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
    147s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250217-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250217-enlocale:en-usos:windows10-2004-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 4 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.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • 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 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of WriteProcessMemory 38 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⤵
    • Checks computer location settings
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2248
    • 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:1676
    • 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:4616
    • 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:3636
    • 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:1076
    • C:\Users\Admin\AppData\Local\Temp\mraqzw.exe
      "C:\Users\Admin\AppData\Local\Temp\mraqzw.exe"
      2⤵
      • Checks computer location settings
      • Drops startup file
      • Executes dropped EXE
      • Adds Run key to start application
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:1012
      • 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\mraqzw.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4560
      • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'mraqzw.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:4524
      • 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\mraqzw.exe'
        3⤵
        • Command and Scripting Interpreter: PowerShell
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2976
      • C:\Windows\System32\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "mraqzw" /tr "C:\Users\Admin\AppData\Roaming\mraqzw.exe"
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:2724
      • C:\Users\Admin\AppData\Local\Temp\brqemr.exe
        "C:\Users\Admin\AppData\Local\Temp\brqemr.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2136
      • C:\Users\Admin\AppData\Local\Temp\zajpzm.exe
        "C:\Users\Admin\AppData\Local\Temp\zajpzm.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2588
      • C:\Users\Admin\AppData\Local\Temp\lfywyj.exe
        "C:\Users\Admin\AppData\Local\Temp\lfywyj.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:516
      • C:\Users\Admin\AppData\Local\Temp\ewduud.exe
        "C:\Users\Admin\AppData\Local\Temp\ewduud.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious use of AdjustPrivilegeToken
        PID:2640
    • C:\Users\Admin\AppData\Local\Temp\fexkuj.exe
      "C:\Users\Admin\AppData\Local\Temp\fexkuj.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4380
    • C:\Users\Admin\AppData\Local\Temp\qiggma.exe
      "C:\Users\Admin\AppData\Local\Temp\qiggma.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3236
    • C:\Users\Admin\AppData\Local\Temp\gnmfye.exe
      "C:\Users\Admin\AppData\Local\Temp\gnmfye.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4664
    • C:\Users\Admin\AppData\Local\Temp\huphas.exe
      "C:\Users\Admin\AppData\Local\Temp\huphas.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1980
    • C:\Users\Admin\AppData\Local\Temp\yzqtwg.exe
      "C:\Users\Admin\AppData\Local\Temp\yzqtwg.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3104
    • C:\Users\Admin\AppData\Local\Temp\onqewf.exe
      "C:\Users\Admin\AppData\Local\Temp\onqewf.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1300
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:212
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:468
  • C:\Users\Admin\AppData\Roaming\mraqzw.exe
    C:\Users\Admin\AppData\Roaming\mraqzw.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4528
  • C:\Users\Admin\AppData\Roaming\XClient.exe
    C:\Users\Admin\AppData\Roaming\XClient.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:5008
  • C:\Users\Admin\AppData\Roaming\mraqzw.exe
    C:\Users\Admin\AppData\Roaming\mraqzw.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:4540

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log

    Filesize

    654B

    MD5

    2ff39f6c7249774be85fd60a8f9a245e

    SHA1

    684ff36b31aedc1e587c8496c02722c6698c1c4e

    SHA256

    e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

    SHA512

    1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

    Filesize

    2KB

    MD5

    d85ba6ff808d9e5444a4b369f5bc2730

    SHA1

    31aa9d96590fff6981b315e0b391b575e4c0804a

    SHA256

    84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

    SHA512

    8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    da5c82b0e070047f7377042d08093ff4

    SHA1

    89d05987cd60828cca516c5c40c18935c35e8bd3

    SHA256

    77a94ef8c4258445d538a6006ffadb05afdf888f6f044e1e5466b981a07f16c5

    SHA512

    7360311a3c97b73dd3f6d7179cd979e0e20d69f380d38292447e17e369087d9dd5acb66cd0cbdd95ac4bfb16e5a1b86825f835a8d45b14ea9812102cff59704b

