Overview

overview

10

Static

static

10

2026-09-20...ee.exe

windows10-2004-x64

10

2026-09-20...ee.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    150s
  • 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
    20/09/2026, 22:50

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General

  • Target
    2026-09-20_ed94e871c093d661f32b43d34416e687_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
  • Size 768KB
  • Sample260920-2skbradf93
  • SHA256 1abab9a4898a09cc04d7f6489e101ee04a36cfd0be70c8f5c3d4f1fe54728780
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
discoverystealcstealerupx

Malware Config

Signatures

  • Family: Stealc

    Stealc is an infostealer written in C++.

    stealerstealc
  • Detects Stealc stealer Version 3 4 IoCs
  • Detection of CryptoLocker Variants 1 IoCs
  • Detection of Cryptolocker Samples 1 IoCs
  • UPX dump on OEP (original entry point) 9 IoCs
  • Executes dropped EXE 1 IoCs
  • Unexpected DNS network traffic destination 4 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 9 IoCs

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

    upx
  • 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.

    discovery
  • 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\2026-09-20_ed94e871c093d661f32b43d34416e687_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-20_ed94e871c093d661f32b43d34416e687_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:560
  • C:\Windows\Syswow64\5a8faad0
    C:\Windows\Syswow64\5a8faad0
    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:5108

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        5a8faad0
        • Path C:\Windows\SysWOW64\5a8faad0
        • Size 768KB
        • SHA256 6f800b4fc575a24c828b97ca369bad451dd9887676f6f454e778dd7c85d76cf1
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/560-0-0x00000000001F0000-0x0000000000279000-memory.dmp
        Download

        memory/560-10-0x00000000001F0000-0x0000000000279000-memory.dmp
        Download

        memory/560-33-0x00000000001F0000-0x0000000000279000-memory.dmp
        Download

        memory/560-50-0x00000000001F0000-0x0000000000279000-memory.dmp
        Download

        memory/560-56-0x00000000001F0000-0x0000000000279000-memory.dmp
        Download

        memory/5108-3-0x00000000002A0000-0x0000000000329000-memory.dmp
        Download

        memory/5108-12-0x00000000002A0000-0x0000000000329000-memory.dmp
        Download

        memory/5108-34-0x00000000002A0000-0x0000000000329000-memory.dmp
        Download