Analysis

  • max time kernel
    158s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:32

General

  • Target

    09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe

  • Size

    176KB

  • MD5

    0685bb3813be887ee0d1d0950810f351

  • SHA1

    5da37a8b9000eb29640a6258e488f71f8b1b89fd

  • SHA256

    09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a

  • SHA512

    a1d71e43f1c982c0d98d2881b071b342d9947b60c9fd4d568476219be7f3c983300e13408f0a583c987175b9cb8a9783ad445c0851c3c718d622aa655b7e18af

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 4 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Modifies data under HKEY_USERS 51 IoCs
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe
    "C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:2980
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:920
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\09c5b7ad0bcee2a8db27fea3323a4d8d2044ea9bab7eb0f69fe0051eb75a3a7a.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3164
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3640
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:1716
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:1128
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:1832

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    b3b8e4adce7296277dbd4d5443626988

    SHA1

    87938df8376e76eebfd2c7a13d92adf8e221f038

    SHA256

    f4cc63300626f36d3ae7fd7eb38b789ef57dcc962f81c53048d2bcac09dd0bc9

    SHA512

    cd729d952a143fc4cf7d0a47361e2c1f85368575e01ee2b0e17289f430782aeea5f1a328d168a5cc034edd08ae81a8f62b91e91d4dcf94baec1cca9bb697f7f4

  • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
    MD5

    b3b8e4adce7296277dbd4d5443626988

    SHA1

    87938df8376e76eebfd2c7a13d92adf8e221f038

    SHA256

    f4cc63300626f36d3ae7fd7eb38b789ef57dcc962f81c53048d2bcac09dd0bc9

    SHA512

    cd729d952a143fc4cf7d0a47361e2c1f85368575e01ee2b0e17289f430782aeea5f1a328d168a5cc034edd08ae81a8f62b91e91d4dcf94baec1cca9bb697f7f4

  • memory/920-133-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2980-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB