xworm | 7f175bde58843224ac7eb5b1d872e4d6189bbd4e529210c93747815f27272705

General

Target

XClient.exe
Size

35KB
MD5

8e2004dd32bda2b26546d940697f2e74
SHA1

54cb59c5b9089563417da7ba32a585b5fd249472
SHA256

7f175bde58843224ac7eb5b1d872e4d6189bbd4e529210c93747815f27272705
SHA512

35a01e5376db084f3a07942edf064df7d18e223416f1f3035fb85b8c726ff6b95f786eb050d7d9bfa29a030fc761b63ded46d7163c9ed6ae0e025ef7c267117a
SSDEEP

384:KImOlrq3Qq8K+kSk12XFKFi1q8QchnN6V/JXpXwxGLZfi5cnsrT7iJiUE/o58pk4:qZ/YXygNA5ILvEiLoVFyw9zZdO/hCyP

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

147.185.221.19:16347

Mutex

ER01K154hVOItHNG

Attributes

Install_directory
%AppData%
install_file
XClient.exe

aes.plain

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/memory/5328-1-0x00000000001C0000-0x00000000001D0000-memory.dmp	family_xworm
behavioral3/files/0x001a00000002b265-10.dat	family_xworm

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

Drops startup file 2 IoCs

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

Executes dropped EXE 7 IoCs

pid	Process
4752	XClient.exe
4896	XClient.exe
5292	XClient.exe
4024	XClient.exe
4480	XClient.exe
2676	XClient.exe
5840	XClient.exe

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
5888	schtasks.exe

Suspicious use of AdjustPrivilegeToken 9 IoCs

description	pid	Process
Token: SeDebugPrivilege	5328	XClient.exe
Token: SeDebugPrivilege	5328	XClient.exe
Token: SeDebugPrivilege	4752	XClient.exe
Token: SeDebugPrivilege	4896	XClient.exe
Token: SeDebugPrivilege	5292	XClient.exe
Token: SeDebugPrivilege	4024	XClient.exe
Token: SeDebugPrivilege	4480	XClient.exe
Token: SeDebugPrivilege	2676	XClient.exe
Token: SeDebugPrivilege	5840	XClient.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 5328 wrote to memory of 5888	5328	XClient.exe	78
PID 5328 wrote to memory of 5888	5328	XClient.exe	78

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\XClient.exe
"C:\Users\Admin\AppData\Local\Temp\XClient.exe"
1⤵
- Drops startup file
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5328
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "XClient" /tr "C:\Users\Admin\AppData\Roaming\XClient.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5888

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4752

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4896

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5292

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4024

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4480

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2676

C:\Users\Admin\AppData\Roaming\XClient.exe
C:\Users\Admin\AppData\Roaming\XClient.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5840

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

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\Local\Microsoft\CLR_v4.0\UsageLogs\XClient.exe.log

Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

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

Filesize
35KB

MD5
8e2004dd32bda2b26546d940697f2e74

SHA1
54cb59c5b9089563417da7ba32a585b5fd249472

SHA256
7f175bde58843224ac7eb5b1d872e4d6189bbd4e529210c93747815f27272705

SHA512
35a01e5376db084f3a07942edf064df7d18e223416f1f3035fb85b8c726ff6b95f786eb050d7d9bfa29a030fc761b63ded46d7163c9ed6ae0e025ef7c267117a

Download Submit
memory/4752-12-0x00007FF9253F0000-0x00007FF925EB2000-memory.dmp

Filesize
10.8MB

Download
memory/4752-14-0x00007FF9253F0000-0x00007FF925EB2000-memory.dmp

Filesize
10.8MB

Download
memory/5328-0-0x00007FF9253F3000-0x00007FF9253F5000-memory.dmp

Filesize
8KB

Download
memory/5328-1-0x00000000001C0000-0x00000000001D0000-memory.dmp

Filesize
64KB

Download
memory/5328-6-0x00007FF9253F0000-0x00007FF925EB2000-memory.dmp

Filesize
10.8MB

Download
memory/5328-7-0x00007FF9253F3000-0x00007FF9253F5000-memory.dmp

Filesize
8KB

Download
memory/5328-8-0x00007FF9253F0000-0x00007FF925EB2000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads