Analysis

  • max time kernel
    161s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 10:44

General

  • Target

    0638553617c7dcfe21f3e4f4cebf5dad08fa5c23847ad3a72c40d260fbbe1e26.exe

  • Size

    216KB

  • MD5

    0255235f956389bfe52a1234c4fe873a

  • SHA1

    c2d76e4c77748738884d3cb619a71c3598fd4ac3

  • SHA256

    0638553617c7dcfe21f3e4f4cebf5dad08fa5c23847ad3a72c40d260fbbe1e26

  • SHA512

    a1e900ae3d7bd6f0763623924d078ccd9cee1d64519d25dd86b9e86895a45f2164eb9c58ac469c8cf371dba096effd8b8bc4bc892e6358192f6f61bed075dc9b

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • Sakula Payload 3 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 50 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\0638553617c7dcfe21f3e4f4cebf5dad08fa5c23847ad3a72c40d260fbbe1e26.exe
    "C:\Users\Admin\AppData\Local\Temp\0638553617c7dcfe21f3e4f4cebf5dad08fa5c23847ad3a72c40d260fbbe1e26.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1040
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:680
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\0638553617c7dcfe21f3e4f4cebf5dad08fa5c23847ad3a72c40d260fbbe1e26.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3172
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:3684
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:2120
  • 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:3976
  • 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:1020

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    2ffa43052af20070ef75c35ead8fb2b7

    SHA1

    54beb067e3f0f54a51809eb33e60e12d3935844d

    SHA256

    8c01dcc2442fb31ec5fb5713062340ee31668b6fe42a2782c1a53406c6619439

    SHA512

    c5bd058bd6515bddb6d19838c98883ec2e621de4448ebd9600cccb66bba509e1fbbee56939a30b4665b513c4684874281d03f127a78619c968161e93ac089453

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

    2ffa43052af20070ef75c35ead8fb2b7

    SHA1

    54beb067e3f0f54a51809eb33e60e12d3935844d

    SHA256

    8c01dcc2442fb31ec5fb5713062340ee31668b6fe42a2782c1a53406c6619439

    SHA512

    c5bd058bd6515bddb6d19838c98883ec2e621de4448ebd9600cccb66bba509e1fbbee56939a30b4665b513c4684874281d03f127a78619c968161e93ac089453

  • memory/1040-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB