xworm | 95494d2739b808181796b13c85f7c6327a41d530f8701f03b924daf1b497e1c3

Analysis

max time kernel
121s
max time network
140s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
28-04-2024 05:46

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General

Target

XCliefghfghfghnt.exe
Size

40KB
MD5

c0f78a4a36fe6b44cfbee7d9a9fb9510
SHA1

4455ca2f580196c82e10eade60ace724bdc0b5bc
SHA256

95494d2739b808181796b13c85f7c6327a41d530f8701f03b924daf1b497e1c3
SHA512

5b434ff58d2f404e9df43e8fa2708a9b90c237046c870db87f419d1b726a5946d60321ba02ae69449b1c6cfdc00df317fdb9bd93fd1c3d99a8a9d847159b3186
SSDEEP

768:k55XvtTKnCVrAmJRXFuO5tF5PT95OBOMhT3Ev:kMCdAmJ1FuOLFx95SOM9g

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

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

fTpGRWnrShtm0zhA

Attributes

Install_directory
%AppData%
install_file
runbroker.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1692-0-0x0000000000090000-0x00000000000A0000-memory.dmp	family_xworm

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

Drops startup file 2 IoCs

Processes:

XCliefghfghfghnt.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

XCliefghfghfghnt.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1298544033-3225604241-2703760938-1000\Software\Microsoft\Windows\CurrentVersion\Run\runbroker = "C:\\Users\\Admin\\AppData\\Roaming\\runbroker.exe"	XCliefghfghfghnt.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
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

XCliefghfghfghnt.exe

pid process

1692 XCliefghfghfghnt.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

XCliefghfghfghnt.exe

description pid process

Token: SeDebugPrivilege 1692 XCliefghfghfghnt.exe
Token: SeDebugPrivilege 1692 XCliefghfghfghnt.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

XCliefghfghfghnt.exe

pid process

1692 XCliefghfghfghnt.exe

flow	ioc
4	ip-api.com

pid	process
1692	XCliefghfghfghnt.exe

description	pid	process
Token: SeDebugPrivilege	1692	XCliefghfghfghnt.exe
Token: SeDebugPrivilege	1692	XCliefghfghfghnt.exe

pid	process
1692	XCliefghfghfghnt.exe

C:\Users\Admin\AppData\Local\Temp\XCliefghfghfghnt.exe
"C:\Users\Admin\AppData\Local\Temp\XCliefghfghfghnt.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1692

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1692-0-0x0000000000090000-0x00000000000A0000-memory.dmp

Filesize
64KB

Download
memory/1692-1-0x000007FEF5680000-0x000007FEF606C000-memory.dmp

Filesize
9.9MB

Download
memory/1692-2-0x000000001ADD0000-0x000000001AE50000-memory.dmp

Filesize
512KB

Download
memory/1692-7-0x000007FEF5680000-0x000007FEF606C000-memory.dmp

Filesize
9.9MB

Download
memory/1692-8-0x000000001ADD0000-0x000000001AE50000-memory.dmp

Filesize
512KB

Download