Analysis

  • max time kernel
    1794s
  • max time network
    1790s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 22:08

General

  • Target

    tumblr-main/svchost.exe

  • Size

    54KB

  • MD5

    161f7262ae9a6d95ce0f93e46cc5fcf9

  • SHA1

    164551a9330c19a9ed62b6e7d54c6d247704b5e0

  • SHA256

    73a74ebd5e95700aef901c8771fc4b64a677885f23e15bd67628b38e726f7408

  • SHA512

    63bcc54b5846ec20e65c660054d5f6051f357bf803451bf740d7d27505dcc3497a122d62e62ed966329d5b713b8848300bb5ddd77025a3b53cd0d53a19a4c3ea

  • SSDEEP

    1536:SgkETz/wBd3o3nnJWbdWDc06KVnO/jtg:SGnIcXJWbdWBnO/xg

Malware Config

Extracted

Family

xworm

C2

45.10.151.182:7000

Attributes
  • Install_directory

    %AppData%

  • install_file

    svchost.exe

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 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
  • Looks up external IP address via web service 1 IoCs

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

  • 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 behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 34 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\tumblr-main\svchost.exe
    "C:\Users\Admin\AppData\Local\Temp\tumblr-main\svchost.exe"
    1⤵
    • Drops startup file
    • Adds Run key to start application
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:692
    • 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\tumblr-main\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1816
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2904
    • 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\svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2952
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2652
    • C:\Windows\System32\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Roaming\svchost.exe"
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2688
  • C:\Windows\system32\taskeng.exe
    taskeng.exe {CC896FA0-58D6-4491-B506-18F18FF76078} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1804
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2504
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2008
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1596
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2704
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2972
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1856
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1528
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2312
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2820
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2992
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1724
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2176
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      PID:532
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2804
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2360
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2208
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2028
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1500
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2912
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2848
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:3040
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:916
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2012
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:624
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2640
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2040
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:1148
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:2392
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:756
    • C:\Users\Admin\AppData\Roaming\svchost.exe
      C:\Users\Admin\AppData\Roaming\svchost.exe
      2⤵
      • Executes dropped EXE
      PID:1956

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

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

    Filesize

    7KB

    MD5

    e59db5e8d703a58ec66e27ac0ef1ea69

    SHA1

    6e003f0e3ccc4dda2e0bc1db5b521f44a79bada4

    SHA256

    f719430039fe4eba56d180668e4132109f44a5a449c6444e6f70f04b4eb37d04

    SHA512

    073f4b42030efd9b403c3d5322d77489c746d5823140af83fc5c9a9ccd58ffb1d6dc32b6a68d504c24fc0765e67876ccefc9bc1fbdc5da0a082a1eddbe8ea200

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

    Filesize

    54KB

    MD5

    161f7262ae9a6d95ce0f93e46cc5fcf9

    SHA1

    164551a9330c19a9ed62b6e7d54c6d247704b5e0

    SHA256

    73a74ebd5e95700aef901c8771fc4b64a677885f23e15bd67628b38e726f7408

    SHA512

    63bcc54b5846ec20e65c660054d5f6051f357bf803451bf740d7d27505dcc3497a122d62e62ed966329d5b713b8848300bb5ddd77025a3b53cd0d53a19a4c3ea

  • memory/624-72-0x0000000000FF0000-0x0000000001004000-memory.dmp

    Filesize

    80KB

  • memory/692-1-0x00000000010F0000-0x0000000001104000-memory.dmp

    Filesize

    80KB

  • memory/692-2-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB

  • memory/692-0-0x000007FEF54B3000-0x000007FEF54B4000-memory.dmp

    Filesize

    4KB

  • memory/692-28-0x000007FEF54B3000-0x000007FEF54B4000-memory.dmp

    Filesize

    4KB

  • memory/692-33-0x000007FEF54B0000-0x000007FEF5E9C000-memory.dmp

    Filesize

    9.9MB

  • memory/756-81-0x0000000000FC0000-0x0000000000FD4000-memory.dmp

    Filesize

    80KB

  • memory/1148-77-0x0000000000E50000-0x0000000000E64000-memory.dmp

    Filesize

    80KB

  • memory/1724-53-0x0000000000150000-0x0000000000164000-memory.dmp

    Filesize

    80KB

  • memory/1816-9-0x0000000001F50000-0x0000000001F58000-memory.dmp

    Filesize

    32KB

  • memory/1816-8-0x000000001B630000-0x000000001B912000-memory.dmp

    Filesize

    2.9MB

  • memory/1816-7-0x0000000002A50000-0x0000000002AD0000-memory.dmp

    Filesize

    512KB

  • memory/1956-83-0x0000000001160000-0x0000000001174000-memory.dmp

    Filesize

    80KB

  • memory/2008-40-0x0000000001070000-0x0000000001084000-memory.dmp

    Filesize

    80KB

  • memory/2012-70-0x0000000000220000-0x0000000000234000-memory.dmp

    Filesize

    80KB

  • memory/2028-63-0x00000000011E0000-0x00000000011F4000-memory.dmp

    Filesize

    80KB

  • memory/2040-75-0x00000000002E0000-0x00000000002F4000-memory.dmp

    Filesize

    80KB

  • memory/2176-55-0x0000000001130000-0x0000000001144000-memory.dmp

    Filesize

    80KB

  • memory/2208-61-0x0000000000200000-0x0000000000214000-memory.dmp

    Filesize

    80KB

  • memory/2312-47-0x0000000001080000-0x0000000001094000-memory.dmp

    Filesize

    80KB

  • memory/2392-79-0x00000000003B0000-0x00000000003C4000-memory.dmp

    Filesize

    80KB

  • memory/2504-37-0x0000000000370000-0x0000000000384000-memory.dmp

    Filesize

    80KB

  • memory/2804-58-0x0000000001330000-0x0000000001344000-memory.dmp

    Filesize

    80KB

  • memory/2820-49-0x00000000001D0000-0x00000000001E4000-memory.dmp

    Filesize

    80KB

  • memory/2904-16-0x0000000001DD0000-0x0000000001DD8000-memory.dmp

    Filesize

    32KB

  • memory/2904-15-0x000000001B6A0000-0x000000001B982000-memory.dmp

    Filesize

    2.9MB

  • memory/2992-51-0x0000000001370000-0x0000000001384000-memory.dmp

    Filesize

    80KB