Overview

overview

10

Static

static

10

2026-09-28...op.exe

windows10-2004-x64

9

2026-09-28...op.exe

windows11-ltsc_2024-x64

9

Analysis

  • max time kernel
    150s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20260911-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20260911-enlocale:en-usos:windows10-2004-x64systemwindows
  • submitted
    28/09/2026, 12:11

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General

  • Target
    2026-09-28_c243ef7367a80350f4659171d5ecd1c8_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
  • Size 832KB
  • Sample260928-pcltest1bt
  • SHA256 5cf4d51e5a34ce5b36e391ac911bdb81ceac0c4f420b237c3d8c67d7812d7fcd
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
9/10
discoveryupx

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 22 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.

    upx
  • 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.

    discovery
  • 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.

    discovery
  • 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\2026-09-28_c243ef7367a80350f4659171d5ecd1c8_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-28_c243ef7367a80350f4659171d5ecd1c8_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.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:1260
  • C:\Windows\Syswow64\66861cc4
    C:\Windows\Syswow64\66861cc4
    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:2612

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        66861cc4
        • Path C:\Windows\SysWOW64\66861cc4
        • Size 832KB
        • SHA256 060c6289fcdace602f4a584b203040cf6e65e2307b72c03a9b4c516ea5d55010
        • MD5 SHA1 SHA512 SSDEEP TLSH
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        memory/1260-0-0x00000000009E0000-0x0000000000A6C000-memory.dmp
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        memory/1260-18-0x00000000009E0000-0x0000000000A6C000-memory.dmp
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        memory/2612-4-0x0000000000A50000-0x0000000000ADC000-memory.dmp
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        memory/2612-19-0x0000000000A50000-0x0000000000ADC000-memory.dmp
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        memory/2612-38-0x0000000000A50000-0x0000000000ADC000-memory.dmp
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