Analysis

  • max time kernel
    147s
  • max time network
    118s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-05-2024 11:19

General

  • Target

    6ac52086b2353d329f2c6b96dfc4b2bd_JaffaCakes118.exe

  • Size

    1018KB

  • MD5

    6ac52086b2353d329f2c6b96dfc4b2bd

  • SHA1

    c9ab0a3a4c3439d15ad30a6ea0ad738296853b24

  • SHA256

    ceb8e3b6055c093d73b740ec68aeb2b35688c70ead8d53f9221c677049213905

  • SHA512

    c86f4ce9c915419fe4f43af577ac930413665e4ae9df7453047abe445a08f3910a2e7929d580ba57ecf694302e4f08949ca24278e5f463cc947f32036979f6ff

  • SSDEEP

    24576:ar4FsOULhhUF54clNf7CokNLQyhFoCRsAz:+o54clMSuNj

Malware Config

Signatures

  • Detects Echelon Stealer payload 1 IoCs
  • Echelon

    Echelon is a .NET stealer that targets passwords from browsers, email and cryptocurrency clients.

  • Checks computer location settings 2 TTPs 3 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 2 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • VMProtect packed file 2 IoCs

    Detects executables packed with VMProtect commercial packer.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Delays execution with timeout.exe 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\6ac52086b2353d329f2c6b96dfc4b2bd_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\6ac52086b2353d329f2c6b96dfc4b2bd_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:4736
    • C:\ProgramData\Decoder.exe
      "C:\ProgramData\Decoder.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1080
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
        3⤵
        • Creates scheduled task(s)
        PID:3360
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5060
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:1800
    • C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp4BDE.tmp.cmd""
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2224
      • C:\Windows\system32\timeout.exe
        timeout 4
        3⤵
        • Delays execution with timeout.exe
        PID:3872
  • C:\systems32_bit\systems32.exe
    \systems32_bit\systems32.exe
    1⤵
    • Checks computer location settings
    • Executes dropped EXE
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:84948
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /sc MINUTE /mo 1 /tn "Windows Services" /tr "\systems32_bit\systems32.exe" /f
      2⤵
      • Creates scheduled task(s)
      PID:85748

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Decoder.exe

    Filesize

    148KB

    MD5

    21998709466c12a52cbc5aff86744aae

    SHA1

    5cbb11d167af1e1e1d10f920b084e26a89d5441f

    SHA256

    96d5aff39e576f94994c005b9b7db5d41a6f8db9505f4a462d259f2141830c03

    SHA512

    75398142630308dcf5d90f75b5eafab0a182d63522626cff3798973ab098fc80fda1c767aa6c14649951a54130b8ac12bdcfd8d2e09e01b8cbd91b552b8a3862

  • C:\Users\Admin\AppData\Local\Temp\.cmd

    Filesize

    85B

    MD5

    73712247036b6a24d16502c57a3e5679

    SHA1

    65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

    SHA256

    8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

    SHA512

    548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

  • C:\Users\Admin\AppData\Local\Temp\tmp4BDE.tmp.cmd

    Filesize

    131B

    MD5

    22b06f3a1335e27176e6cb32dc5af2d6

    SHA1

    8a17666adcdaa5adf8a4d3557c20fc8e73955815

    SHA256

    f19c8cb581a32894669abc5df4bc75c52aea6b9784b24bab4555edff037e9560

    SHA512

    1e56c18675dcba565b0b0bcd49f5a8840124011fb37fa5974cad7e738e0208e24dcd84e725a161fad28c78802a1bac3ccce06dd909ef740f27c921608387100f

  • C:\Users\Admin\AppData\Roaming\DDTDXuJNHywPBTVDuVHwJVByy024666B197\97024666B1DDTDXuJNHywPBTVDuVHwJVByy\Browsers\Passwords\Passwords_Edge.txt

    Filesize

    426B

    MD5

    42fa959509b3ed7c94c0cf3728b03f6d

    SHA1

    661292176640beb0b38dc9e7a462518eb592d27d

    SHA256

    870ef3d2370932a8938faa60abd47d75ea0af98bfa11c82ae8efe9e94fd8be00

    SHA512

    7def291737d081c93d0cc38ac8d3062fd34d93b68d191eb0d54e9857e0c0afdbcd241471a2e10c28ce8db3b1d1ae0dba2ef6f609cfe8a1e8fe1dd103dba80007

  • memory/1080-77-0x0000000000B90000-0x0000000000BC2000-memory.dmp

    Filesize

    200KB

  • memory/1080-79-0x00007FF9D6760000-0x00007FF9D7221000-memory.dmp

    Filesize

    10.8MB

  • memory/1080-87-0x00007FF9D6760000-0x00007FF9D7221000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-0-0x00007FF9D6763000-0x00007FF9D6765000-memory.dmp

    Filesize

    8KB

  • memory/4736-1-0x0000000000880000-0x0000000000984000-memory.dmp

    Filesize

    1.0MB

  • memory/4736-2-0x000000001BB70000-0x000000001BBE6000-memory.dmp

    Filesize

    472KB

  • memory/4736-3-0x00007FF9D6760000-0x00007FF9D7221000-memory.dmp

    Filesize

    10.8MB

  • memory/4736-80-0x00007FF9D6760000-0x00007FF9D7221000-memory.dmp

    Filesize

    10.8MB