Resubmissions

08-06-2024 13:27

240608-qp2wvaca2s 10

08-06-2024 11:01

240608-m4jf9sbh54 10

General

  • Target

    B44A8DBE40CF3D75A23D5B991246249B.exe

  • Size

    386KB

  • Sample

    240608-m4jf9sbh54

  • MD5

    b44a8dbe40cf3d75a23d5b991246249b

  • SHA1

    78f70912abd3599935dd15d12428b41bee81e452

  • SHA256

    e93ea2c9e689a35ef77e597a4cf34409f9c02dd74790716eae060304995d6289

  • SHA512

    9dbdd06ba87fb1478c07bf97facf69e079553393c3905afc960ea1bb5727aa59b260bd77652b3c877de518234875f6a8fb7fd82096c9049578ae143d47609251

  • SSDEEP

    6144:JzYyFEqhqQK0TNhueSIfpzDx0J6Mml61EqIMiFNEnpIxI62:T1oQ1TbnRHclBIMiQpU2

Malware Config

Targets

    • Target

      B44A8DBE40CF3D75A23D5B991246249B.exe

    • Size

      386KB

    • MD5

      b44a8dbe40cf3d75a23d5b991246249b

    • SHA1

      78f70912abd3599935dd15d12428b41bee81e452

    • SHA256

      e93ea2c9e689a35ef77e597a4cf34409f9c02dd74790716eae060304995d6289

    • SHA512

      9dbdd06ba87fb1478c07bf97facf69e079553393c3905afc960ea1bb5727aa59b260bd77652b3c877de518234875f6a8fb7fd82096c9049578ae143d47609251

    • SSDEEP

      6144:JzYyFEqhqQK0TNhueSIfpzDx0J6Mml61EqIMiFNEnpIxI62:T1oQ1TbnRHclBIMiQpU2

    • 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

    • 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 v13

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Virtualization/Sandbox Evasion

3
T1497

Modify Registry

2
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