Overview

overview

10

Static

static

5

OOLU256677...29.exe

windows10-2004-x64

10

OOLU256677...29.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    149s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20251016-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20251016-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/12/2025, 14:09

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General

  • Target
    OOLU2566777430000739829.exe
  • Size 1.1MB
  • Sample251201-rf848ssnbl
  • SHA256 41a7ea4325b76d7cf721b86c2cf60ccb0ee2b9773be7ba8aa2763ebf18335805
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
discoverydarkcloudstealerupx

Malware Config

Signatures

  • DarkCloud

    An information stealer written in Visual Basic.

    stealerdarkcloud
  • Darkcloud family
    darkcloud
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • UPX packed file 2 IoCs

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

    upx
  • 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
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\OOLU2566777430000739829.exe
    "C:\Users\Admin\AppData\Local\Temp\OOLU2566777430000739829.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:3404
    • C:\Windows\SysWOW64\svchost.exe
      "C:\Users\Admin\AppData\Local\Temp\OOLU2566777430000739829.exe"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      PID:444

Network

        MITRE ATT&CK Enterprise v16

        Replay Monitor

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        Downloads

        memory/444-11-0x0000000000400000-0x0000000000476000-memory.dmp
        Download

        memory/444-13-0x0000000000400000-0x0000000000476000-memory.dmp
        Download

        memory/444-18-0x0000000000400000-0x0000000000476000-memory.dmp
        Download

        memory/3404-0-0x0000000000140000-0x00000000003A7000-memory.dmp
        Download

        memory/3404-10-0x0000000001DC0000-0x0000000001DC4000-memory.dmp
        Download

        memory/3404-17-0x0000000000140000-0x00000000003A7000-memory.dmp
        Download