OPERATION ‘Arabian Night'

2017-05-12 • ESTSecurity •

http://blog.alyac.co.kr/attachment/[email protected]

Attachments

cfile4.uf996DB6365A7253830AD55C.pdf (1 MB)

ESTsecurity analyzed the Arabian Night operation using a malicious Word document named Hanssak System that relied on social engineering to prompt macro execution. When macros ran, the document XOR-decoded and dropped a decoy Kuipernet installation survey document and a svchost.exe bot that copied itself as java.exe, added JavaUpdate persistence, collected host and system information, and contacted four C2 IP addresses located in South Korea. The bot supported commands for disk and process discovery, file listing and theft, program execution, C2 reconfiguration, communication checks, timestamp changes, and destructive file operations. Metadata and code similarities linked the sinbad-authored document set to earlier IsOne-related Shadow Play material, including similar macro structure, CMD string construction, and forensic-resistant file deletion behavior.

Indicators of Compromise

Type Value First Seen Last Seen
IPv4 221.138.17.152 2017-04-07 2020-02-25
HASH 0cb8ec97795066ecf77d92a5dbce7d3… 2017-05-12 2018-09-24
IPv4 211.233.13.62 2017-04-07 2018-04-11
HASH a094d656bde6aec3f71147512330ef4… 2017-05-12 2017-05-12
HASH d7bd43469d704e309c07cc6d438b285… 2017-05-12 2017-05-12
HASH 8ebb4ebfd07f7b63087e6ca737f6915… 2017-05-12 2017-05-12
HASH d56431a28c915da2d6069716f33ce4e… 2017-05-12 2017-05-12
HASH 59ef980bcfd006687deef65e2e383a1… 2017-05-12 2017-05-12
HASH 60809a27c21352448bf57a0471b51a8… 2017-05-12 2017-05-12
HASH 09c62ac3a31f68ea8ef15a0e0038bef… 2017-05-12 2017-05-12
HASH c02c0e96311419c7b40a9c59fdfe9cb… 2017-05-12 2017-05-12
HASH bae96ee6225a0544b428bbd4c55830e… 2017-05-12 2017-05-12
HASH 5b9dc4aa78c60588d80a1a842fdb03b… 2017-05-12 2017-05-12
HASH 754a34712af27454e56f175e701f738… 2017-05-12 2017-05-12
HASH 3b95d06d8b74455ec79a6a7579c7d5d… 2017-05-12 2017-05-12
HASH 9fc67f7b83438067ec64202fbaf4bda… 2017-05-12 2017-05-12
HASH ad3749b0a3ec1e6421a81f0ef4014ce… 2017-05-12 2017-05-12
HASH df2ca2e43a262e1b99eeaafbb72ca1a… 2017-05-12 2017-05-12
HASH 988eb3da53c124b4c5b0563f2bf68b7… 2017-05-12 2017-05-12
HASH d47dc7af8814422dd36801c158707359 2017-05-12 2017-05-12
URL http://www.kuipernet.co.kr/about 2017-05-12 2017-05-12
URL http://www.kuipernet.co.kr/supp… 2017-05-12 2017-05-12
HASH f21290968b51b11516e7a86e301148e… 2017-04-07 2017-05-12
HASH 31e8a920822ee2a273eb91ec59f5e93… 2017-04-07 2017-05-12
HASH 90e74b5d762fa00fff851d2f3fad8dc… 2017-04-07 2017-05-12
HASH d1e4d51024b0e25cfac56b1268e1de2… 2017-04-07 2017-05-12
HASH 49ecead98ebc750cf0e1c48fccf5c4b… 2017-04-07 2017-05-12
HASH 9e71d0fdb9874049f310a6ab118ba25… 2017-04-07 2017-05-12
HASH 8b2c44c4b4dc3d7cf1b71bd6fcc3789… 2017-04-07 2017-05-12
HASH 09fc4219169ce7aac5e408c7f5c7bfd… 2017-04-07 2017-05-12
HASH 600ddacdf16559135f6e581d41b30d0… 2017-04-07 2017-05-12
HASH 040d20357cbb9e950a3dd0b0e5c3260… 2017-04-07 2017-05-12
HASH 1efffd64f2215e2b574b9f8892bbb3a… 2017-04-07 2017-05-12
HASH 1491896d42eb975400958b2c575522d… 2017-04-07 2017-05-12
HASH dfc420190ef535cbabf63436e905954… 2017-04-07 2017-05-12
HASH cec26d8629c5f223a120677a5c7fbd8… 2017-04-07 2017-05-12
IPv4 211.49.171.243 2017-04-07 2017-05-12
IPv4 211.236.42.52 2017-04-07 2017-05-12

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