xworm | f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21f

General

Target

f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe
Size

83KB
MD5

31490196d04d08f16caec6fb9f227360
SHA1

0ceabbf06050eac442ff5340429fbea9ae7419e7
SHA256

f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21f
SHA512

f1a1605d084c0e2c5ff24a7c5bd7f3197dd3f8bed344afec38015f051380d5b4928ba1ec68e8f1348f6f2ea247e1292d4caf95a7b71fa1668de7f35169b3b79d
SSDEEP

1536:KOItpoEucVEhr9AOlcQQn8YTlbrfikUSNG6eqhyOXcY1VA3:TBEfefAOlHQ8YTlbrfi7SN2qYOXcYM3

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

primary-organizing.gl.at.ply.gg:16003

Attributes

Install_directory
%AppData%
install_file
System.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/2260-1-0x0000000000A70000-0x0000000000A8C000-memory.dmp	family_xworm
behavioral1/files/0x000b0000000164c8-36.dat	family_xworm
behavioral1/memory/2404-38-0x0000000000310000-0x000000000032C000-memory.dmp	family_xworm
behavioral1/memory/1240-41-0x00000000002F0000-0x000000000030C000-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
2296	powershell.exe
2712	powershell.exe
3036	powershell.exe
2652	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe

Executes dropped EXE 2 IoCs

pid	Process
2404	System.exe
1240	System.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System.exe"	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.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

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
1472	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2296	powershell.exe
2712	powershell.exe
3036	powershell.exe
2652	powershell.exe
2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe
Token: SeDebugPrivilege	2296	powershell.exe
Token: SeDebugPrivilege	2712	powershell.exe
Token: SeDebugPrivilege	3036	powershell.exe
Token: SeDebugPrivilege	2652	powershell.exe
Token: SeDebugPrivilege	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe
Token: SeDebugPrivilege	2404	System.exe
Token: SeDebugPrivilege	1240	System.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 2260 wrote to memory of 2296	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	32
PID 2260 wrote to memory of 2296	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	32
PID 2260 wrote to memory of 2296	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	32
PID 2260 wrote to memory of 2712	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	34
PID 2260 wrote to memory of 2712	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	34
PID 2260 wrote to memory of 2712	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	34
PID 2260 wrote to memory of 3036	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	36
PID 2260 wrote to memory of 3036	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	36
PID 2260 wrote to memory of 3036	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	36
PID 2260 wrote to memory of 2652	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	38
PID 2260 wrote to memory of 2652	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	38
PID 2260 wrote to memory of 2652	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	38
PID 2260 wrote to memory of 1472	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	40
PID 2260 wrote to memory of 1472	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	40
PID 2260 wrote to memory of 1472	2260	f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe	40
PID 1560 wrote to memory of 2404	1560	taskeng.exe	43
PID 1560 wrote to memory of 2404	1560	taskeng.exe	43
PID 1560 wrote to memory of 2404	1560	taskeng.exe	43
PID 1560 wrote to memory of 1240	1560	taskeng.exe	44
PID 1560 wrote to memory of 1240	1560	taskeng.exe	44
PID 1560 wrote to memory of 1240	1560	taskeng.exe	44

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\f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe
"C:\Users\Admin\AppData\Local\Temp\f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.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:2260
- 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\f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2296
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21fN.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2712
- 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\System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3036
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'System.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2652
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1472

C:\Windows\system32\taskeng.exe
taskeng.exe {2F1834B0-F468-41FF-B101-11924F51FCA3} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:1560
- C:\Users\Admin\AppData\Roaming\System.exe
  C:\Users\Admin\AppData\Roaming\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2404
- C:\Users\Admin\AppData\Roaming\System.exe
  C:\Users\Admin\AppData\Roaming\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1240

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

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
b4738cb8b065b05592b0bc48cf559ddd

SHA1
e1d59cf50c1b62551189c82034604c7cda9ff7b1

SHA256
32ffb9cea1eae2149de0440f8037a7bd4164d981bf08641d185dcd8767ea766b

SHA512
516526dd0d413a494bd5c2ec614b37aa7ff0a21fad3239ae8f28fd42ab5d9be819641bbbb0029be8292d1d2d4614f9feae90087555f611ec50c20290c35492e3

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

Filesize
83KB

MD5
31490196d04d08f16caec6fb9f227360

SHA1
0ceabbf06050eac442ff5340429fbea9ae7419e7

SHA256
f6809a32647a759cb5a171a13850cd2c62dfe6409dd8766066fc8950795bb21f

SHA512
f1a1605d084c0e2c5ff24a7c5bd7f3197dd3f8bed344afec38015f051380d5b4928ba1ec68e8f1348f6f2ea247e1292d4caf95a7b71fa1668de7f35169b3b79d

Download Submit
memory/1240-41-0x00000000002F0000-0x000000000030C000-memory.dmp

Filesize
112KB

Download
memory/2260-2-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download
memory/2260-0-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2260-28-0x000007FEF5CD3000-0x000007FEF5CD4000-memory.dmp

Filesize
4KB

Download
memory/2260-34-0x000007FEF5CD0000-0x000007FEF66BC000-memory.dmp

Filesize
9.9MB

Download
memory/2260-1-0x0000000000A70000-0x0000000000A8C000-memory.dmp

Filesize
112KB

Download
memory/2296-7-0x0000000002E60000-0x0000000002EE0000-memory.dmp

Filesize
512KB

Download
memory/2296-8-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2296-9-0x0000000001E70000-0x0000000001E78000-memory.dmp

Filesize
32KB

Download
memory/2404-38-0x0000000000310000-0x000000000032C000-memory.dmp

Filesize
112KB

Download
memory/2712-15-0x000000001B650000-0x000000001B932000-memory.dmp

Filesize
2.9MB

Download
memory/2712-16-0x0000000002290000-0x0000000002298000-memory.dmp

Filesize
32KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads