xworm | a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f

General

Target

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Size

75KB
MD5

2fbece266a952df408602eb9cbedad0f
SHA1

f307c496bb6fd8531584c19474ef6de1775ba744
SHA256

a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f
SHA512

15edd9bd37ce9179701758eb1a49dbffd4a101b3b33aa21e757c4a1117772170c0ff3e8355a798f605c763affd2be664bd71c75eb71265c320dcbe3339850c16
SSDEEP

1536:WQvlvzEfcn5PF6vWs6aq69eq9bC29104DTcp7i600xPCOMQln84lO:WovIfk6OYRbCaSacl4OMulO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

25.ip.gl.ply.gg:8258

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2852-1-0x0000000001150000-0x000000000116A000-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
2628	powershell.exe
2632	powershell.exe
964	powershell.exe
2336	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.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
4	ip-api.com

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2628	powershell.exe
2632	powershell.exe
964	powershell.exe
2336	powershell.exe
2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
Token: SeDebugPrivilege	2628	powershell.exe
Token: SeDebugPrivilege	2632	powershell.exe
Token: SeDebugPrivilege	964	powershell.exe
Token: SeDebugPrivilege	2336	powershell.exe
Token: SeDebugPrivilege	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2852 wrote to memory of 2628	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	31
PID 2852 wrote to memory of 2628	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	31
PID 2852 wrote to memory of 2628	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	31
PID 2852 wrote to memory of 2632	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	33
PID 2852 wrote to memory of 2632	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	33
PID 2852 wrote to memory of 2632	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	33
PID 2852 wrote to memory of 964	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	35
PID 2852 wrote to memory of 964	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	35
PID 2852 wrote to memory of 964	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	35
PID 2852 wrote to memory of 2336	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	37
PID 2852 wrote to memory of 2336	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	37
PID 2852 wrote to memory of 2336	2852	a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe	37

C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe
"C:\Users\Admin\AppData\Local\Temp\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe"
1⤵
- 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:2852
- 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\a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2628
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'a85daa145e9e0bb8872bf92f1f4046a7a03870390e966314dfb4802bbb63382f.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2632
- 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:964
- 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:2336

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
80193009adce230c5c224334e5af5c26

SHA1
c3d40c4f45ff3d4b6046a6462cf8321d78ff8a77

SHA256
ae1e7bda1b3604870230c33aaa0eab3edc2bd3df32fe21b47fa1d6697e118a53

SHA512
843169c9d3a5579d224dc347c841ccb2e1fd7faa68d5f33132115367ef5f9afdd7f85e3a8993719dce11acca25acdd80c35c649479b13de134b7c783a0b986a7

Download Submit
memory/2628-7-0x00000000028A0000-0x0000000002920000-memory.dmp

Filesize
512KB

Download
memory/2628-8-0x000000001B6A0000-0x000000001B982000-memory.dmp

Filesize
2.9MB

Download
memory/2628-9-0x0000000001D90000-0x0000000001D98000-memory.dmp

Filesize
32KB

Download
memory/2632-15-0x000000001B730000-0x000000001BA12000-memory.dmp

Filesize
2.9MB

Download
memory/2632-16-0x0000000002060000-0x0000000002068000-memory.dmp

Filesize
32KB

Download
memory/2852-0-0x000007FEF5543000-0x000007FEF5544000-memory.dmp

Filesize
4KB

Download
memory/2852-1-0x0000000001150000-0x000000000116A000-memory.dmp

Filesize
104KB

Download
memory/2852-2-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download
memory/2852-28-0x000007FEF5543000-0x000007FEF5544000-memory.dmp

Filesize
4KB

Download
memory/2852-34-0x000007FEF5540000-0x000007FEF5F2C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads