Overview

overview

10

Static

static

7

053ecfe44a...18.exe

windows7-x64

10

053ecfe44a...18.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/06/2024, 10:42

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General

  • Target
    053ecfe44a3f026cd57ca947ba0cbf0a_JaffaCakes118.exe
  • Size 37KB
  • Sample240620-mr4xfashrb
  • SHA256 e22e081c5e641cbc0021100f184db29fa1cb0d55e7ced2ad1e9f9b5930a4ff62
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
adwarepersistencestealerupx

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
    persistence
  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Deletes itself 1 IoCs
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 1 IoCs
  • UPX packed file 5 IoCs

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

    upx
  • Installs/modifies Browser Helper Object 2 TTPs 2 IoCs

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

    stealeradware
  • Drops file in System32 directory 11 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 46 IoCs
  • Suspicious behavior: EnumeratesProcesses 38 IoCs
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 7 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\053ecfe44a3f026cd57ca947ba0cbf0a_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\053ecfe44a3f026cd57ca947ba0cbf0a_JaffaCakes118.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Checks computer location settings
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2248
    • C:\Windows\SysWOW64\sschost.exe
      "C:\Windows\system32\sschost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:4764
    • C:\Windows\SysWOW64\regsvr32.exe
      "C:\Windows\System32\regsvr32.exe" /s /c C:\Windows\system32\kavsus.dll
      2⤵
      • Loads dropped DLL
      • Installs/modifies Browser Helper Object
      • Modifies registry class
      PID:1108
    • C:\Windows\SysWOW64\kaceyl.exe
      "C:\Windows\system32\kaceyl.exe"
      2⤵
      • Checks computer location settings
      • Deletes itself
      • Executes dropped EXE
      • Drops file in System32 directory
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4792
      • C:\Windows\SysWOW64\sochost.exe
        "C:\Windows\system32\sochost.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4552
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --field-trial-handle=3960,i,6166776566165096562,4582328833313060853,262144 --variations-seed-version --mojo-platform-channel-handle=3804 /prefetch:8
    1⤵
      PID:4144

    Network

          MITRE ATT&CK Enterprise v15

          Replay Monitor

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          Downloads

          kaceyl.exe
          • Path C:\Windows\SysWOW64\kaceyl.exe
          • Size 20KB
          • SHA256 f94890e9c92b55944e7e81fdc4f7f701c398dba0fd5a7298d959a4f07e9df2c7
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          kavsus.dll
          • Path C:\Windows\SysWOW64\kavsus.dll
          • Size 32KB
          • SHA256 63eb609bda077a86601d6982561cbb7d0b0422cfe9a82d2b2e15247adc0ffce2
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          sochost.exe
          • Path C:\Windows\SysWOW64\sochost.exe
          • Size 37KB
          • SHA256 e22e081c5e641cbc0021100f184db29fa1cb0d55e7ced2ad1e9f9b5930a4ff62
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          sschost.exe
          • Path C:\Windows\SysWOW64\sschost.exe
          • Size 20KB
          • SHA256 89fc8a546f5551f27d5e6b5216555f967d387011a92f0cfd9400b5c58d208721
          • MD5 SHA1 SHA512 SSDEEP
          Submit Download

          ssdtt.sys
          • Path C:\Windows\SysWOW64\ssdtt.sys
          • Size 2KB
          • SHA256 afd36c473f8f7c83da46f27d86fae04beef761a3321bdd5a731afddfd4a2e546
          • MD5 SHA1 SHA512
          Submit Download

          winsys.ini
          • Path C:\Windows\SysWOW64\winsys.ini
          • Size 105B
          • SHA256 b065b1bd208bd93bbb54b6f3f06ea14366f5fd6e4b420170bdf1deecb95732b4
          • MD5 SHA1 SHA512
          Submit Download

          winsys.ini
          • Path C:\Windows\SysWOW64\winsys.ini
          • Size 26B
          • SHA256 14776c2d9c1446833752ec1c0686cc74bee4c3bd3036b3ad7cf51249ebe381ab
          • MD5 SHA1 SHA512
          Submit Download

          memory/2248-0-0x0000000000400000-0x000000000042D000-memory.dmp
          Download

          memory/2248-1-0x0000000000400000-0x000000000042D000-memory.dmp
          Download

          memory/2248-31-0x0000000000400000-0x000000000042D000-memory.dmp
          Download

          memory/4552-49-0x0000000000400000-0x000000000042D000-memory.dmp
          Download