Resubmissions

06/03/2025, 14:20

250306-rntphszxdy 10

06/03/2025, 14:17

250306-rl1eaa1ly5 10

06/03/2025, 14:12

250306-rja2ls1ls4 10

06/03/2025, 14:02

250306-rb7eva1jz2 10

Analysis

  • max time kernel
    146s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    06/03/2025, 14:17

General

  • Target

    XClient.exe

  • Size

    34KB

  • MD5

    420aaab8a4e68d5730a9e19422a0fe96

  • SHA1

    f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

  • SHA256

    d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

  • SHA512

    fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

  • SSDEEP

    768:0e749/qEkLACVVickCVFy19JZ6aO/hoq/:XaCEk8hcdF49JZ6aO/CQ

Malware Config

Extracted

Family

xworm

Version

3.1

C2

association-lectures.gl.at.ply.gg:32463

Mutex

Gpg1PP1lxuWY9X4X

Attributes
  • Install_directory

    %AppData%

  • install_file

    USB.exe

aes.plain
aes.plain

Signatures

  • Detect Xworm Payload 19 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Xworm family
  • Command and Scripting Interpreter: PowerShell 1 TTPs 6 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Drops startup file 4 IoCs
  • Executes dropped EXE 16 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 64 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2016
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2604
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2876
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2992
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2712
    • C:\Users\Admin\AppData\Local\Temp\appbfi.exe
      "C:\Users\Admin\AppData\Local\Temp\appbfi.exe"
      2⤵
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1672
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\appbfi.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1708
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'appbfi.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2284
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\appbfi.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:912
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "appbfi" /tr "C:\Users\Admin\AppData\Roaming\appbfi.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:576
      • C:\Users\Admin\AppData\Local\Temp\zrvdim.exe
        "C:\Users\Admin\AppData\Local\Temp\zrvdim.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1064
      • C:\Users\Admin\AppData\Local\Temp\svslyw.exe
        "C:\Users\Admin\AppData\Local\Temp\svslyw.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2996
      • C:\Users\Admin\AppData\Local\Temp\mrjqca.exe
        "C:\Users\Admin\AppData\Local\Temp\mrjqca.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2080
      • C:\Users\Admin\AppData\Local\Temp\vcwfox.exe
        "C:\Users\Admin\AppData\Local\Temp\vcwfox.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:1520
    • C:\Users\Admin\AppData\Local\Temp\jxhboc.exe
      "C:\Users\Admin\AppData\Local\Temp\jxhboc.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2272
    • C:\Users\Admin\AppData\Local\Temp\rcugpj.exe
      "C:\Users\Admin\AppData\Local\Temp\rcugpj.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1028
    • C:\Users\Admin\AppData\Local\Temp\qwkivr.exe
      "C:\Users\Admin\AppData\Local\Temp\qwkivr.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2800
    • C:\Users\Admin\AppData\Local\Temp\azptrq.exe
      "C:\Users\Admin\AppData\Local\Temp\azptrq.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1788
    • C:\Users\Admin\AppData\Local\Temp\jyhuwk.exe
      "C:\Users\Admin\AppData\Local\Temp\jyhuwk.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1748
    • C:\Users\Admin\AppData\Local\Temp\dwopgh.exe
      "C:\Users\Admin\AppData\Local\Temp\dwopgh.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3008
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {DA512B72-B72D-4DCF-9CD4-79EB10666A87} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2368
    • C:\Users\Admin\AppData\Roaming\XClient.exe
      C:\Users\Admin\AppData\Roaming\XClient.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2360
    • C:\Users\Admin\AppData\Roaming\appbfi.exe
      C:\Users\Admin\AppData\Roaming\appbfi.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2108
    • C:\Users\Admin\AppData\Roaming\XClient.exe
      C:\Users\Admin\AppData\Roaming\XClient.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1612
    • C:\Users\Admin\AppData\Roaming\appbfi.exe
      C:\Users\Admin\AppData\Roaming\appbfi.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1988
    • C:\Users\Admin\AppData\Roaming\XClient.exe
      C:\Users\Admin\AppData\Roaming\XClient.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2668

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\appbfi.exe

    Filesize

    34KB

    MD5

    950d739da650457fab6a225545794238

    SHA1

    e965286161ecda1b8c0072d8a2d80c191bb15705

    SHA256

    a571fcac5384158c4927e7c7cf07182b68eccf67845ba927beae44cd9835e3f8

    SHA512

    b7b91343176c5a7f6408b21fbc96c23d0b02c080b846e29f304ba91de1d0f37a772953e7ab65d1d627cb3490fbef3b85681564e878d8dcda57c0897dbad1d19b

