Analysis

  • max time kernel
    149s
  • max time network
    157s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    16/05/2026, 03:45

General

  • Target
    2026-05-16_14ffb85f9cd3a021c9a3881ea09f0c6a_amadey_coinminer_cryptolocker_elex_glassworm_remcos_smok.exe
  • Size 2.5MB
  • Sample260516-ebbxqaax4s
  • SHA256 b4b0632e4ae76a09706d779173f1fa04dc8501f78b55a970e4dc33f2820befd8
  • 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 11 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\2026-05-16_14ffb85f9cd3a021c9a3881ea09f0c6a_amadey_coinminer_cryptolocker_elex_glassworm_remcos_smok.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-05-16_14ffb85f9cd3a021c9a3881ea09f0c6a_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:4580
  • C:\Windows\Syswow64\cbf90b8e
    C:\Windows\Syswow64\cbf90b8e
    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:4364

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        cbf90b8e

        • Path C:\Windows\SysWOW64\cbf90b8e
        • Size 2.5MB
        • SHA256 076a131718091067ad1bfa1071d78565060f0fff411f54ea61ffba32dc0be867
        • MD5 SHA1 SHA512 SSDEEP TLSH

        memory/4364-3-0x0000000000F20000-0x0000000000FAC000-memory.dmp

        memory/4364-11-0x0000000000F20000-0x0000000000FAC000-memory.dmp

        memory/4364-18-0x0000000000F20000-0x0000000000FAC000-memory.dmp

        memory/4580-0-0x0000000000350000-0x00000000003DC000-memory.dmp

        memory/4580-10-0x0000000000350000-0x00000000003DC000-memory.dmp