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/2616-1-0x0000000000BB0000-0x0000000000BE4000-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
3064	powershell.exe
2492	powershell.exe
3048	powershell.exe
2840	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\msedge.lnk	msedge_visual_render.exe
File created	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-1-5-21-1163522206-1469769407-485553996-1000\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
3048	powershell.exe
2840	powershell.exe
3064	powershell.exe
2492	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2616	msedge_visual_render.exe
Token: SeDebugPrivilege	3048	powershell.exe
Token: SeDebugPrivilege	2840	powershell.exe
Token: SeDebugPrivilege	3064	powershell.exe
Token: SeDebugPrivilege	2492	powershell.exe
Token: SeDebugPrivilege	2616	msedge_visual_render.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2616 wrote to memory of 3048	2616	msedge_visual_render.exe	30
PID 2616 wrote to memory of 3048	2616	msedge_visual_render.exe	30
PID 2616 wrote to memory of 3048	2616	msedge_visual_render.exe	30
PID 2616 wrote to memory of 2840	2616	msedge_visual_render.exe	32
PID 2616 wrote to memory of 2840	2616	msedge_visual_render.exe	32
PID 2616 wrote to memory of 2840	2616	msedge_visual_render.exe	32
PID 2616 wrote to memory of 3064	2616	msedge_visual_render.exe	34
PID 2616 wrote to memory of 3064	2616	msedge_visual_render.exe	34
PID 2616 wrote to memory of 3064	2616	msedge_visual_render.exe	34
PID 2616 wrote to memory of 2492	2616	msedge_visual_render.exe	36
PID 2616 wrote to memory of 2492	2616	msedge_visual_render.exe	36
PID 2616 wrote to memory of 2492	2616	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:2616
- 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:3048
- 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:2840
- 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:3064
- 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:2492

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\Y2VIIPWX752DA2ZHOMWR.temp

Filesize
7KB

MD5
bd4c56f2bba7767af103d1aaa6418b6f

SHA1
841c4cc43e0274d0d2637bf6c865086ec0efc070

SHA256
bc74c04f0846513def36909bf8bc5ca622f2b61979398e2d026fc7b4271b3290

SHA512
85227b00b0843a5c607a7865e220d225cb862b3b0c24bb1e174766b18cc2c3a0adae3f99b14ac51440a14234c8e5e408e40dc9aecd2613736d21abe7478d749b

Download Submit
memory/2616-0-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

Filesize
4KB

Download
memory/2616-1-0x0000000000BB0000-0x0000000000BE4000-memory.dmp

Filesize
208KB

Download
memory/2616-30-0x00000000023C0000-0x0000000002440000-memory.dmp

Filesize
512KB

Download
memory/2616-31-0x000007FEF5B73000-0x000007FEF5B74000-memory.dmp

Filesize
4KB

Download
memory/2616-32-0x00000000023C0000-0x0000000002440000-memory.dmp

Filesize
512KB

Download
memory/2840-14-0x000000001B610000-0x000000001B8F2000-memory.dmp

Filesize
2.9MB

Download
memory/2840-15-0x0000000001E10000-0x0000000001E18000-memory.dmp

Filesize
32KB

Download
memory/3048-6-0x0000000002A70000-0x0000000002AF0000-memory.dmp

Filesize
512KB

Download
memory/3048-7-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/3048-8-0x0000000001E20000-0x0000000001E28000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads