General

  • Target

    8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe

  • Size

    274KB

  • Sample

    220806-tr5masahg4

  • MD5

    9c4211d39decc16081148906357cb7c1

  • SHA1

    3af2dacd93722f979a5dd7cf62775fe96d53ebbd

  • SHA256

    8641e15c78f1ce0512d18e2bf90539ff8df008e4092b001cda6ca0cebd99ae25

  • SHA512

    b01ab246c0223414e83c38a3c839ce5fb1ca23a3f0c63d0f17b54de4a3c8a2131e683d775efc529c7dd4fae3210f2e7e9f16dc404a8ddbc6d31c03afc0cc3ad5

Malware Config

Targets

    • Target

      8641E15C78F1CE0512D18E2BF90539FF8DF008E4092B0.exe

    • Size

      274KB

    • MD5

      9c4211d39decc16081148906357cb7c1

    • SHA1

      3af2dacd93722f979a5dd7cf62775fe96d53ebbd

    • SHA256

      8641e15c78f1ce0512d18e2bf90539ff8df008e4092b001cda6ca0cebd99ae25

    • SHA512

      b01ab246c0223414e83c38a3c839ce5fb1ca23a3f0c63d0f17b54de4a3c8a2131e683d775efc529c7dd4fae3210f2e7e9f16dc404a8ddbc6d31c03afc0cc3ad5

    • ModiLoader, DBatLoader

      ModiLoader is a Delphi loader that misuses cloud services to download other malicious families.

    • Process spawned unexpected child process

      This typically indicates the parent process was compromised via an exploit or macro.

    • Checks for common network interception software

      Looks in the registry for tools like Wireshark or Fiddler commonly used to analyze network activity.

    • Looks for VirtualBox Guest Additions in registry

    • Looks for VirtualBox drivers on disk

    • ModiLoader Second Stage

    • Adds policy Run key to start application

    • Looks for VMWare Tools registry key

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Deletes itself

    • Adds Run key to start application

    • Maps connected drives based on registry

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

2
T1060

Defense Evasion

Virtualization/Sandbox Evasion

3
T1497

Modify Registry

3
T1112

Discovery

Software Discovery

1
T1518

Query Registry

5
T1012

Virtualization/Sandbox Evasion

3
T1497

File and Directory Discovery

1
T1083

System Information Discovery

4
T1082

Peripheral Device Discovery

1
T1120

Tasks