Analysis

  • max time kernel
    177s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:47

General

  • Target

    090b87da1706238bf8bbe803c5e5e7ce9e69fccd338d72dce7ee5a563ae78e93.exe

  • Size

    36KB

  • MD5

    d267b74f271cc7ceb26ac53a40d78f48

  • SHA1

    8b42862716c3e1ebf10f493aeb539f072f51c008

  • SHA256

    090b87da1706238bf8bbe803c5e5e7ce9e69fccd338d72dce7ee5a563ae78e93

  • SHA512

    53bc41a110d9e578cb9a7599a13a87124f806efcb5fb964b14e8035876a815f1d543bd10411001be3e476da1cff78515339283328184847a9dd42eccf66a76e1

Malware Config

Signatures

  • Sakula

    Sakula is a remote access trojan with various capabilities.

  • 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\090b87da1706238bf8bbe803c5e5e7ce9e69fccd338d72dce7ee5a563ae78e93.exe
    "C:\Users\Admin\AppData\Local\Temp\090b87da1706238bf8bbe803c5e5e7ce9e69fccd338d72dce7ee5a563ae78e93.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of WriteProcessMemory
    PID:4048
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:2288
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\090b87da1706238bf8bbe803c5e5e7ce9e69fccd338d72dce7ee5a563ae78e93.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4092
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2328
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 0
    1⤵
    • Checks processor information in registry
    PID:1996
  • 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:496
  • 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:864

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    0176b09754f90ad2edbc67d9102274ee

    SHA1

    c4193b0d5496f629390625ab0917568f27500e9f

    SHA256

    fcb690f4348cec2ec94200057bc9dc91083d7c76442ed6e907a32185eb8a0ec9

    SHA512

    15b054d935600ee2136e38243359c4fc139b23dd19539b7a152a376956be4a36c636d64a5591d0124ff1a636a7b2dccf3ccc40d2220328c556e890dfee391ddf

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

    0176b09754f90ad2edbc67d9102274ee

    SHA1

    c4193b0d5496f629390625ab0917568f27500e9f

    SHA256

    fcb690f4348cec2ec94200057bc9dc91083d7c76442ed6e907a32185eb8a0ec9

    SHA512

    15b054d935600ee2136e38243359c4fc139b23dd19539b7a152a376956be4a36c636d64a5591d0124ff1a636a7b2dccf3ccc40d2220328c556e890dfee391ddf