xworm | 9e776e42d46f0ea879002d936b62f7494e1d770c72238d739e9c2683d88745e0

General

Target

nigga.exe
Size

41KB
MD5

2050f7f1b36613662a5b4bf5756589f4
SHA1

5203b9e7928342b7c40ab9865b9701effcd818c1
SHA256

9e776e42d46f0ea879002d936b62f7494e1d770c72238d739e9c2683d88745e0
SHA512

25ada35957fed8f825350fe711ad98de669ce551a449a9b3ee94c43bdf07f8895d82ca2e652ba72e9e6685e3eb035e4ba3622c55bd08aabb08cf02d91fd5cbbe
SSDEEP

768:9TFHrDMQVZYwCxsAuwKFjHKShtF5PG9+bOwhO3EuXA:DwQEdOAulzKSTFI9+bOwgFXA

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

YfT9WSgF2TVkrY89

Attributes

Install_directory
%AppData%
install_file
runbroker.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/4888-0-0x00000000002D0000-0x00000000002E0000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\runbroker.exe	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

nigga.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation nigga.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\Control Panel\International\Geo\Nation	nigga.exe

Drops startup file 2 IoCs

Processes:

nigga.exe

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

Executes dropped EXE 2 IoCs

Processes:

runbroker.exerunbroker.exe

pid process

3864 runbroker.exe
1352 runbroker.exe

pid	process
3864	runbroker.exe
1352	runbroker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

nigga.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-17203666-93769886-2545153620-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\runbroker = "C:\\Users\\Admin\\AppData\\Roaming\\runbroker.exe"	nigga.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

4564 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

nigga.exe

pid process

4888 nigga.exe

flow	ioc
4	ip-api.com

pid	process
4564	schtasks.exe

pid	process
4888	nigga.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

Processes:

nigga.exerunbroker.exerunbroker.exe

description	pid	process
Token: SeDebugPrivilege	4888	nigga.exe
Token: SeDebugPrivilege	4888	nigga.exe
Token: SeDebugPrivilege	3864	runbroker.exe
Token: SeDebugPrivilege	1352	runbroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

nigga.exe

pid process

4888 nigga.exe

pid	process
4888	nigga.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

nigga.exe

description	pid	process	target process
PID 4888 wrote to memory of 4564	4888	nigga.exe	schtasks.exe
PID 4888 wrote to memory of 4564	4888	nigga.exe	schtasks.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\nigga.exe
"C:\Users\Admin\AppData\Local\Temp\nigga.exe"
1⤵
- Checks computer location settings
- 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:4888

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:4564

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3864

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1352

Network

MITRE ATT&CK Matrix ATT&CK v13

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\runbroker.exe.log
Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Roaming\runbroker.exe
Filesize
41KB

MD5
2050f7f1b36613662a5b4bf5756589f4

SHA1
5203b9e7928342b7c40ab9865b9701effcd818c1

SHA256
9e776e42d46f0ea879002d936b62f7494e1d770c72238d739e9c2683d88745e0

SHA512
25ada35957fed8f825350fe711ad98de669ce551a449a9b3ee94c43bdf07f8895d82ca2e652ba72e9e6685e3eb035e4ba3622c55bd08aabb08cf02d91fd5cbbe

Download Submit
memory/3864-11-0x00007FFE63E00000-0x00007FFE648C1000-memory.dmp

Filesize
10.8MB

Download
memory/3864-13-0x00007FFE63E00000-0x00007FFE648C1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-0-0x00000000002D0000-0x00000000002E0000-memory.dmp

Filesize
64KB

Download
memory/4888-1-0x00007FFE63E00000-0x00007FFE648C1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-2-0x000000001B060000-0x000000001B070000-memory.dmp

Filesize
64KB

Download
memory/4888-7-0x00007FFE63E00000-0x00007FFE648C1000-memory.dmp

Filesize
10.8MB

Download
memory/4888-8-0x000000001B060000-0x000000001B070000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads