Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    27/07/2026, 20:02

General

  • Target
    2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
  • Size 1.4MB
  • Sample260727-ysc1wsda42
  • SHA256 b7bed6ff5e0a3a5ee11bb9cb3dc5aecdc48e4bd9a3122183ca9d9c06366f8db2
  • 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) 8 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 13 IoCs
  • UPX packed file 8 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\2026-07-27_7e21a2000fed50808d96551c17ad0541_coinminer_cryptolocker_elex_mafia_stealc_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-07-27_7e21a2000fed50808d96551c17ad0541_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:4088
  • C:\Windows\Syswow64\19661990
    C:\Windows\Syswow64\19661990
    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:3256

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        19661990

        • Path C:\Windows\SysWOW64\19661990
        • Size 1.4MB
        • SHA256 0c81d73b9dcdb3a66d216efc316b02e947d16b1bdec14c2ffaeea543373bd3dc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/3256-3-0x0000000000AD0000-0x0000000000B59000-memory.dmp

        memory/3256-12-0x0000000000AD0000-0x0000000000B59000-memory.dmp

        memory/3256-26-0x0000000000AD0000-0x0000000000B59000-memory.dmp

        memory/4088-0-0x0000000000BC0000-0x0000000000C49000-memory.dmp

        memory/4088-10-0x0000000000BC0000-0x0000000000C49000-memory.dmp

        memory/4088-25-0x0000000000BC0000-0x0000000000C49000-memory.dmp

        memory/4088-47-0x0000000000BC0000-0x0000000000C49000-memory.dmp