Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260130-en
  • resource tags

    arch:x64arch:x86image:win11-20260130-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    03/05/2026, 03:31

General

  • Target
    2026-05-03_f1ddf52ea649427cd8ae551c6cd1f5f6_amadey_coinminer_cryptolocker_elex_glassworm_remcos_smok.exe
  • Size 2.5MB
  • Sample260503-d27xeaex2q
  • SHA256 4a4a07e4e933504d8a8d964051576f69c52d5ffc5a79ac49eaf0cadbfe8b6aff
  • 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) 6 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 5 IoCs
  • UPX packed file 6 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 8 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-03_f1ddf52ea649427cd8ae551c6cd1f5f6_amadey_coinminer_cryptolocker_elex_glassworm_remcos_smok.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-03_f1ddf52ea649427cd8ae551c6cd1f5f6_amadey_coinminer_cryptolocker_elex_glassworm_remcos_smok.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:2692
  • C:\Windows\Syswow64\fb25b95c
    C:\Windows\Syswow64\fb25b95c
    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:2376

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        fb25b95c

        • Path C:\Windows\SysWOW64\fb25b95c
        • Size 2.5MB
        • SHA256 e2c65e57fb56376b8b4a7d3a0fc254f195673a3411c5b027ae41038dde323cbc
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/2376-4-0x0000000000710000-0x000000000079C000-memory.dmp

        memory/2376-11-0x0000000000710000-0x000000000079C000-memory.dmp

        memory/2376-24-0x0000000000710000-0x000000000079C000-memory.dmp

        memory/2692-0-0x00000000000C0000-0x000000000014C000-memory.dmp

        memory/2692-10-0x00000000000C0000-0x000000000014C000-memory.dmp