Analysis

  • max time kernel
    150s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-04-2024 08:21

General

  • Target

    fedaa9c484568d57629fa30f89a01c86_JaffaCakes118.exe

  • Size

    272KB

  • MD5

    fedaa9c484568d57629fa30f89a01c86

  • SHA1

    68cb13fea6009eebd1d4a4d6dcb2786e22a00429

  • SHA256

    127866f2c16eda683153d2a9088cd545f0cd541e4955effb220e79baa4461184

  • SHA512

    a442c7231960a85ae10b4ab286e042536c76397d2a0cfb1866d1d3b7367cd88d06cd9f4d568f8a0999c87e8758753aae2dd54ec9937b6444abe38afc75793a41

  • SSDEEP

    6144:ce34wtB75+ZPPfnE2Qyn20UlwkQKrPNHqdtj75+ZPPfnE2Qyn20U:jtBF+ZPPfnEUnFKrPQjF+ZPPfnEUn

Malware Config

Signatures

  • ACProtect 1.3x - 1.4x DLL software 2 IoCs

    Detects file using ACProtect software.

  • 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 1 IoCs
  • Loads dropped DLL 11 IoCs
  • UPX packed file 2 IoCs

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

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Installs/modifies Browser Helper Object 2 TTPs 3 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Suspicious use of SetThreadContext 1 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 64 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 64 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\fedaa9c484568d57629fa30f89a01c86_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\fedaa9c484568d57629fa30f89a01c86_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1892
    • C:\Windows\SysWOW64\regsvr32.exe
      C:\Windows\system32\regsvr32.exe /s "C:\Program Files (x86)\SmartTool\SmartTool.dll"
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:4884
    • C:\Program Files (x86)\SmartTool\SmartTool.exe
      "C:\Program Files (x86)\SmartTool\SmartTool.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\Windows\SysWOW64\regsvr32.exe
        regsvr32 /s "C:\Program Files (x86)\SmartTool\SmartTool.dll"
        3⤵
        • Loads dropped DLL
        • Installs/modifies Browser Helper Object
        • Modifies registry class
        PID:4372
    • C:\Windows\SysWOW64\explorer.exe
      C:\Windows\system32\explorer.exe
      2⤵
      • Deletes itself
      PID:536

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files (x86)\SmartTool\SmartTool.dll

    Filesize

    106KB

    MD5

    c3fe27e59dba45b00172fb0e556951cb

    SHA1

    39cd86014029a7d1080250650cb79eec6e280d19

    SHA256

    5caad6897762c1781d9fe1227b068a940a50ffca7cb4b563116a5b3f14f4a45b

    SHA512

    c7511156ebaea6de4f06961d881389f67843e9e6550dd05de03d500b59d1beebe5e2808be85e2e67be91780d53013ef0ff29937cbb7c6ebc2eecba4587448ac1

  • C:\Program Files (x86)\SmartTool\SmartTool.exe

    Filesize

    42KB

    MD5

    d1859658605c11d217cb9d3e0540ca61

    SHA1

    1e2cb13bdbe6c6e6568a127258d7df38e67e26d5

    SHA256

    7b9fd7ea1c9dc710f67d3066369f51bf5fc4002062b356a2f53038b02c79fce0

    SHA512

    5b144619b2b4d97724fcbb850c8041f020f1b44494121ce42a8949280c8570fb8cd9213e7d467eb695364c6ae31e8b83e08e609e55473c933e0828fed3ad052f

  • C:\Program Files (x86)\SmartTool\adc.acc

    Filesize

    28KB

    MD5

    90fb210a39450f5cc40685f1af8e8cba

    SHA1

    8a4d4b84c5a8de91c4123dcb1f097daea2e8344f

    SHA256

    3c20fa6446d636d46c9e049887437e794787574969e0b7818571da7169543f11

    SHA512

    522769d16dcc161e63b796c82ce6b78e3015f9836987c9a22222858b422160acda6516fc320e28dd103df8bafce5eac2c1209d9af0bec9a8adfbb889086a60d0

  • C:\Users\Admin\AppData\Local\Temp\nsz3876.tmp\IpConfig.dll

    Filesize

    114KB

    MD5

    a3ed6f7ea493b9644125d494fbf9a1e6

    SHA1

    ebeee67fb0b5b3302c69f47c5e7fca62e1a809d8

    SHA256

    ec0f85f8a9d6b77081ba0103f967ef6705b547bf27bcd866d77ac909d21a1e08

    SHA512

    7099e1bc78ba5727661aa49f75523126563a5ebccdff10cabf868ce5335821118384825f037fbf1408c416c0212aa702a5974bc54d1b63c9d0bcade140f9aae1

  • C:\Users\Admin\AppData\Local\Temp\nsz3876.tmp\NSISdl.dll

    Filesize

    14KB

    MD5

    a5f8399a743ab7f9c88c645c35b1ebb5

    SHA1

    168f3c158913b0367bf79fa413357fbe97018191

    SHA256

    dacc88a12d3ba438fdae3535dc7a5a1d389bce13adc993706424874a782e51c9

    SHA512

    824e567f5211bf09c7912537c7836d761b0934207612808e9a191f980375c6a97383dbc6b4a7121c6b5f508cbfd7542a781d6b6b196ca24841f73892eec5e977

  • C:\Users\Admin\AppData\Local\Temp\nsz3876.tmp\SelfDel.dll

    Filesize

    4KB

    MD5

    7cff7fe2caea5184d98c147e7e263132

    SHA1

    21f39d3d0dd5f7198d67ef30e95d10ae3460093e

    SHA256

    281c39b733579e031c62bdd247b41543ece1fe3bd6eda26fc8ad474b10f33101

    SHA512

    fb1161b8571d1d0c67e2df0d571b08f5e7a73f81409aed847344154d02406910629181bcce4e18e998ec472f51a6a1b40d956a010abdd10e850413aafa87808a

  • C:\Users\Admin\AppData\Local\Temp\nsz3876.tmp\UAC.dll

    Filesize

    13KB

    MD5

    29858669d7da388d1e62b4fd5337af12

    SHA1

    756b94898429a9025a04ae227f060952f1149a5f

    SHA256

    c24c005daa7f5578c4372b38d1be6be5e27ef3ba2cdb9b67fee15cac406eba62

    SHA512

    6f4d538f2fe0681f357bab73f633943c539ddc1451efa1d1bb76d70bb47aa68a05849e36ae405cc4664598a8194227fa7053de6dbce7d6c52a20301293b3c85f

  • C:\Users\Admin\AppData\Local\Temp\nsz3876.tmp\nsProcess.dll

    Filesize

    4KB

    MD5

    05450face243b3a7472407b999b03a72

    SHA1

    ffd88af2e338ae606c444390f7eaaf5f4aef2cd9

    SHA256

    95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89

    SHA512

    f4cbe30166aff20a226a7150d93a876873ba699d80d7e9f46f32a9b4753fa7966c3113a3124340b39ca67a13205463a413e740e541e742903e3f89af5a53ad3b

  • memory/1892-32-0x0000000002F50000-0x0000000002F76000-memory.dmp

    Filesize

    152KB

  • memory/1892-53-0x0000000073F00000-0x0000000073F09000-memory.dmp

    Filesize

    36KB