xworm | 9994b9e197b422529221de7238dc0e44ae21e66d78c48355f31837c3696ec90e

Analysis

max time kernel
148s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
30-12-2024 05:30

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General

Target

5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe
Size

85KB
MD5

c1826ac82abf9c6d49c3bff9f8cbb31c
SHA1

0c15d09f8af3e0850c97b8aece22e351229ab6bd
SHA256

5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43
SHA512

76ada87e6b90a5a1e7622b148affd1ad89f83eef9af81f96b6d94d64ae8b4a80624b2b118a2890aca945a10b0ec12d0e6d0d4304d300e7be4cf8f70c4ebac855
SSDEEP

1536:Dl+noSnLDekZPaf2vpmbl4aXmI7ufDD6ALj2TCzOgiHZnP:D8v/aev4bl4i7acoOzH1P

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

185.117.250.169:7000

66.175.239.149:7000

185.117.249.43:7000

Attributes

Install_directory
%AppData%
install_file
WmiPrvSE.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral16/memory/3928-1-0x0000000000800000-0x000000000081C000-memory.dmp	family_xworm
behavioral16/files/0x000f000000023b7f-59.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
xworm

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.

execution

PowerShell

T1059.001

pid	Process
1192	powershell.exe
4312	powershell.exe
4036	powershell.exe
3792	powershell.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Control Panel\International\Geo\Nation	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WmiPrvSE.lnk	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\WmiPrvSE.lnk	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Executes dropped EXE 3 IoCs

pid	Process
1616	WmiPrvSE.exe
4588	WmiPrvSE.exe
5072	WmiPrvSE.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\WmiPrvSE = "C:\\Users\\Admin\\AppData\\Roaming\\WmiPrvSE.exe"	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Looks up external IP address via web service 1 IoCs

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

flow	ioc
14	ip-api.com

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

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

persistence execution

Scheduled Task

T1053.005

pid	Process
700	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
1192	powershell.exe
1192	powershell.exe
4312	powershell.exe
4312	powershell.exe
4036	powershell.exe
4036	powershell.exe
3792	powershell.exe
3792	powershell.exe
3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe
Token: SeDebugPrivilege	1192	powershell.exe
Token: SeDebugPrivilege	4312	powershell.exe
Token: SeDebugPrivilege	4036	powershell.exe
Token: SeDebugPrivilege	3792	powershell.exe
Token: SeDebugPrivilege	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe
Token: SeDebugPrivilege	1616	WmiPrvSE.exe
Token: SeDebugPrivilege	4588	WmiPrvSE.exe
Token: SeDebugPrivilege	5072	WmiPrvSE.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3928 wrote to memory of 1192	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	82
PID 3928 wrote to memory of 1192	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	82
PID 3928 wrote to memory of 4312	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	84
PID 3928 wrote to memory of 4312	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	84
PID 3928 wrote to memory of 4036	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	86
PID 3928 wrote to memory of 4036	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	86
PID 3928 wrote to memory of 3792	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	88
PID 3928 wrote to memory of 3792	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	88
PID 3928 wrote to memory of 700	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	92
PID 3928 wrote to memory of 700	3928	5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe	92

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.
persistence

Query Registry
T1012

C:\Users\Admin\AppData\Local\Temp\5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe
"C:\Users\Admin\AppData\Local\Temp\5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3928
- 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\5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1192
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4312
- 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\WmiPrvSE.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4036
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'WmiPrvSE.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3792
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "WmiPrvSE" /tr "C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:700

C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1616

C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4588

C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5072

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

Filesize
944B

MD5
2e907f77659a6601fcc408274894da2e

SHA1
9f5b72abef1cd7145bf37547cdb1b9254b4efe9d

SHA256
385da35673330e21ac02545220552fe301fe54dedefbdafc097ac4342a295233

SHA512
34fa0fff24f6550f55f828541aaefe5d75c86f8f0842d54b50065e9746f9662bb7209c74c9a9571540b9855bb3851f01db613190024e89b198d485bb5dc07721

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

Filesize
944B

MD5
15dde0683cd1ca19785d7262f554ba93

SHA1
d039c577e438546d10ac64837b05da480d06bf69

SHA256
d6fa39eab7ee36f44dc3f9f2839d098433db95c1eba924e4bcf4e5c0d268d961

SHA512
57c0e1b87bc1c136f0d39f3ce64bb8f8274a0491e4ca6e45e5c7f9070aa9d9370c6f590ce37cd600b252df2638d870205249a514c43245ca7ed49017024a4672

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_rolrnd34.w0z.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\WmiPrvSE.exe

Filesize
85KB

MD5
c1826ac82abf9c6d49c3bff9f8cbb31c

SHA1
0c15d09f8af3e0850c97b8aece22e351229ab6bd

SHA256
5ff273f03e88a8b0a1f58c85dfa28fee6f44766eb09d53c421eb770d6b965e43

SHA512
76ada87e6b90a5a1e7622b148affd1ad89f83eef9af81f96b6d94d64ae8b4a80624b2b118a2890aca945a10b0ec12d0e6d0d4304d300e7be4cf8f70c4ebac855

Download Submit
memory/1192-18-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/1192-15-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/1192-14-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/1192-13-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/1192-8-0x00000247FA290000-0x00000247FA2B2000-memory.dmp

Filesize
136KB

Download
memory/3928-1-0x0000000000800000-0x000000000081C000-memory.dmp

Filesize
112KB

Download
memory/3928-57-0x00007FFB85243000-0x00007FFB85245000-memory.dmp

Filesize
8KB

Download
memory/3928-58-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3928-2-0x00007FFB85240000-0x00007FFB85D01000-memory.dmp

Filesize
10.8MB

Download
memory/3928-0-0x00007FFB85243000-0x00007FFB85245000-memory.dmp

Filesize
8KB

Download