Analysis

  • max time kernel
    165s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    12-02-2022 09:54

General

  • Target

    08a291482bb256e6ecce5a8ecbb2a91d6e3f5c66486b7ef288ea85f9f9958d80.exe

  • Size

    216KB

  • MD5

    f2c78d4bc66c26308c5cc20ad89cad23

  • SHA1

    01bba18a315ebf0b539e779c585b8a5982dd6be9

  • SHA256

    08a291482bb256e6ecce5a8ecbb2a91d6e3f5c66486b7ef288ea85f9f9958d80

  • SHA512

    e62416b1451c3b75a7fca6197accd44fc55c2839fdeec7a420301974b2cc99e91c1dbf05704067a2eae78cb2c9e8385f5f7647471e3b5a3410a0d930956ccac8

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 54 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\08a291482bb256e6ecce5a8ecbb2a91d6e3f5c66486b7ef288ea85f9f9958d80.exe
    "C:\Users\Admin\AppData\Local\Temp\08a291482bb256e6ecce5a8ecbb2a91d6e3f5c66486b7ef288ea85f9f9958d80.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4040
    • C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      C:\Users\Admin\AppData\Local\Temp\MicroMedia\MediaCenter.exe
      2⤵
      • Executes dropped EXE
      PID:3868
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c ping 127.0.0.1 & del /q "C:\Users\Admin\AppData\Local\Temp\08a291482bb256e6ecce5a8ecbb2a91d6e3f5c66486b7ef288ea85f9f9958d80.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3948
      • C:\Windows\SysWOW64\PING.EXE
        ping 127.0.0.1
        3⤵
        • Runs ping.exe
        PID:2152
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3736
  • 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:1992
  • 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:3708

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    7c555548839884a3e8e98f13561b737d

    SHA1

    1bee70dd838e0b1b27b5bb047e8b2910106a1588

    SHA256

    489ac41855cdb53a0e6166c73b6086d18eac31f45c84068d9b354811a19e6f72

    SHA512

    0b3bcdc26497a3975a45e63ee8a0a16322371cc7c7e3d7aae839f0d34fe71d0384c58bdfcd29ece2927b7281d60babbdcf992b85adacf96a159ff83de9369b76

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

    7c555548839884a3e8e98f13561b737d

    SHA1

    1bee70dd838e0b1b27b5bb047e8b2910106a1588

    SHA256

    489ac41855cdb53a0e6166c73b6086d18eac31f45c84068d9b354811a19e6f72

    SHA512

    0b3bcdc26497a3975a45e63ee8a0a16322371cc7c7e3d7aae839f0d34fe71d0384c58bdfcd29ece2927b7281d60babbdcf992b85adacf96a159ff83de9369b76

  • memory/4040-132-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB