Resubmissions

11/08/2024, 17:41

240811-v9en9sthpe 10

11/08/2024, 17:38

240811-v7raaazcqq 10

28/07/2024, 15:36

240728-s154ravdqg 10

23/07/2024, 17:57

240723-wjy6navcle 10

23/07/2024, 12:45

240723-py1vgazgkq 10

Analysis

  • max time kernel
    1792s
  • max time network
    1797s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    11/08/2024, 17:41

General

  • Target

    X.exe

  • Size

    63KB

  • MD5

    f16a3a537f873f3e7bd334d6cf93c525

  • SHA1

    4fbedba1adbeda56019534b1bf74ff47ed814e61

  • SHA256

    ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

  • SHA512

    032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a

  • SSDEEP

    1536:zDJ1KwwGadRqckbTz0hdOWwdx6mf6ZOTLGuJi:p14GURjkbTnWvOTJJi

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:7787

92.43.187.26:7787

Attributes
  • Install_directory

    %Temp%

  • install_file

    St.exe

Signatures

  • Detect Xworm Payload 14 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

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

  • Drops startup file 2 IoCs
  • Executes dropped EXE 30 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 36 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\X.exe
    "C:\Users\Admin\AppData\Local\Temp\X.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1324
    • 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\X.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:996
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'X.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2624
    • 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\St.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2564
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'St.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3012
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "St" /tr "C:\Users\Admin\AppData\Local\Temp\St.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2388
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {2CBAF1ED-F9CC-4B4B-A7F3-9A62C7130CC8} S-1-5-21-1506706701-1246725540-2219210854-1000:MUYDDIIS\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:2380
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2900
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1516
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3044
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:804
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2080
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2384
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2632
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2720
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2328
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2848
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2988
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2364
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2732
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2804
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3064
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2300
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2492
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2132
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2460
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1844
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2092
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:924
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2576
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2976
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2248
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2832
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2436
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1740
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2596
    • C:\Users\Admin\AppData\Local\Temp\St.exe
      C:\Users\Admin\AppData\Local\Temp\St.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2760

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    63KB

    MD5

    f16a3a537f873f3e7bd334d6cf93c525

    SHA1

    4fbedba1adbeda56019534b1bf74ff47ed814e61

    SHA256

    ba599c53479ad87732d7d5dab8a4cca44bb55cbc134e6054ddb6414e9cfd1508

    SHA512

    032ec3782acaa2d21b24b8aae659e2bede424e594fee00aafbcf66840a8fd048fceae7ef2a8ad449a38590041d241c7edd1c219e9b5ffb3b5e8993a01ba4011a

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TWF270PN32WNHA1ZH9KD.temp

    Filesize

    7KB

    MD5

    7b777f80daf4ba282f4f87b04d433bac

    SHA1

    793eeba2d02d0d3f18af754d64dfde931887951c

    SHA256

    1c2ec85eabd6285eb06235bc91da55f44227854103f56784d5b17acab3af5358

    SHA512

    72d1fcdb9d943309ee975a65dc19cfedd009accabf58bae445660abc6f688a58ca03c3761ed7f3135e94c75b593286b458e715faa1088b897ecf24dcd4f8ca7c

  • memory/924-69-0x00000000011E0000-0x00000000011F6000-memory.dmp

    Filesize

    88KB

  • memory/996-8-0x0000000001DA0000-0x0000000001DA8000-memory.dmp

    Filesize

    32KB

  • memory/996-7-0x000000001B760000-0x000000001BA42000-memory.dmp

    Filesize

    2.9MB

  • memory/996-6-0x0000000002980000-0x0000000002A00000-memory.dmp

    Filesize

    512KB

  • memory/1324-1-0x00000000003B0000-0x00000000003C6000-memory.dmp

    Filesize

    88KB

  • memory/1324-31-0x000000001B340000-0x000000001B3C0000-memory.dmp

    Filesize

    512KB

  • memory/1324-0-0x000007FEF6013000-0x000007FEF6014000-memory.dmp

    Filesize

    4KB

  • memory/1324-36-0x000007FEF6013000-0x000007FEF6014000-memory.dmp

    Filesize

    4KB

  • memory/1324-37-0x000000001B340000-0x000000001B3C0000-memory.dmp

    Filesize

    512KB

  • memory/1516-40-0x0000000001170000-0x0000000001186000-memory.dmp

    Filesize

    88KB

  • memory/1844-65-0x00000000001B0000-0x00000000001C6000-memory.dmp

    Filesize

    88KB

  • memory/2092-67-0x0000000000CD0000-0x0000000000CE6000-memory.dmp

    Filesize

    88KB

  • memory/2300-59-0x0000000001060000-0x0000000001076000-memory.dmp

    Filesize

    88KB

  • memory/2384-45-0x00000000011C0000-0x00000000011D6000-memory.dmp

    Filesize

    88KB

  • memory/2460-63-0x00000000000E0000-0x00000000000F6000-memory.dmp

    Filesize

    88KB

  • memory/2576-71-0x0000000001280000-0x0000000001296000-memory.dmp

    Filesize

    88KB

  • memory/2624-14-0x000000001B610000-0x000000001B8F2000-memory.dmp

    Filesize

    2.9MB

  • memory/2624-15-0x0000000001D10000-0x0000000001D18000-memory.dmp

    Filesize

    32KB

  • memory/2732-53-0x00000000002F0000-0x0000000000306000-memory.dmp

    Filesize

    88KB

  • memory/2804-55-0x0000000001380000-0x0000000001396000-memory.dmp

    Filesize

    88KB

  • memory/2900-35-0x0000000000030000-0x0000000000046000-memory.dmp

    Filesize

    88KB

  • memory/3064-57-0x00000000002C0000-0x00000000002D6000-memory.dmp

    Filesize

    88KB