Resubmissions

22/11/2025, 17:35

251122-v57jgsbn8x10

22/11/2025, 17:26

251122-vz93esbn4z

22/11/2025, 17:15

251122-vsrmhabm4v10

22/11/2025, 17:02

251122-vkblbavldp10

22/11/2025, 16:57

251122-vggyxsvkgr10

22/11/2025, 16:49

251122-vb6ebsbk5110

22/11/2025, 13:45

251122-q2m88aaj4t10

21/11/2025, 21:15

251121-z4cpyagj3w

12/11/2025, 03:22

251112-dw9ttaxrgx10

General

  • Target
    251028-vkjxpaxrap_pw_infected.zip
  • Size 45.4MB
  • Sample251122-vkblbavldp
  • SHA256 6805b3c7c5234bd7f0fdc6355fddbb53152f605865d96deb5ed115b67baff445
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Family
  • darkcomet

Botnet
  • Guest16

C2
  • bibl1234.ddns.net:1604

Mutex
  • DC_MUTEX-QKPH38W

Attributes
  • InstallPath

    MSDCSC\msdcsc.exe

  • gencode

    2PaBrGj3TwxK

  • install

    true

  • offline_keylogger

    true

  • persistence

    true

  • reg_key

    MicroUpdate

rc4.plain

Targets

    • Target
      Payload/Blocked.app/7s.png
    • Size 345B
    • SHA256 e2cfc1bc51d084ad43300a412d9140fa982ab73fcd2c8d6e3afbb2dcb675e5c4
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Malware-1-master/GunMayhem1unblocked.swf
    • Size 5.7MB
    • SHA256 f85f970882bc6667749e219a13736c9ec21b8c9c24b8b72bfe272f33be4248f1
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      Malware-1-master/MEMZ-Clean.exe
    • Size 12KB
    • SHA256 4bbf7589615ebdb6c769d6d2e7bdcb26072bac0cda6e225a4133ba8819e688d5
    • MD5 SHA1 SHA512 SSDEEP
    Score
    7/10
    • Checks computer location settings

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

    • Target
      Malware-1-master/MEMZ-Destructive.bat
    • Size 13KB
    • SHA256 5e2cd213ff47b7657abd9167c38ffd8b53c13261fe22adddea92b5a2d9e320ad
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

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

    • Executes dropped EXE

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Target
      Malware-1-master/MEMZ-Destructive.exe
    • Size 14KB
    • SHA256 a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

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

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Target
      Malware-1-master/README.md
    • Size 123B
    • SHA256 fb39bb4709cdc96c648555b44956551859f4196be099b477e90046197005f1de
    • MD5 SHA1 SHA512
    Score
    3/10
    • Target
      Malware-1-master/TX3_ojTHxaEidvzTZOAvBPqzTUsyZYJYhArok5hFTyw
    • Size 87B
    • SHA256 05a2b68c52dcc91875f3ec3855a0a8c230651b41c11e38d49e528bc366cbf3e1
    • MD5 SHA1 SHA512
    Score
    1/10
    • Target
      Malware-1-master/Win32.EvilClusterFuck.exe
    • Size 64KB
    • SHA256 c9b98408ca67d08e1986d1855c4d99944caad5580533d18496cd8de86dd0885f
    • MD5 SHA1 SHA512 SSDEEP
    Score
    3/10
    • Target
      Malware-1-master/apache.exe
    • Size 252KB
    • SHA256 1117f585985ca4ddd03695876522f80951c919cb41db5854f013923f62285c09
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      Malware-1-master/butterflyondesktop.exe
    • Size 2.8MB
    • SHA256 4641af6a0071e11e13ad3b1cd950e01300542c2b9efb6ae92ffecedde974a4a6
    • MD5 SHA1 SHA512 SSDEEP
    • Executes dropped EXE

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Target
      Malware-1-master/fear.png.exe
    • Size 66KB
    • SHA256 101678f77a65b5b5830a128e4c737b2aaaea5be95327ec68213ebb92e4251170
    • MD5 SHA1 SHA512 SSDEEP
    Score
    6/10
    • Legitimate hosting services abused for malware hosting/C2

    • Target
      Malware-1-master/getr3kt.bat
    • Size 13KB
    • SHA256 5e2cd213ff47b7657abd9167c38ffd8b53c13261fe22adddea92b5a2d9e320ad
    • MD5 SHA1 SHA512 SSDEEP
    • Checks computer location settings

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

    • Executes dropped EXE

    • Writes to the Master Boot Record (MBR)

      Bootkits write to the MBR to gain persistence at a level below the operating system.

    • Target
      Malware-1-master/iimo3.exe
    • Size 1.7MB
    • SHA256 5ac017285572c24fc8b77324a52ca484e83c3622c61bea80a74a6850f0a16061
    • MD5 SHA1 SHA512 SSDEEP
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Checks BIOS information in registry

      BIOS information is often read in order to detect sandboxing environments.

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Checks whether UAC is enabled

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Target
      Malware-1-master/qOA7iZJcoB8.exe
    • Size 400KB
    • SHA256 6b111be3c180de78849b4f1c2d39ee0045695e22d339b50879a769351b1e6b31
    • MD5 SHA1 SHA512 SSDEEP
    • Target
      Malware-1-master/wintonic.exe
    • Size 1.6MB
    • SHA256 a0375c241cebcf6c4a0293f45a5dc0ce1150fe8169ea410c818af67e6f487b4c
    • MD5 SHA1 SHA512 SSDEEP

MITRE ATT&CK Enterprise v16

Tasks