Analysis

  • max time kernel
    143s
  • max time network
    105s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-09-2024 04:08

General

  • Target

    dbc8b3569046c9122415431ad4911cec_JaffaCakes118.exe

  • Size

    1000KB

  • MD5

    dbc8b3569046c9122415431ad4911cec

  • SHA1

    acfaa25b229174d2c9189f1c8e38dccc7b5e5ff6

  • SHA256

    5357401248b44ed57f3fe12fb604e47a3eba3e99111f7a5fb04b2385c386fb19

  • SHA512

    23bd8691ede5ea92b161884d59aa6512f2ac23387b1078a03573b6d08cde01433ed19ccfb5ee67b5f147dbd8c9b6ad028d1d862868dfd3c13300b66d63c7f578

  • SSDEEP

    24576:LSW6SIhZbWsv+6szFB8hxeKxgDziC79XNSXdPnd4:L9aMfHDMCnwq

Malware Config

Signatures

  • HawkEye

    HawkEye is a malware kit that has seen continuous development since at least 2013.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • Detected Nirsoft tools 18 IoCs

    Free utilities often used by attackers which can steal passwords, product keys, etc.

  • NirSoft MailPassView 15 IoCs

    Password recovery tool for various email clients

  • NirSoft WebBrowserPassView 15 IoCs

    Password recovery tool for various web browsers

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Uses the VBS compiler for execution 1 TTPs
  • Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 2 IoCs

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

  • Suspicious use of SetThreadContext 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 6 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 27 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\dbc8b3569046c9122415431ad4911cec_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\dbc8b3569046c9122415431ad4911cec_JaffaCakes118.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3884
    • C:\Users\Admin\AppData\Local\Temp\dbc8b3569046c9122415431ad4911cec_JaffaCakes118.exe
      "C:\Users\Admin\AppData\Local\Temp\dbc8b3569046c9122415431ad4911cec_JaffaCakes118.exe"
      2⤵
      • Checks computer location settings
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2192
      • C:\Users\Admin\AppData\Roaming\Windows Update.exe
        "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of WriteProcessMemory
        PID:2928
        • C:\Users\Admin\AppData\Roaming\Windows Update.exe
          "C:\Users\Admin\AppData\Roaming\Windows Update.exe"
          4⤵
          • Deletes itself
          • Executes dropped EXE
          • Adds Run key to start application
          • Suspicious use of SetThreadContext
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2924
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"
            5⤵
            • Accesses Microsoft Outlook accounts
            • System Location Discovery: System Language Discovery
            PID:452
          • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
            C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"
            5⤵
            • System Location Discovery: System Language Discovery
            • Suspicious behavior: EnumeratesProcesses
            PID:4892

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\SysInfo.txt

    Filesize

    84B

    MD5

    d4f5c82f0272ba9529e3cea1bfc19042

    SHA1

    b8f36871c454465430a6cc5bb7d90a2eb62a213c

    SHA256

    50113ab5eb6d365a0d82e8c71e4c5c15ae854d66e4bae117ba2e1fa11ecc3e1f

    SHA512

    0f294cf9d0c8c1a7d2eab3121d62619f8d1a03f5b65a00874fb6b81f7c773e33c15e755988d90d3dd0034fae9ed84205d0cc06f24ee9b61ba20e37f947ee7820

  • C:\Users\Admin\AppData\Local\Temp\holderwb.txt

    Filesize

    3KB

    MD5

    f94dc819ca773f1e3cb27abbc9e7fa27

    SHA1

    9a7700efadc5ea09ab288544ef1e3cd876255086

    SHA256

    a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92

    SHA512

    72a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196

  • C:\Users\Admin\AppData\Roaming\Windows Update.exe

    Filesize

    1000KB

    MD5

    dbc8b3569046c9122415431ad4911cec

    SHA1

    acfaa25b229174d2c9189f1c8e38dccc7b5e5ff6

    SHA256

    5357401248b44ed57f3fe12fb604e47a3eba3e99111f7a5fb04b2385c386fb19

    SHA512

    23bd8691ede5ea92b161884d59aa6512f2ac23387b1078a03573b6d08cde01433ed19ccfb5ee67b5f147dbd8c9b6ad028d1d862868dfd3c13300b66d63c7f578

  • memory/452-69-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/452-71-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/452-70-0x0000000000470000-0x0000000000539000-memory.dmp

    Filesize

    804KB

  • memory/452-68-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/2192-24-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-8-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-7-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-38-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-4-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-6-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-10-0x00000000009F0000-0x0000000000A78000-memory.dmp

    Filesize

    544KB

  • memory/2192-12-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-25-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2192-11-0x00000000009F0000-0x0000000000A78000-memory.dmp

    Filesize

    544KB

  • memory/2924-50-0x0000000000A00000-0x0000000000A88000-memory.dmp

    Filesize

    544KB

  • memory/2924-48-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2924-61-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2924-72-0x0000000000400000-0x000000000051D000-memory.dmp

    Filesize

    1.1MB

  • memory/2928-42-0x0000000000400000-0x00000000004FF000-memory.dmp

    Filesize

    1020KB

  • memory/2928-39-0x0000000000400000-0x00000000004FF000-memory.dmp

    Filesize

    1020KB

  • memory/3884-0-0x00000000023B0000-0x00000000023B1000-memory.dmp

    Filesize

    4KB

  • memory/3884-13-0x0000000000400000-0x00000000004FF000-memory.dmp

    Filesize

    1020KB

  • memory/3884-1-0x0000000003F80000-0x0000000003F92000-memory.dmp

    Filesize

    72KB

  • memory/3884-3-0x0000000003FA0000-0x0000000003FA1000-memory.dmp

    Filesize

    4KB

  • memory/3884-2-0x0000000003F80000-0x0000000003F92000-memory.dmp

    Filesize

    72KB

  • memory/4892-74-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4892-75-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB

  • memory/4892-82-0x0000000000400000-0x0000000000458000-memory.dmp

    Filesize

    352KB