Overview

overview

7

Static

static

3

jaffacakes....z.exe

windows10-2004-x64

7

jaffacakes....z.exe

windows11-ltsc_2024-x64

7

Analysis

  • max time kernel
    148s
  • max time network
    146s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    09/10/2026, 20:14

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General

  • Target
    jaffacakes118_Trojan-Dropper.Win32.Small.z.exe
  • Size 29KB
  • Sample261009-yz2b3aeb88
  • SHA256 e848e22f988ed416f8fcbae27f57cd804768127831de8ac9856ca47de0b30a63
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
7/10
discoverypersistenceupx

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • UPX packed file 4 IoCs

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

    upx
  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 2 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

    discovery
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

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

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Small.z.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_Trojan-Dropper.Win32.Small.z.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:3224
    • C:\Users\Admin\AppData\Local\Temp\s34o..exe
      C:\Users\Admin\AppData\Local\Temp\\s34o..exe
      2⤵
      • Executes dropped EXE
      • Adds Run key to start application
      • Drops file in Windows directory
      • Reads the TCP/IP host and domain name from the registry
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:856
  • C:\Windows\explorer.exe
    C:\Windows\Explorer.exe
    1⤵
    • Modifies registry class
    PID:4136

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        s34o..exe
        • Path C:\Users\Admin\AppData\Local\Temp\s34o..exe
        • Size 24KB
        • SHA256 7f7c40280d212a57218d8193fd81d98458bc8714381f162ecf908452e360f9d9
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/856-5-0x0000000000400000-0x0000000000416000-memory.dmp
        Download

        memory/856-8-0x0000000000400000-0x0000000000416000-memory.dmp
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        memory/856-9-0x0000000000400000-0x0000000000416000-memory.dmp
        Download

        memory/3224-0-0x0000000000400000-0x0000000000404000-memory.dmp
        Download

        memory/3224-7-0x0000000000400000-0x0000000000404000-memory.dmp
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