Overview

overview

10

Static

static

10

2026-09-26...op.exe

windows10-2004-x64

9

2026-09-26...op.exe

windows11-ltsc_2024-x64

9

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
    26/09/2026, 21:58

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General

  • Target
    2026-09-26_5f4ff5571988ec1b6e3e53944568f693_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
  • Size 832KB
  • Sample260926-1vnarasdlf
  • SHA256 cca7a86c70fc6e00450cf971be76bd9ab20c641cfbc4d9b68423b8a77b840beb
  • 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 26 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 22 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2026-09-26_5f4ff5571988ec1b6e3e53944568f693_amadey_coinminer_cryptolocker_elex_smoke-loader_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2026-09-26_5f4ff5571988ec1b6e3e53944568f693_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:5960
  • C:\Windows\Syswow64\71a65c59
    C:\Windows\Syswow64\71a65c59
    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:5024

Network

        MITRE ATT&CK Enterprise v16

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        Downloads

        71a65c59
        • Path C:\Windows\SysWOW64\71a65c59
        • Size 832KB
        • SHA256 f55ae87c877cfa8a81e88bd5cb6607476603a1a12d34077d48bf4b330153ca69
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        memory/5024-4-0x0000000000700000-0x000000000078C000-memory.dmp
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        memory/5024-19-0x0000000000700000-0x000000000078C000-memory.dmp
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        memory/5024-44-0x0000000000700000-0x000000000078C000-memory.dmp
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        memory/5960-0-0x00000000004F0000-0x000000000057C000-memory.dmp
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        memory/5960-18-0x00000000004F0000-0x000000000057C000-memory.dmp
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