Overview

overview

10

Static

static

3

jaffacakes...sg.exe

windows10-2004-x64

10

jaffacakes...sg.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    06/10/2026, 15:39

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General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Agent.cssg.exe
  • Size 96KB
  • Sample261006-s34npsfd82
  • SHA256 93a9917e997d57c0327e9572b1b88e49d569cb7772166ce4f338710357c7b967
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoveryinstallerupx

Malware Config

Signatures

  • Modifies visibility of hidden/system files in Explorer 2 TTPs 1 IoCs
    defense_evasion
  • Deletes itself 1 TTPs 1 IoCs
    defense_evasion
  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 7 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 3 IoCs

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

    upx
  • Drops file in Program Files directory 13 IoCs
  • 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.

    discovery
  • NSIS installer 1 IoCs
    installer
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Agent.cssg.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Agent.cssg.exe"
    1⤵
    • Modifies visibility of hidden/system files in Explorer
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3468
    • C:\Program Files (x86)\Common Files\System\ado\myie.exe
      "C:\Program Files (x86)\Common Files\System\ado\myie.exe"
      2⤵
      • Executes dropped EXE
      • Drops file in Program Files directory
      • System Location Discovery: System Language Discovery
      • Modifies registry class
      PID:3388
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\system32\wscript.exe" "C:\Program Files (x86)\Messenger\messenger.kbb"
      2⤵
      • System Location Discovery: System Language Discovery
      PID:5800
    • C:\Users\Admin\AppData\Local\Temp\uninst.exe
      "C:\Users\Admin\AppData\Local\Temp\uninst.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:252
      • C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe
        "C:\Users\Admin\AppData\Local\Temp\~nsu.tmp\Au_.exe" _?=C:\Users\Admin\AppData\Local\Temp\
        3⤵
        • Deletes itself
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:480

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        myie.exe
        • Path C:\Program Files (x86)\Common Files\System\ado\myie.exe
        • Size 42KB
        • SHA256 affbc4b63aba5bf1af186e84c17d781deff45c5230fd768fec96c9531e6ed536
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        messenger.kbb
        • Path C:\Program Files (x86)\Messenger\messenger.kbb
        • Size 8KB
        • SHA256 0dfc3e29995314409e465945bcb67ac30d7352c67c8943a749ccd340dccdac39
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        System.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsu59EF.tmp\System.dll
        • Size 11KB
        • SHA256 a545d4528ebdcb87b03c5b6e19c18cf8e06932532d48ecd75b3f80aff90f04bb
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsExec.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsu59EF.tmp\nsExec.dll
        • Size 6KB
        • SHA256 ab65faa21eb0449a457f88be8690b2a7e483b22d30a3f66ea60c0143b6f1fda8
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        nsProcess.dll
        • Path C:\Users\Admin\AppData\Local\Temp\nsu59EF.tmp\nsProcess.dll
        • Size 4KB
        • SHA256 95fe9d92512ff2318cc2520311ef9145b2cee01209ab0e1b6e45c7ce1d4d0e89
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        sogou.ini
        • Path C:\Users\Admin\AppData\Local\Temp\sogou.ini
        • Size 107B
        • SHA256 eb60c2aeeaf885bac2fa8a26bb966b547fa7a9be5836515a20d1d8b4f546ec6e
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        uninst.exe
        • Path C:\Users\Admin\AppData\Local\Temp\uninst.exe
        • Size 34KB
        • SHA256 2f9d21602d9b23bfec016435c96b7cc756ddf80ebf7135b72024cb03dc9217bd
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/3388-28-0x0000000000400000-0x0000000000424000-memory.dmp
        Download

        memory/3388-36-0x0000000000400000-0x0000000000424000-memory.dmp
        Download