exe malware including hwp, disguised as a Vietnamese event estimate

2019-12-03 kino

https://sfkino.tistory.com/76

Thumbnail for exe malware including hwp, disguised as a Vietnamese event estimate

The analysis examines a Windows executable disguised as a Korean HWP quotation document for a Vietnam Nokjiwon and Sangchunjae event. When run, the dropper writes a decoy HWP file and a DLL named NewAct.dat, then invokes the DLL through regsvr32.exe and its DllInstall export. The DLL removes local WSF files, runs a checkdrive export, checks whether the system is 64-bit, and either attempts to download an additional lyric64 payload or injects itself into explorer.exe. The injected code creates a mutex, starts malicious activity threads, communicates with antichrist.or.kr/data/cheditor/dir1/f.php, and uses a rotating XOR routine to decrypt downloaded files.

Indicators of Compromise

Type Value First Seen Last Seen
HASH 35d60d2723c649c97b414b3cb701df1c 2019-12-03 2024-08-14
HASH 03c35e4c6a641373db665e7d58cea42… 2019-12-03 2024-08-14
HASH 1050935f6acee3afda3876478718632… 2019-12-03 2024-08-14
HASH 6dfce07abc39e5d6aebd74a1850ad65… 2019-12-03 2024-08-14
HASH e54b370d96ca0e2ecc083c2d42f05210 2019-12-03 2024-08-14
HASH 9944ce9354fb8961826339770ffc118… 2019-12-03 2024-08-14
DOMAIN antichrist.or.kr 2019-12-03 2024-08-14
HASH 6fb5916d8c10589d23fbc7417c5f924… 2019-12-03 2019-12-03
HASH 4db3f34d439e3d7a04df74e109012da… 2019-12-03 2019-12-03
HASH 328ba7f982d3d775b7c51756daf14496 2019-12-03 2019-12-03
URL http://antichrist.or.kr/data/ch… 2019-12-03 2019-12-03

Related Actors

Related Reports

« Back