Overview

overview

10

Static

static

3

jaffacakes...41.exe

windows10-2004-x64

10

jaffacakes...41.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    10/09/2026, 04:06

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General

  • Target
    jaffacakes118_TeamViewer 7.0.12541.exe
  • Size 21.0MB
  • Sample260910-en8gfsfl2y
  • SHA256 c10ebc0acc5ff0eed9742fa99b4208dde4d60b16f31a5f0a1521bf9828a6d129
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoveryexecutionisrstealerstealertrojan

Malware Config

Signatures

  • Family: ISR Stealer

    ISR Stealer is a modified version of Hackhound Stealer written in visual basic.

    trojanstealerisrstealer
  • ISR Stealer payload 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Executes a command shell one-liner 1 TTPs 1 IoCs

    Execution of a cmd.exe one-liner (/c "close" or /k "keep") is a common script/loader stage.

    execution
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

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

    discovery
  • System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

    Adversaries may check for Internet connectivity on compromised systems.

    discovery
  • Runs ping.exe 1 TTPs 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\jaffacakes118_TeamViewer 7.0.12541.exe
    "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_TeamViewer 7.0.12541.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4008
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
        PID:3312
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /C ping 1.1.1.1 -n 1 -w 1000 > Nul & Del "C:\Users\Admin\AppData\Local\Temp\jaffacakes118_TeamViewer 7.0.12541.exe"
        2⤵
        • Executes a command shell one-liner
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Internet Connection Discovery
        • Suspicious use of WriteProcessMemory
        PID:4444
        • C:\Windows\SysWOW64\PING.EXE
          ping 1.1.1.1 -n 1 -w 1000
          3⤵
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Internet Connection Discovery
          • Runs ping.exe
          PID:1596

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          memory/3312-2-0x0000000000400000-0x0000000000435000-memory.dmp
          Download

          memory/4008-0-0x00000000014F0000-0x0000000001500000-memory.dmp
          Download

          memory/4008-1-0x00000000745F2000-0x00000000745F4000-memory.dmp
          Download