Resubmissions

28-06-2023 17:35

230628-v5z5eaad87 8

General

  • Target

    Tax_Statement_2022 .vbs

  • Size

    11KB

  • Sample

    230628-v5z5eaad87

  • MD5

    a6ecc90056e3e910c3b39624f708eb66

  • SHA1

    72f6cdcdcf0114e50061a40078bc7cc60f7cd95e

  • SHA256

    ed660ae4e1ff7e57c133b6d3d0a72bd41d6058cd2fe827466afd9d1d372fd4b1

  • SHA512

    222c55a3bb009be3f13165db81297043135c89454fdcbafdd0864af90741272b94d127c525263766198165eeecba1749237cab5803e6442de995193b50278b7f

  • SSDEEP

    192:Npy58UoGL9i5lB5HQmpikw1BRKsyj0B41HCAEcYnd5DvxR7Nl5:Cdps6mFqbKlv2zh

Malware Config

Targets

    • Target

      Tax_Statement_2022 .vbs

    • Size

      11KB

    • MD5

      a6ecc90056e3e910c3b39624f708eb66

    • SHA1

      72f6cdcdcf0114e50061a40078bc7cc60f7cd95e

    • SHA256

      ed660ae4e1ff7e57c133b6d3d0a72bd41d6058cd2fe827466afd9d1d372fd4b1

    • SHA512

      222c55a3bb009be3f13165db81297043135c89454fdcbafdd0864af90741272b94d127c525263766198165eeecba1749237cab5803e6442de995193b50278b7f

    • SSDEEP

      192:Npy58UoGL9i5lB5HQmpikw1BRKsyj0B41HCAEcYnd5DvxR7Nl5:Cdps6mFqbKlv2zh

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Drops startup file

    • Registers COM server for autorun

    • Accesses Microsoft Outlook profiles

    • Legitimate hosting services abused for malware hosting/C2

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Discovery

Query Registry

4
T1012

System Information Discovery

4
T1082

Collection

Email Collection

1
T1114

Command and Control

Web Service

1
T1102

Tasks