Analysis

  • max time kernel
    148s
  • max time network
    148s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    24/08/2026, 16:55

General

  • Target
    2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
  • Size 1.4MB
  • Sample260824-vfas8a1clc
  • SHA256 72f10f4eb3c832761e59b1224b52bf66041119d59fa7062fab82cc0027c8c74e
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • UPX dump on OEP (original entry point) 11 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 6 IoCs

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

  • Drops file in System32 directory 13 IoCs
  • UPX packed file 11 IoCs

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

  • Drops file in Windows directory 2 IoCs
  • 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\2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-23_135e32f719c1b301a84c13a10a4ec945_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe"
    1⤵
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4384
  • C:\Windows\Syswow64\a5d33468
    C:\Windows\Syswow64\a5d33468
    1⤵
    • Executes dropped EXE
    • Drops file in System32 directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2800

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        a5d33468

        • Path C:\Windows\SysWOW64\a5d33468
        • Size 1.4MB
        • SHA256 32a72a82c5ee69f3d71bbdd1c44e4344dea5f30395c28aba16d247240f5bc339
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2800-3-0x00000000009B0000-0x0000000000A39000-memory.dmp

        memory/2800-12-0x00000000009B0000-0x0000000000A39000-memory.dmp

        memory/2800-22-0x00000000009B0000-0x0000000000A39000-memory.dmp

        memory/2800-38-0x00000000009B0000-0x0000000000A39000-memory.dmp

        memory/2800-40-0x00000000009B0000-0x0000000000A39000-memory.dmp

        memory/4384-0-0x0000000000640000-0x00000000006C9000-memory.dmp

        memory/4384-10-0x0000000000640000-0x00000000006C9000-memory.dmp

        memory/4384-37-0x0000000000640000-0x00000000006C9000-memory.dmp

        memory/4384-46-0x0000000000640000-0x00000000006C9000-memory.dmp

        memory/4384-51-0x0000000000640000-0x00000000006C9000-memory.dmp