xworm | 66fef291c5314a7a20d2d8535ca351bcdd47bafb41136c8855f5ed460be856e1

Analysis

max time kernel
57s
max time network
63s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
25-03-2023 11:22

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General

Target

Acordx.exe
Size

39KB
MD5

d8eea36339d0a086726466a84da3f0af
SHA1

9142f5dea09185b825dd1f49fedd4c1b2f9fb7ad
SHA256

66fef291c5314a7a20d2d8535ca351bcdd47bafb41136c8855f5ed460be856e1
SHA512

124690ddd7d8269d4d85bafb1249fa720230a44f4c3db49ebd3589e0ba2e109400ad344e31ecda6d2cefb38ef17be137b3e7b7ad617f1e762f4d41c2541bfb8b
SSDEEP

768:o1leL7KF2loeyNLRLGlw1FP19EnOphTu+vLe:6eKhegElWFt9EnOpNy

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

soon-lp.at.ply.gg:17209

Mutex

G7BSoodIKNHsk7C8

Attributes

install_file
USB.exe

aes.plain

Signatures

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:

Acordx.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation Acordx.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\Control Panel\International\Geo\Nation	Acordx.exe

Drops startup file 2 IoCs

Processes:

Acordx.exe

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

Executes dropped EXE 1 IoCs

Processes:

Acordx.exe

pid process

404 Acordx.exe

pid	process
404	Acordx.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Acordx.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4238149048-355649189-894321705-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Acordx = "C:\\Users\\Admin\\AppData\\Roaming\\Acordx.exe"	Acordx.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

29 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

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
T1053

Processes:

schtasks.exe

pid process

1348 schtasks.exe
Suspicious use of AdjustPrivilegeToken 3 IoCs

Processes:

Acordx.exeAcordx.exe

description pid process

Token: SeDebugPrivilege 4432 Acordx.exe
Token: SeDebugPrivilege 4432 Acordx.exe
Token: SeDebugPrivilege 404 Acordx.exe

flow	ioc
29	ip-api.com

pid	process
1348	schtasks.exe

description	pid	process
Token: SeDebugPrivilege	4432	Acordx.exe
Token: SeDebugPrivilege	4432	Acordx.exe
Token: SeDebugPrivilege	404	Acordx.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

Acordx.exe

description	pid	process	target process
PID 4432 wrote to memory of 1348	4432	Acordx.exe	schtasks.exe
PID 4432 wrote to memory of 1348	4432	Acordx.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\Acordx.exe
"C:\Users\Admin\AppData\Local\Temp\Acordx.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4432

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Acordx" /tr "C:\Users\Admin\AppData\Roaming\Acordx.exe"
2⤵
- Creates scheduled task(s)
PID:1348

C:\Users\Admin\AppData\Roaming\Acordx.exe
C:\Users\Admin\AppData\Roaming\Acordx.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:404

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Acordx.exe
Filesize
39KB

MD5
d8eea36339d0a086726466a84da3f0af

SHA1
9142f5dea09185b825dd1f49fedd4c1b2f9fb7ad

SHA256
66fef291c5314a7a20d2d8535ca351bcdd47bafb41136c8855f5ed460be856e1

SHA512
124690ddd7d8269d4d85bafb1249fa720230a44f4c3db49ebd3589e0ba2e109400ad344e31ecda6d2cefb38ef17be137b3e7b7ad617f1e762f4d41c2541bfb8b

Download Submit
C:\Users\Admin\AppData\Roaming\Acordx.exe
Filesize
39KB

MD5
d8eea36339d0a086726466a84da3f0af

SHA1
9142f5dea09185b825dd1f49fedd4c1b2f9fb7ad

SHA256
66fef291c5314a7a20d2d8535ca351bcdd47bafb41136c8855f5ed460be856e1

SHA512
124690ddd7d8269d4d85bafb1249fa720230a44f4c3db49ebd3589e0ba2e109400ad344e31ecda6d2cefb38ef17be137b3e7b7ad617f1e762f4d41c2541bfb8b

Download Submit
C:\Users\Admin\AppData\Roaming\Acordx.exe
Filesize
39KB

MD5
d8eea36339d0a086726466a84da3f0af

SHA1
9142f5dea09185b825dd1f49fedd4c1b2f9fb7ad

SHA256
66fef291c5314a7a20d2d8535ca351bcdd47bafb41136c8855f5ed460be856e1

SHA512
124690ddd7d8269d4d85bafb1249fa720230a44f4c3db49ebd3589e0ba2e109400ad344e31ecda6d2cefb38ef17be137b3e7b7ad617f1e762f4d41c2541bfb8b

Download Submit
memory/4432-133-0x00000000003A0000-0x00000000003B0000-memory.dmp

Filesize
64KB

Download
memory/4432-134-0x000000001BAC0000-0x000000001BAD0000-memory.dmp

Filesize
64KB

Download
memory/4432-143-0x000000001C880000-0x000000001C982000-memory.dmp

Filesize
1.0MB

Download
memory/4432-144-0x000000001BAC0000-0x000000001BAD0000-memory.dmp

Filesize
64KB

Download