General

  • Target

    6ff88bf2296b946843af01f573fcef8ddcb4f2784a331cd97badf518e8f9e680

  • Size

    4KB

  • Sample

    220317-b7wp8agdhp

  • MD5

    2c0275283e4fbadda153bfc1749c3ef3

  • SHA1

    bde10a92bff89b8ea0c3c72a81241774cbbe1541

  • SHA256

    6ff88bf2296b946843af01f573fcef8ddcb4f2784a331cd97badf518e8f9e680

  • SHA512

    ed4e27a46e6c54f214374e791bf346449280258462dc6fc3bfe22bf077bc22c71058721be5b75e27baaca156c341517dbc9d72e299245fdaf6cc119f3f652677

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

http://34.105.85.231/DODO/SecurityHealth.exe

exe.dropper

http://34.105.85.231/DODO/SecurityHealth.exe.manifest

exe.dropper

http://34.105.220.186/New/Avast.txt

exe.dropper

http://34.105.220.186/New/Killd.txt

exe.dropper

http://34.105.220.186/New/All.txt

Extracted

Family

vjw0rm

C2

http://help-microsoft.dnslive.net:1166

Targets

    • Target

      6ff88bf2296b946843af01f573fcef8ddcb4f2784a331cd97badf518e8f9e680

    • Size

      4KB

    • MD5

      2c0275283e4fbadda153bfc1749c3ef3

    • SHA1

      bde10a92bff89b8ea0c3c72a81241774cbbe1541

    • SHA256

      6ff88bf2296b946843af01f573fcef8ddcb4f2784a331cd97badf518e8f9e680

    • SHA512

      ed4e27a46e6c54f214374e791bf346449280258462dc6fc3bfe22bf077bc22c71058721be5b75e27baaca156c341517dbc9d72e299245fdaf6cc119f3f652677

    • Vjw0rm

      Vjw0rm is a remote access trojan written in JavaScript.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • Loads dropped DLL

    • Adds Run key to start application

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

Defense Evasion

Modify Registry

2
T1112

Install Root Certificate

1
T1130

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Tasks