Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-09-2023 14:19

General

  • Target

    dfd1856323cba7485217cee5c5c8f48f_JC.exe

  • Size

    92KB

  • MD5

    dfd1856323cba7485217cee5c5c8f48f

  • SHA1

    cddf93ff37818ebf3ec1f36939a47591c7fac798

  • SHA256

    e67eeb117157e80b07099997f130125100ff35cc44712e54f1842a26e89d5050

  • SHA512

    b0ccc4e9e2690c855309c4277b198940e839c64c94d0f3b9eabdacb2deb41be37498b6efc91d8e5e3215e74f23baeba3b378c3ecf64387f8da66b4137345bcc2

  • SSDEEP

    1536:TJbCiJVkgMaT2itTkjoRXnM48dXFajVPYxCEtkz30rtrC:9bfVk29te2jqxCEtg30BG

Malware Config

Extracted

Family

sakula

C2

www.savmpet.com

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe
    "C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4012
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
      2⤵
      • Executes dropped EXE
      PID:5004
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\dfd1856323cba7485217cee5c5c8f48f_JC.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4752
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:4080

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

    Filesize

    92KB

    MD5

    ee9ad80f5f642a4d6bd263cba979feab

    SHA1

    1087e8ca19b0b93581d4c4584cba3ddcafeb0a5a

    SHA256

    01315b7239d82db8596bc53dc434827e51917976e5112bfc16e1b8b988729fb4

    SHA512

    caf9b5c7a3276b06e5d1effbabc3a394cad56a0c35969eb2bfc5612d4937c11b3e1b5fa9ddbd224b695a4555e1b7fa0feff257f26a50613f3adf8f3d94861ec9

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe

    Filesize

    92KB

    MD5

    ee9ad80f5f642a4d6bd263cba979feab

    SHA1

    1087e8ca19b0b93581d4c4584cba3ddcafeb0a5a

    SHA256

    01315b7239d82db8596bc53dc434827e51917976e5112bfc16e1b8b988729fb4

    SHA512

    caf9b5c7a3276b06e5d1effbabc3a394cad56a0c35969eb2bfc5612d4937c11b3e1b5fa9ddbd224b695a4555e1b7fa0feff257f26a50613f3adf8f3d94861ec9