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
    04/08/2026, 09:42

General

  • Target
    2026-08-03_cb042f2eba6baa57f459059e930638ed_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1.7MB
  • Sample260804-lpjcaack9s
  • SHA256 8d54731adf3f5ed9dc0dc3dcf6db9424c3e1057e6952c8dea65b417f9cc5b68e
  • MD5 SHA1 SHA512 SSDEEP TLSH

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 17 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
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-08-03_cb042f2eba6baa57f459059e930638ed_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-08-03_cb042f2eba6baa57f459059e930638ed_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_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:4292
  • C:\Windows\Syswow64\c81a2184
    C:\Windows\Syswow64\c81a2184
    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
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4988

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        c81a2184

        • Path C:\Windows\SysWOW64\c81a2184
        • Size 1.7MB
        • SHA256 ae27a6dd20531f7b5e64dfa717b3ccf6873e7aa06c10c31113369f2bcf606b8b
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4292-0-0x00000000001A0000-0x000000000022C000-memory.dmp

        memory/4292-12-0x00000000001A0000-0x000000000022C000-memory.dmp

        memory/4988-3-0x00000000001E0000-0x000000000026C000-memory.dmp

        memory/4988-13-0x00000000001E0000-0x000000000026C000-memory.dmp

        memory/4988-35-0x00000000001E0000-0x000000000026C000-memory.dmp