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    6d3e9c29fe44e90aae6ed30ccf799ca8

    SHA1

    c7974ef72264bbdf13a2793ccf1aed11bc565dce

    SHA256

    2360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d

    SHA512

    60c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    47605a4dda32c9dff09a9ca441417339

    SHA1

    4f68c895c35b0dc36257fc8251e70b968c560b62

    SHA256

    e6254c2bc9846a76a4567ab91b6eae76e937307ff9301b65d577ffe6e15fe40a

    SHA512

    b6823b6e794a2fe3e4c4ecfb3f0d61a54821de7feb4f9e3e7fd463e7fbb5e6848f59865b487dafebeac431e4f4db81ef56836d94cac67da39852c566ed34a885

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    eb1ad317bd25b55b2bbdce8a28a74a94

    SHA1

    98a3978be4d10d62e7411946474579ee5bdc5ea6

    SHA256

    9e94e7c9ac6134ee30e79498558aa1a5a1ac79a643666c3f8922eed215dd3a98

    SHA512

    d011f266c0240d84470c0f9577cd9e4927309bd19bb38570ca9704ed8e1d159f9bea982a59d3eefef72ce7a10bd81208b82e88ef57c7af587f7437a89769adc0

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

    Filesize

    944B

    MD5

    10890cda4b6eab618e926c4118ab0647

    SHA1

    1e1d63b73a0e6c7575f458b3c7917a9ce5ba776d

    SHA256

    00f8a035324d39bd62e6dee5e1b480069015471c487ebee4479e6990ea9ddb14

    SHA512

    a2ee84006c24a36f25e0bca0772430d64e3791f233da916aecdeae6712763e77d55bbbd00dc8f6b2b3887f3c26ab3980b96c5f46cc823e81e28abbbc5fc78221

  • C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_uc44n3zr.lmw.ps1

    Filesize

    60B

    MD5

    d17fe0a3f47be24a6453e9ef58c94641

    SHA1

    6ab83620379fc69f80c0242105ddffd7d98d5d9d

    SHA256

    96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

    SHA512

    5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

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

    Filesize

    34KB

    MD5

    950d739da650457fab6a225545794238

    SHA1

    e965286161ecda1b8c0072d8a2d80c191bb15705

    SHA256

    a571fcac5384158c4927e7c7cf07182b68eccf67845ba927beae44cd9835e3f8

    SHA512

    b7b91343176c5a7f6408b21fbc96c23d0b02c080b846e29f304ba91de1d0f37a772953e7ab65d1d627cb3490fbef3b85681564e878d8dcda57c0897dbad1d19b

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

    Filesize

    34KB

    MD5

    420aaab8a4e68d5730a9e19422a0fe96

    SHA1

    f4dd350f797169f22c8efd7de8a252b7d2fcf8ae

    SHA256

    d65824b6d2c191eb48d040261d408ecb3f1d0cf6ef9ceac096543b184582aded

    SHA512

    fa1ccd03397231387559381aa7762e786b98fa89c02a8b09b6804a14ed0a3ce45ba11bb6b5f7a112a2420a3bd25f708f2ebc4afb281c377dc372fca563e63f98

  • memory/1012-66-0x00000000004F0000-0x00000000004FE000-memory.dmp

    Filesize

    56KB

  • memory/1676-17-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1676-14-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1676-13-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1676-12-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/1676-8-0x000002AAF7DD0000-0x000002AAF7DF2000-memory.dmp

    Filesize

    136KB

  • memory/2248-49-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/2248-53-0x00007FFBF1520000-0x00007FFBF1FE1000-memory.dmp

    Filesize

    10.8MB

  • memory/2248-54-0x000000001C2F0000-0x000000001C2FA000-memory.dmp

    Filesize

    40KB

  • memory/2248-0-0x00007FFBF1523000-0x00007FFBF1525000-memory.dmp

    Filesize

    8KB

  • memory/2248-1-0x0000000000AA0000-0x0000000000AAE000-memory.dmp

    Filesize

    56KB