xworm | 1ff8fa09d7cd8aaa2a6f4f32965f25b2fcb0bd4993729ade01a16164389810c0

General

Target

nigger.exe
Size

41KB
MD5

7820f5d5245b72be9f24ed477f87287b
SHA1

84ce2f3d43accdfb55916e7ec6faf3cab9ed2497
SHA256

1ff8fa09d7cd8aaa2a6f4f32965f25b2fcb0bd4993729ade01a16164389810c0
SHA512

68d4561683a44f6b814d4e98e74b6c123323b98fb32f234b928146389d7c7c8af4987dd43d5dcb044edf293558e3c850dcf8e5c1e6a9e66a9e8741cf61cb7b2b
SSDEEP

768:cTFHrDMQVZYwCxJAuwKFjHKShtF5PG9+zqOwhj3EuX3:6wQEdrAulzKSTFI9+zqOwNFX3

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

uhdZU70lXCRBT2pC

Attributes

Install_directory
%AppData%
install_file
runbroker.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
behavioral2/memory/932-0-0x0000000000C80000-0x0000000000C90000-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:

nigger.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation nigger.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\Control Panel\International\Geo\Nation	nigger.exe

Drops startup file 2 IoCs

Processes:

nigger.exe

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

Executes dropped EXE 3 IoCs

Processes:

runbroker.exerunbroker.exerunbroker.exe

pid process

3580 runbroker.exe
4492 runbroker.exe
4312 runbroker.exe

pid	process
3580	runbroker.exe
4492	runbroker.exe
4312	runbroker.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

nigger.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2860750803-256193626-1801997576-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\runbroker = "C:\\Users\\Admin\\AppData\\Roaming\\runbroker.exe"	nigger.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

3 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

2968 schtasks.exe
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

nigger.exe

pid process

932 nigger.exe

flow	ioc
3	ip-api.com

pid	process
2968	schtasks.exe

pid	process
932	nigger.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

Processes:

nigger.exerunbroker.exerunbroker.exerunbroker.exe

description	pid	process
Token: SeDebugPrivilege	932	nigger.exe
Token: SeDebugPrivilege	932	nigger.exe
Token: SeDebugPrivilege	3580	runbroker.exe
Token: SeDebugPrivilege	4492	runbroker.exe
Token: SeDebugPrivilege	4312	runbroker.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

nigger.exe

pid process

932 nigger.exe
Suspicious use of WriteProcessMemory 2 IoCs

Processes:

nigger.exe

description pid process target process

PID 932 wrote to memory of 2968 932 nigger.exe schtasks.exe
PID 932 wrote to memory of 2968 932 nigger.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

pid	process
932	nigger.exe

description	pid	process	target process
PID 932 wrote to memory of 2968	932	nigger.exe	schtasks.exe
PID 932 wrote to memory of 2968	932	nigger.exe	schtasks.exe

C:\Users\Admin\AppData\Local\Temp\nigger.exe
"C:\Users\Admin\AppData\Local\Temp\nigger.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:932

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:2968

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3580

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4492

C:\Users\Admin\AppData\Roaming\runbroker.exe
C:\Users\Admin\AppData\Roaming\runbroker.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4312

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

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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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
7820f5d5245b72be9f24ed477f87287b

SHA1
84ce2f3d43accdfb55916e7ec6faf3cab9ed2497

SHA256
1ff8fa09d7cd8aaa2a6f4f32965f25b2fcb0bd4993729ade01a16164389810c0

SHA512
68d4561683a44f6b814d4e98e74b6c123323b98fb32f234b928146389d7c7c8af4987dd43d5dcb044edf293558e3c850dcf8e5c1e6a9e66a9e8741cf61cb7b2b

Download Submit
memory/932-0-0x0000000000C80000-0x0000000000C90000-memory.dmp

Filesize
64KB

Download
memory/932-1-0x00007FFECA740000-0x00007FFECB201000-memory.dmp

Filesize
10.8MB

Download
memory/932-2-0x000000001B8A0000-0x000000001B8B0000-memory.dmp

Filesize
64KB

Download
memory/932-3-0x000000001BDB0000-0x000000001BEB2000-memory.dmp

Filesize
1.0MB

Download
memory/932-9-0x00007FFECA740000-0x00007FFECB201000-memory.dmp

Filesize
10.8MB

Download
memory/932-13-0x000000001B8A0000-0x000000001B8B0000-memory.dmp

Filesize
64KB

Download
memory/3580-12-0x00007FFECA740000-0x00007FFECB201000-memory.dmp

Filesize
10.8MB

Download
memory/3580-15-0x00007FFECA740000-0x00007FFECB201000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads