Analysis

  • max time kernel
    148s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    30/09/2026, 22:32

General

  • Target
    2026-09-29_309b2ce035df8476d92b2f447f120782_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260930-2f9qwatcna
  • SHA256 eb2326bc2369025eb278cb0ef7f9e84512b260a44ae9ae1e021d93199ac96bc3
  • MD5 SHA1 SHA512 SSDEEP TLSH

Malware Config

Signatures

  • Family: Stealc

    Stealc is an infostealer written in C++.

  • Detects Stealc stealer Version 3 1 IoCs
  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • UPX dump on OEP (original entry point) 6 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 18 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 15 IoCs
  • UPX packed file 6 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

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

  • 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.

  • Modifies data under HKEY_USERS 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-29_309b2ce035df8476d92b2f447f120782_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-29_309b2ce035df8476d92b2f447f120782_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • 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
    • Suspicious use of AdjustPrivilegeToken
    PID:5096
  • C:\Windows\Syswow64\79a4e472
    C:\Windows\Syswow64\79a4e472
    1⤵
    • Executes dropped EXE
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4688
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4648

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          79a4e472

          • Path C:\Windows\SysWOW64\79a4e472
          • Size 1.7MB
          • SHA256 c71a7cca73a4a4606802fca5c6eced9555126a6a635601ad56802c54cea4af7e
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4688-3-0x0000000000AB0000-0x0000000000B3C000-memory.dmp

          memory/4688-21-0x0000000000AB0000-0x0000000000B3C000-memory.dmp

          memory/4688-42-0x0000000000AB0000-0x0000000000B3C000-memory.dmp

          memory/5096-0-0x0000000000160000-0x00000000001EC000-memory.dmp

          memory/5096-20-0x0000000000160000-0x00000000001EC000-memory.dmp