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    82edd53de3aa9c79fad9a8e4f52b6978

    SHA1

    2977376e1dd3f0a9ffde153913983b45aa72b97f

    SHA256

    4e5accdd29726b5abe9c304c2bfedb988965cc399bfb8242e8ce337bccfd38ac

    SHA512

    a8218936b2be33059d2a0e37b343bc7ff3921a8075ccb6c7f8bc268e4dac1ec89d54b62c9587b629c928a5d1bb56311c3cf76d6dc4c64cf41806cfc220a70092

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

    Filesize

    7KB

    MD5

    d0d562c211f3b31fe14fadef3a3e91f9

    SHA1

    016a57d2edd192a8e0db0c52d4890cbc6f235a63

    SHA256

    335df1446779bc24c14aeb7961672eaf04bc1a198c19b26a6ae64b9f082a85ab

    SHA512

    2a6fc53d72a46df1bed4ad0cbeaf08b61acee32b771e36dd2190d3a7f5c521c2fae43b6072fad2f6edb55424234a48db57417a825aea56d67accbb2d1fccd8b2

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

    Filesize

    34KB

    MD5

    420aaab8a4e68d5730a9e19422a0fe96

    SHA1

    f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

    SHA256

    d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

    SHA512

    fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

  • memory/1028-78-0x0000000000DB0000-0x0000000000DBE000-memory.dmp

    Filesize

    56KB

  • memory/1064-97-0x0000000000EB0000-0x0000000000EBE000-memory.dmp

    Filesize

    56KB

  • memory/1520-129-0x0000000000930000-0x000000000093E000-memory.dmp

    Filesize

    56KB

  • memory/1612-85-0x0000000000D10000-0x0000000000D1E000-memory.dmp

    Filesize

    56KB

  • memory/1672-42-0x00000000013D0000-0x00000000013DE000-memory.dmp

    Filesize

    56KB

  • memory/1708-48-0x0000000002290000-0x0000000002298000-memory.dmp

    Filesize

    32KB

  • memory/1748-122-0x0000000000190000-0x000000000019E000-memory.dmp

    Filesize

    56KB

  • memory/1788-109-0x00000000012D0000-0x00000000012DE000-memory.dmp

    Filesize

    56KB

  • memory/2016-0-0x000007FEF55E3000-0x000007FEF55E4000-memory.dmp

    Filesize

    4KB

  • memory/2016-1-0x00000000000A0000-0x00000000000AE000-memory.dmp

    Filesize

    56KB

  • memory/2016-36-0x00000000006A0000-0x00000000006AA000-memory.dmp

    Filesize

    40KB

  • memory/2016-35-0x0000000000170000-0x00000000001F0000-memory.dmp

    Filesize

    512KB

  • memory/2016-30-0x0000000000170000-0x00000000001F0000-memory.dmp

    Filesize

    512KB

  • memory/2080-117-0x00000000002B0000-0x00000000002BE000-memory.dmp

    Filesize

    56KB

  • memory/2108-84-0x00000000011E0000-0x00000000011EE000-memory.dmp

    Filesize

    56KB

  • memory/2272-60-0x0000000000210000-0x000000000021E000-memory.dmp

    Filesize

    56KB

  • memory/2360-34-0x0000000000380000-0x000000000038E000-memory.dmp

    Filesize

    56KB

  • memory/2604-8-0x00000000026E0000-0x00000000026E8000-memory.dmp

    Filesize

    32KB

  • memory/2604-6-0x0000000002710000-0x0000000002790000-memory.dmp

    Filesize

    512KB

  • memory/2604-7-0x000000001B540000-0x000000001B822000-memory.dmp

    Filesize

    2.9MB

  • memory/2668-137-0x00000000003E0000-0x00000000003EE000-memory.dmp

    Filesize

    56KB

  • memory/2800-92-0x0000000000320000-0x000000000032E000-memory.dmp

    Filesize

    56KB

  • memory/2876-14-0x000000001B650000-0x000000001B932000-memory.dmp

    Filesize

    2.9MB

  • memory/2876-15-0x00000000022A0000-0x00000000022A8000-memory.dmp

    Filesize

    32KB

  • memory/2996-104-0x0000000000BD0000-0x0000000000BDE000-memory.dmp

    Filesize

    56KB

  • memory/3008-134-0x0000000000E80000-0x0000000000E8E000-memory.dmp

    Filesize

    56KB