Analysis

  • max time kernel
    149s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260513-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260513-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    29/05/2026, 12:33

General

  • Target
    2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
  • Size 832KB
  • Sample260529-prhejsbx4y
  • SHA256 fad66ca4f7ef8db59c441f4094ec0eed5f5817d9bcc55bd48984ed040a7af833
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10

Malware Config

Signatures

  • Custom signature
    Detection of CryptoLocker Variants 1 IoCs
  • Custom signature
    Detection of Cryptolocker Samples 1 IoCs
  • Custom signature
    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 13 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 9 IoCs
  • Suspicious behavior: EnumeratesProcesses 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-29_b285d792da52be67cc74025435a3b6d2_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.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:1960
  • C:\Windows\Syswow64\79b46459
    C:\Windows\Syswow64\79b46459
    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:1096

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        79b46459

        • Path C:\Windows\SysWOW64\79b46459
        • Size 832KB
        • SHA256 fc63359345f309a20b5a253bf473e197b8f212d7a47d29600b306e35da09fa53
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/1096-4-0x0000000000470000-0x00000000004FC000-memory.dmp

        memory/1096-17-0x0000000000470000-0x00000000004FC000-memory.dmp

        memory/1096-25-0x0000000000470000-0x00000000004FC000-memory.dmp

        memory/1960-0-0x0000000000630000-0x00000000006BC000-memory.dmp

        memory/1960-16-0x0000000000630000-0x00000000006BC000-memory.dmp