xworm | 499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600

Analysis

max time kernel
144s
max time network
96s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
18-01-2025 17:45

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General

Target

ashbeel.exe
Size

82KB
MD5

b6a12c8b32df34c2aa3fbafcab492aba
SHA1

02d49759282d72e2c55277c802ea531394d6c602
SHA256

499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600
SHA512

ed1ed912774b2822848f0d67f06483816023eac524d1e4cf30e57de35436ba6eed8ef16df2533f3440f7fab78661a22627a71c8096ecbf1da7554e56f5246693
SSDEEP

1536:vJvMimNV6OlhxifG9TzWRqZnGX0dPQXL+b1A31U7ey5EaXABOnWqHN7bF1:vNSlhAfgToqZq+b1AC5EaXABOWgN7bf

Score

10^/10

xworm rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:7000

Attributes

Install_directory
%AppData%
install_file
RealtekUService86.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4700-1-0x0000000000F20000-0x0000000000F3A000-memory.dmp	family_xworm
behavioral2/files/0x000a000000023b63-6.dat	family_xworm

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation	ashbeel.exe

Executes dropped EXE 2 IoCs

pid	Process
4084	RealtekUService86.exe
3232	RealtekUService86.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
3636	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4700	ashbeel.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4700	ashbeel.exe
Token: SeDebugPrivilege	4700	ashbeel.exe
Token: SeDebugPrivilege	4084	RealtekUService86.exe
Token: SeDebugPrivilege	3232	RealtekUService86.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4700	ashbeel.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 3636	4700	ashbeel.exe	83
PID 4700 wrote to memory of 3636	4700	ashbeel.exe	83

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\ashbeel.exe
"C:\Users\Admin\AppData\Local\Temp\ashbeel.exe"
1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "RealtekUService86" /tr "C:\Users\Admin\AppData\Roaming\RealtekUService86.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3636

C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4084

C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
C:\Users\Admin\AppData\Roaming\RealtekUService86.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3232

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\RealtekUService86.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Roaming\RealtekUService86.exe

Filesize
82KB

MD5
b6a12c8b32df34c2aa3fbafcab492aba

SHA1
02d49759282d72e2c55277c802ea531394d6c602

SHA256
499c7636df097d93645acbdb4fae234ae8d0a676bb9167d63535169124b08600

SHA512
ed1ed912774b2822848f0d67f06483816023eac524d1e4cf30e57de35436ba6eed8ef16df2533f3440f7fab78661a22627a71c8096ecbf1da7554e56f5246693

Download Submit
memory/4084-8-0x00007FFAC9040000-0x00007FFAC9B01000-memory.dmp

Filesize
10.8MB

Download
memory/4084-10-0x00007FFAC9040000-0x00007FFAC9B01000-memory.dmp

Filesize
10.8MB

Download
memory/4700-0-0x00007FFAC9043000-0x00007FFAC9045000-memory.dmp

Filesize
8KB

Download
memory/4700-1-0x0000000000F20000-0x0000000000F3A000-memory.dmp

Filesize
104KB

Download
memory/4700-3-0x00007FFAC9040000-0x00007FFAC9B01000-memory.dmp

Filesize
10.8MB

Download
memory/4700-4-0x00007FFAC9043000-0x00007FFAC9045000-memory.dmp

Filesize
8KB

Download
memory/4700-5-0x00007FFAC9040000-0x00007FFAC9B01000-memory.dmp

Filesize
10.8MB

Download