Analysis

  • max time kernel
    99s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06-01-2025 20:31

General

  • Target

    JaffaCakes118_390dd59148813ad0840879356f07fd83.exe

  • Size

    1.7MB

  • MD5

    390dd59148813ad0840879356f07fd83

  • SHA1

    491da1a69681cfc52af47f7c539a760952c4dce0

  • SHA256

    fb45e873e47c87d39dfb7f085901b185ca371f7f2048d55bf82aa66a1ed5f4b1

  • SHA512

    212ebeeae43d9e30d5bf8773dfe9b9bbfa9c96edcc5c5c7b5a9f709f098e99edbdba8f108bb4a5574155834ec730706f50ae41a58e921fe27b39fe2671a42452

  • SSDEEP

    49152:ePi6l+XvtgMDLrByvqCzxEybf/XYvbZe1V:ePOFLrB8hxnPYv

Malware Config

Signatures

  • Detects Echelon Stealer payload 2 IoCs
  • Echelon

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

  • Echelon family
  • 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 3 TTPs

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

  • 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.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Delays execution with timeout.exe 2 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 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\JaffaCakes118_390dd59148813ad0840879356f07fd83.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_390dd59148813ad0840879356f07fd83.exe"
    1⤵
    • Checks computer location settings
    • Accesses Microsoft Outlook profiles
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    • outlook_office_path
    • outlook_win_path
    PID:548
    • 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:808
      • 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⤵
        • Scheduled Task/Job: Scheduled Task
        PID:3108
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\.cmd""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2252
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1224
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp8A4E.tmp.cmd""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1076
      • C:\Windows\SysWOW64\timeout.exe
        timeout 4
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4376
  • 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:58960
    • 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⤵
      • Scheduled Task/Job: Scheduled Task
      PID:59428

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\ProgramData\Decoder.exe

    Filesize

    39KB

    MD5

    e753a9a4c3a393d9eccc31e5c6aded66

    SHA1

    5501ae71598925711dbee54f6ee1c827dd01d845

    SHA256

    52773fccbe6883ca7465ffe857c3fe7193521f0807bd8462f95bd4ad73be9867

    SHA512

    ee03d79cd24db07c3466cc602a657c9eb33119267b591a64a0d9215e3a80a24e3c435275ccfb5ffd7356def5bf717c5f2d8bc9a5b2daf1950ecf951b5e614c2e

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

    Filesize

    85B

    MD5

    73712247036b6a24d16502c57a3e5679

    SHA1

    65ca9edadb0773fc34db7dfefe9e6416f1ac17fa

    SHA256

    8bd49d7e7e6b2c2dc16a4cb0eebb8f28892775fad56c9e4aaa22d59f01883cd0

    SHA512

    548eef10b0118f7d907fa19c12de68b47278afffb3eb9460621efb2b711ebcf6b90d0ea1c077fc480e032bf241fb3f8cc995ec1373e301446f89f1a74a6309de

  • C:\Users\Admin\AppData\Local\Temp\tmp8A4E.tmp.cmd

    Filesize

    131B

    MD5

    7589222372b2cc41f3ed10bf93e222cc

    SHA1

    e6cdbaaa4eb8c37fc370e3db2d65504c468b8bdd

    SHA256

    08e186a159d5ab91f0f2ed6734b11b140a235760de1a9f525b59e70048f81eae

    SHA512

    2cf18583196b1c7841ca6bf127dafa339f8bb3ea888f8af848acf0467dc77e62dae7eedd826b1a0360c10dbd207633825765447cd923b37773a163ac3fae82c9

  • memory/548-34-0x00000000082F0000-0x0000000008894000-memory.dmp

    Filesize

    5.6MB

  • memory/548-66-0x0000000074AB0000-0x0000000075260000-memory.dmp

    Filesize

    7.7MB

  • memory/548-5-0x0000000006910000-0x0000000006986000-memory.dmp

    Filesize

    472KB

  • memory/548-10-0x0000000007430000-0x00000000074CC000-memory.dmp

    Filesize

    624KB

  • memory/548-32-0x0000000007CA0000-0x0000000007D32000-memory.dmp

    Filesize

    584KB

  • memory/548-0-0x0000000000C10000-0x000000000105E000-memory.dmp

    Filesize

    4.3MB

  • memory/548-3-0x00000000060C0000-0x0000000006126000-memory.dmp

    Filesize

    408KB

  • memory/548-1-0x0000000074ABE000-0x0000000074ABF000-memory.dmp

    Filesize

    4KB

  • memory/548-2-0x0000000000C10000-0x000000000105E000-memory.dmp

    Filesize

    4.3MB

  • memory/548-65-0x0000000000C10000-0x000000000105E000-memory.dmp

    Filesize

    4.3MB

  • memory/548-4-0x0000000074AB0000-0x0000000075260000-memory.dmp

    Filesize

    7.7MB

  • memory/808-62-0x00000000004E0000-0x00000000004F0000-memory.dmp

    Filesize

    64KB

  • memory/808-59-0x00007FFCD8CE3000-0x00007FFCD8CE5000-memory.dmp

    Filesize

    8KB

  • memory/808-73-0x00007FFCD8CE3000-0x00007FFCD8CE5000-memory.dmp

    Filesize

    8KB