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Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20/02/2025, 14:23

General

  • Target

    autoinstall dll @powergirlso2.exe

  • Size

    2.0MB

  • MD5

    390e8cf06fa3eb9ebf46ca2498bbe0a7

  • SHA1

    cc2ce83fd17f26e8889c94263624b98cd46254d4

  • SHA256

    0ba3f53dc303731f8060b81fecfd87026b55052488853f4df228255eeba35a8d

  • SHA512

    821d13b2d099736bc9f410ad1138d3bf6c09e2ef0ae93259b937de1b0652eb968a4f097c26006a75f94548ee237989464f5620b86116dc9654fef7e49452d633

  • SSDEEP

    24576:xkBGRu7kCvNuLJHCUgGZJkQqRX7usVzRxaiKwr/8jh80trwEuepKunr:6BerzgpKW/8jh86UEke

Malware Config

Extracted

Family

asyncrat

Botnet

Default

C2

RC7-41750.portmap.host:41750

Attributes
  • delay

    1

  • install

    false

  • install_folder

    %AppData%

aes.plain

Signatures

  • AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

  • Asyncrat family
  • Stealerium

    An open source info stealer written in C# first seen in May 2022.

  • Stealerium family
  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Looks up geolocation information via web service

    Uses a legitimate geolocation service to find the infected system's geolocation info.

  • Suspicious use of SetThreadContext 1 IoCs
  • Browser Information Discovery 1 TTPs

    Enumerate browser information.

  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 6 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • System Location Discovery: System Language Discovery 1 TTPs 11 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • System Network Configuration Discovery: Wi-Fi Discovery 1 TTPs 2 IoCs

    Adversaries may search for information about Wi-Fi networks, such as network names and passwords, on compromised systems.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 35 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\autoinstall dll @powergirlso2.exe
    "C:\Users\Admin\AppData\Local\Temp\autoinstall dll @powergirlso2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4444
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\cvtres.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • System Location Discovery: System Language Discovery
      • Checks processor information in registry
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:4704
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show profile | findstr All
        3⤵
        • System Location Discovery: System Language Discovery
        • System Network Configuration Discovery: Wi-Fi Discovery
        • Suspicious use of WriteProcessMemory
        PID:4644
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4680
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show profile
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          • System Network Configuration Discovery: Wi-Fi Discovery
          PID:4800
        • C:\Windows\SysWOW64\findstr.exe
          findstr All
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4464
      • C:\Windows\SysWOW64\cmd.exe
        "cmd.exe" /C chcp 65001 && netsh wlan show networks mode=bssid
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:728
        • C:\Windows\SysWOW64\chcp.com
          chcp 65001
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1696
        • C:\Windows\SysWOW64\netsh.exe
          netsh wlan show networks mode=bssid
          4⤵
          • Event Triggered Execution: Netsh Helper DLL
          • System Location Discovery: System Language Discovery
          PID:3900
    • C:\Windows\SysWOW64\cmd.exe
      "cmd" /c timeout /t 1 && DEL /f autoinstall dll @powergirlso2.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:228
      • C:\Windows\SysWOW64\timeout.exe
        timeout /t 1
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:1436

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\4a1913d3634b01065ccaf1a7c75c9370\Admin@VETZEJGC_en-US\System\Process.txt

    Filesize

    1KB

    MD5

    7609738e84bdb77a13b6615552cdcc69

    SHA1

    a1c5ae58d65ba45db6ba4bba283f6153e7203fc2

    SHA256

    c4b92791fa24bf931ceedbf4d78f94357b50d8d6892af7ba70539f40fa754764

    SHA512

    85e56930eccbf0ab7d1329713d75a2583c299584d663a2717193f4d53e9c1f739ecad6df46a2c53b74be41c9fa428aa27396825968d810dd73c461297003bf95

  • C:\Users\Admin\AppData\Local\4a1913d3634b01065ccaf1a7c75c9370\Admin@VETZEJGC_en-US\System\Process.txt

    Filesize

    2KB

    MD5

    5e6f8a6423aaf65dc30302935897caa2

    SHA1

    530d6ad3bc6d7461f9e14487e9c99db74e7ff4ce

    SHA256

    996e683ed8d04b1896535d330b70bbb56d462e21aa58df02af096d8d8564616b

    SHA512

    a6620f1414a2d61728f63bd944eda6b4eb377626386fb1c636f52ceec8b4a1af918f603d3f0548c96c91a3271ae79f27622b8fbb5dcc9a690db18d1e50174092

  • C:\Users\Admin\AppData\Local\4a1913d3634b01065ccaf1a7c75c9370\Admin@VETZEJGC_en-US\System\Process.txt

    Filesize

    2KB

    MD5

    ae9f22f342817ab27c5dc9e23b3cccd2

    SHA1

    c25435d4c24eca504612765d1751f49a1d96a0c9

    SHA256

    4f189f8514985af670530b15f77d3d65fe8aefb94522331bc2bf9225f2f64d90

    SHA512

    61aa0b536a6ea127c88d206f3cc104c2834f6162d5a8c4419d7196db1442016a47325cba848f9b0d9518f987d7e7c814d982495701404a86d6d8efe8ea55e3d7

  • memory/4444-0-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

    Filesize

    4KB

  • memory/4444-1-0x0000000000270000-0x0000000000472000-memory.dmp

    Filesize

    2.0MB

  • memory/4444-2-0x0000000005050000-0x0000000005182000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-23-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-49-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-66-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-68-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-64-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-62-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-60-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-57-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-58-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4444-55-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-53-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-51-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-47-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-45-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-43-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-41-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-39-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-35-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-33-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-31-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-37-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-29-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-27-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-25-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-22-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-19-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-17-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-15-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-11-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-9-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-7-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-5-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-4-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-3-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4444-13-0x0000000005050000-0x000000000517C000-memory.dmp

    Filesize

    1.2MB

  • memory/4444-3995-0x0000000074A8E000-0x0000000074A8F000-memory.dmp

    Filesize

    4KB

  • memory/4444-4105-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4444-24401-0x0000000005570000-0x00000000055D6000-memory.dmp

    Filesize

    408KB

  • memory/4444-24406-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24404-0x0000000000400000-0x0000000000416000-memory.dmp

    Filesize

    88KB

  • memory/4704-24405-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24407-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24408-0x0000000005940000-0x00000000059DC000-memory.dmp

    Filesize

    624KB

  • memory/4704-24409-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24410-0x00000000064D0000-0x0000000006A74000-memory.dmp

    Filesize

    5.6MB

  • memory/4704-24411-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24412-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24413-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24414-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24415-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24416-0x0000000007040000-0x00000000070B6000-memory.dmp

    Filesize

    472KB

  • memory/4704-24417-0x00000000070C0000-0x0000000007248000-memory.dmp

    Filesize

    1.5MB

  • memory/4704-24418-0x0000000006FE0000-0x0000000006FFE000-memory.dmp

    Filesize

    120KB

  • memory/4704-24423-0x0000000007250000-0x000000000725A000-memory.dmp

    Filesize

    40KB

  • memory/4704-24557-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB

  • memory/4704-24559-0x0000000008980000-0x0000000008A12000-memory.dmp

    Filesize

    584KB

  • memory/4704-24570-0x0000000007750000-0x00000000077CA000-memory.dmp

    Filesize

    488KB

  • memory/4704-24605-0x0000000074A80000-0x0000000075230000-memory.dmp

    Filesize

    7.7MB