Analysis

  • max time kernel
    150s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    02/08/2026, 22:23

General

  • Target
    tims external.exe
  • Size 3.5MB
  • Sample260802-2a2s3sysaz
  • SHA256 390f9565d6870bf4113e892631ab3b031a667ae925de977cb4caaae5220f73c3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Skuld stealer

    An info stealer written in Go lang.

  • Detects SkuldStealer 3 IoCs
  • Looks up external IP address via web service 1 TTPs 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • UPX packed file 4 IoCs

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

  • GoLang User-Agent 1 IoCs

    Uses default user-agent string defined by GoLang HTTP packages.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 43 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\tims external.exe
    "C:\Users\Admin\AppData\Local\Temp\tims external.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3632
    • C:\Windows\system32\attrib.exe
      attrib +h +s "C:\Users\Admin\AppData\Local\Temp\tims external.exe"
      2⤵
      • Views/modifies file attributes
      PID:4904
    • C:\Windows\System32\Wbem\wmic.exe
      wmic csproduct get UUID
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3648

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/3632-0-0x0000000000C10000-0x0000000001608000-memory.dmp

        memory/3632-1-0x0000000000C10000-0x0000000001608000-memory.dmp

        memory/3632-2-0x0000000000C10000-0x0000000001608000-memory.dmp

        memory/3632-3-0x0000000000C10000-0x0000000001608000-memory.dmp