Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260911-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260911-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/10/2026, 23:46

General

  • Target
    2026-10-11_ff428b3b13f8e0b8a5f4cbe607f10b92_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
  • Size 1022KB
  • Sample261011-3sraqsdx6w
  • SHA256 a7c4784f3cb6565520c515d6514882b56d3fa9034a7a5b0ddd2db0e44225e793
  • 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 24 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • Drops file in System32 directory 15 IoCs
  • UPX packed file 6 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Windows directory 2 IoCs
  • Reads the TCP/IP host and domain name from the registry 1 TTPs 4 IoCs

    The configured hostname and DNS domain identify the machine and are commonly collected to profile a host before it reports in.

  • 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\2026-10-11_ff428b3b13f8e0b8a5f4cbe607f10b92_amadey_coinminer_cryptolocker_elex_smoke-loader_stealc_stop_tofsee.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-10-11_ff428b3b13f8e0b8a5f4cbe607f10b92_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
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4896
  • C:\Windows\Syswow64\87a39518
    C:\Windows\Syswow64\87a39518
    1⤵
    • Executes dropped EXE
    • Unexpected DNS network traffic destination
    • Drops file in System32 directory
    • Drops file in Windows directory
    • Reads the TCP/IP host and domain name from the registry
    • System Location Discovery: System Language Discovery
    • Modifies data under HKEY_USERS
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:4688
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:2132

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          87a39518

          • Path C:\Windows\SysWOW64\87a39518
          • Size 1022KB
          • SHA256 2ad7c229951a0beee821a371c8f927c944f6dce49ee2256a6f5e5935e31fa9da
          • MD5 SHA1 SHA512 SSDEEP TLSH

          memory/4688-3-0x00000000005C0000-0x000000000064C000-memory.dmp

          memory/4688-21-0x00000000005C0000-0x000000000064C000-memory.dmp

          memory/4688-46-0x00000000005C0000-0x000000000064C000-memory.dmp

          memory/4896-0-0x0000000000A80000-0x0000000000B0C000-memory.dmp

          memory/4896-20-0x0000000000A80000-0x0000000000B0C000-memory.dmp