xworm | 355b67101ba439f05337234d028ecba6641db094c6251aee15369f767c12dc3b

General

Target

shexwormonmymemztilliminoxide.exe
Size

41KB
MD5

14f963e28858c6c3f653048a83621c89
SHA1

8c3a1d7d823e19558d80f35b0ee7d88f868ab5c6
SHA256

355b67101ba439f05337234d028ecba6641db094c6251aee15369f767c12dc3b
SHA512

2b6cc20e3b24752120ed007d8f07ba44c38bb964ab76b9dcb9d4f745db82450653dd6b5608812ba1bc325dc9e649ae1fb3600e6ad61565e7046ea4ed199a4bb2
SSDEEP

768:xTFHrDMcksBqaEAOrHA7tF5PM96maOwh23EihHJ:XwcGvAwAxFS96maOwwlx

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

127.0.0.1:38630

147.185.221.19:38630

bay-currencies.gl.at.ply.gg:38630

and-organized.gl.at.ply.gg:38630

community-excess.gl.at.ply.gg:38630

Mutex

TelZ6nrHgxVFZl6W

Attributes

Install_directory
%AppData%
install_file
runbroker.exe

aes.plain

Signatures

Detect Xworm Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1708-0-0x0000000000A40000-0x0000000000A50000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\runbroker.exe	family_xworm
behavioral1/memory/2444-11-0x00000000013C0000-0x00000000013D0000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm

Drops startup file 2 IoCs

Processes:

shexwormonmymemztilliminoxide.exe

description	ioc	process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runbroker.lnk	shexwormonmymemztilliminoxide.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\runbroker.lnk	shexwormonmymemztilliminoxide.exe

Executes dropped EXE 3 IoCs

Processes:

runbroker.exerunbroker.exerunbroker.exe

pid process

2444 runbroker.exe
940 runbroker.exe
2692 runbroker.exe

pid	process
2444	runbroker.exe
940	runbroker.exe
2692	runbroker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

shexwormonmymemztilliminoxide.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000\Software\Microsoft\Windows\CurrentVersion\Run\runbroker = "C:\\Users\\Admin\\AppData\\Roaming\\runbroker.exe"	shexwormonmymemztilliminoxide.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.

Processes:

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
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task/Job
T1053

Processes:

schtasks.exe

pid process

2528 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

shexwormonmymemztilliminoxide.exe

pid process

1708 shexwormonmymemztilliminoxide.exe

flow	ioc
4	ip-api.com

pid	process
2528	schtasks.exe

pid	process
1708	shexwormonmymemztilliminoxide.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

shexwormonmymemztilliminoxide.exerunbroker.exerunbroker.exerunbroker.exe

description	pid	process
Token: SeDebugPrivilege	1708	shexwormonmymemztilliminoxide.exe
Token: SeDebugPrivilege	1708	shexwormonmymemztilliminoxide.exe
Token: SeDebugPrivilege	2444	runbroker.exe
Token: SeDebugPrivilege	940	runbroker.exe
Token: SeDebugPrivilege	2692	runbroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

shexwormonmymemztilliminoxide.exe

pid process

1708 shexwormonmymemztilliminoxide.exe

pid	process
1708	shexwormonmymemztilliminoxide.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

shexwormonmymemztilliminoxide.exetaskeng.exe

description	pid	process	target process
PID 1708 wrote to memory of 2528	1708	shexwormonmymemztilliminoxide.exe	schtasks.exe
PID 1708 wrote to memory of 2528	1708	shexwormonmymemztilliminoxide.exe	schtasks.exe
PID 1708 wrote to memory of 2528	1708	shexwormonmymemztilliminoxide.exe	schtasks.exe
PID 2388 wrote to memory of 2444	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 2444	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 2444	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 940	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 940	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 940	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 2692	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 2692	2388	taskeng.exe	runbroker.exe
PID 2388 wrote to memory of 2692	2388	taskeng.exe	runbroker.exe

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\shexwormonmymemztilliminoxide.exe
"C:\Users\Admin\AppData\Local\Temp\shexwormonmymemztilliminoxide.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:1708

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "runbroker" /tr "C:\Users\Admin\AppData\Roaming\runbroker.exe"
2⤵
- Creates scheduled task(s)
PID:2528

C:\Windows\system32\taskeng.exe
taskeng.exe {17360BAC-3811-4DD3-B62D-391EA41DB2BB} S-1-5-21-330940541-141609230-1670313778-1000:KXIPPCKF\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2388

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2444

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:940

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
2⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2692

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

Scheduled Task/Job

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\runbroker.exe
Filesize
41KB

MD5
14f963e28858c6c3f653048a83621c89

SHA1
8c3a1d7d823e19558d80f35b0ee7d88f868ab5c6

SHA256
355b67101ba439f05337234d028ecba6641db094c6251aee15369f767c12dc3b

SHA512
2b6cc20e3b24752120ed007d8f07ba44c38bb964ab76b9dcb9d4f745db82450653dd6b5608812ba1bc325dc9e649ae1fb3600e6ad61565e7046ea4ed199a4bb2

Download Submit
memory/1708-0-0x0000000000A40000-0x0000000000A50000-memory.dmp

Filesize
64KB

Download
memory/1708-1-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp

Filesize
9.9MB

Download
memory/1708-2-0x000000001B3D0000-0x000000001B450000-memory.dmp

Filesize
512KB

Download
memory/1708-7-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp

Filesize
9.9MB

Download
memory/2444-11-0x00000000013C0000-0x00000000013D0000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads