xworm | 1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05

General

Target

msedge_visual_render.exe
Size

188KB
MD5

e796b778b392f06de4d340ec0f88b4cc
SHA1

32561bf3b022aef8a62bac3e820ef7e3bc648f57
SHA256

1ff08d4cbe1a41c10692941c7835b93ea5738057dc381cf4704136436911df05
SHA512

dcdbeb8d1720b2bfe8ce8c2311414b71ec090eb94db53d379c08cbf7b17a25ac4bc9488315e867406bb1661a76df223c953f01c7d40997fdf9ccb20daaf4c8c7
SSDEEP

3072:2rhv4AbmL4mkbrz9EO7PvJKRUGKXs+S++7KFSbxeY+qDDrMn:2r7bmclbX3ZGqStKEbxI

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

23.ip.gl.ply.gg:57660

Attributes

Install_directory
%AppData%
install_file
msedge.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2520-1-0x0000000000220000-0x0000000000254000-memory.dmp	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
2092	powershell.exe
2740	powershell.exe
2624	powershell.exe
2384	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	msedge_visual_render.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	msedge_visual_render.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-1-5-21-2872745919-2748461613-2989606286-1000\Software\Microsoft\Windows\CurrentVersion\Run\msedge = "C:\\Users\\Admin\\AppData\\Roaming\\msedge.exe"	msedge_visual_render.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2384	powershell.exe
2092	powershell.exe
2740	powershell.exe
2624	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2520	msedge_visual_render.exe
Token: SeDebugPrivilege	2384	powershell.exe
Token: SeDebugPrivilege	2092	powershell.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	2624	powershell.exe
Token: SeDebugPrivilege	2520	msedge_visual_render.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2520 wrote to memory of 2384	2520	msedge_visual_render.exe	30
PID 2520 wrote to memory of 2384	2520	msedge_visual_render.exe	30
PID 2520 wrote to memory of 2384	2520	msedge_visual_render.exe	30
PID 2520 wrote to memory of 2092	2520	msedge_visual_render.exe	32
PID 2520 wrote to memory of 2092	2520	msedge_visual_render.exe	32
PID 2520 wrote to memory of 2092	2520	msedge_visual_render.exe	32
PID 2520 wrote to memory of 2740	2520	msedge_visual_render.exe	34
PID 2520 wrote to memory of 2740	2520	msedge_visual_render.exe	34
PID 2520 wrote to memory of 2740	2520	msedge_visual_render.exe	34
PID 2520 wrote to memory of 2624	2520	msedge_visual_render.exe	36
PID 2520 wrote to memory of 2624	2520	msedge_visual_render.exe	36
PID 2520 wrote to memory of 2624	2520	msedge_visual_render.exe	36

C:\Users\Admin\AppData\Local\Temp\msedge_visual_render.exe
"C:\Users\Admin\AppData\Local\Temp\msedge_visual_render.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2520
- 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\msedge_visual_render.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2384
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge_visual_render.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2092
- 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\msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'msedge.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2624

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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

Filesize
7KB

MD5
6faf5a784e8494a484deb769ec1699d0

SHA1
5b3478439df35eb927d061faabadbef94564a829

SHA256
cdf9f30e44a1a1135ca0df62b52fe4f59c14eaaf64d042b0a9fe4641325aa35e

SHA512
81572b6b6c624ba0a10e847398f7dd5ebecaa3fde392ef5bd732d19c547f3a9f06cae1355d3830d4f81e5ae307eddf46f8ab861d0acbe2d6caf8fae21b8df61f

Download Submit
memory/2092-14-0x000000001B690000-0x000000001B972000-memory.dmp

Filesize
2.9MB

Download
memory/2092-15-0x00000000021D0000-0x00000000021D8000-memory.dmp

Filesize
32KB

Download
memory/2384-6-0x00000000028E0000-0x0000000002960000-memory.dmp

Filesize
512KB

Download
memory/2384-7-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/2384-8-0x0000000002790000-0x0000000002798000-memory.dmp

Filesize
32KB

Download
memory/2520-0-0x000007FEF4FC3000-0x000007FEF4FC4000-memory.dmp

Filesize
4KB

Download
memory/2520-1-0x0000000000220000-0x0000000000254000-memory.dmp

Filesize
208KB

Download
memory/2520-31-0x000000001B1C0000-0x000000001B240000-memory.dmp

Filesize
512KB

Download
memory/2520-32-0x000007FEF4FC3000-0x000007FEF4FC4000-memory.dmp

Filesize
4KB

Download
memory/2520-33-0x000000001B1C0000-0x000000001B240000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads