Analysis

  • max time kernel
    137s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230915-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230915-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-10-2023 01:24

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:1212
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\AdobeUpdate.exe
      2⤵
      • Executes dropped EXE
      PID:1232
    • 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:4856
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3176

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

    f0072e3667ca5a8bdac217c0823cd6a6

    SHA1

    0436ef83e94b7184269b6261062682efd5f14c4e

    SHA256

    8a65af1720fd06f52052fa9613a98170d824c649675d61fd53ba6f55871ff976

    SHA512

    3debca21653fb35eb27569068ce6a40a18ffbb371b1c77bd76a296da141c5623b07da2b5502d57f439bfa3bea8321267f68bb7f3c52c63200a95939b8f559912

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

    Filesize

    92KB

    MD5

    f0072e3667ca5a8bdac217c0823cd6a6

    SHA1

    0436ef83e94b7184269b6261062682efd5f14c4e

    SHA256

    8a65af1720fd06f52052fa9613a98170d824c649675d61fd53ba6f55871ff976

    SHA512

    3debca21653fb35eb27569068ce6a40a18ffbb371b1c77bd76a296da141c5623b07da2b5502d57f439bfa3bea8321267f68bb7f3c52c63200a95939b8f559912