xworm | 04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822

General

Target

04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe
Size

80KB
MD5

471bfe336a60e3f5adb99494acba77cf
SHA1

6a7770fbba6db6d951fe1a3839cc8ed1992fb433
SHA256

04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822
SHA512

dc79cc473272713a8c1f498ac180bd8db1f1387731cbbd8ebddd9972183b16dd35789854d108976d0aabe27bae547f22b1aab849e9fb718aae1ef5e3a82cd996
SSDEEP

1536:O9Wwkr6rMkYMj9EBh3tqP+be3/iZMyPMYf66rpOsvBqehiTkQ:SlplEBSP+be3/SUwOCBbQ

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Attributes

Install_directory
%AppData%
install_file
Display Adaptor.exe
pastebin_url
https://pastebin.com/raw/nAXieb7q

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral2/memory/4296-1-0x0000000000260000-0x000000000027A000-memory.dmp	family_xworm
behavioral2/files/0x000d000000023ae2-9.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-1-5-21-2437139445-1151884604-3026847218-1000\Control Panel\International\Geo\Nation	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Display Adaptor.lnk	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Display Adaptor.lnk	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe

Executes dropped EXE 2 IoCs

pid	Process
1460	Display Adaptor.exe
3504	Display Adaptor.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2437139445-1151884604-3026847218-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Display Adaptor = "C:\\Users\\Admin\\AppData\\Roaming\\Display Adaptor.exe"	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 5 IoCs

Web Service

T1102

flow	ioc
23	pastebin.com
24	pastebin.com
26	5.tcp.ngrok.io
60	5.tcp.ngrok.io
84	5.tcp.ngrok.io

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
5088	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe
Token: SeDebugPrivilege	4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe
Token: SeDebugPrivilege	1460	Display Adaptor.exe
Token: SeDebugPrivilege	3504	Display Adaptor.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4296 wrote to memory of 5088	4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe	95
PID 4296 wrote to memory of 5088	4296	04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe	95

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\04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.exe
"C:\Users\Admin\AppData\Local\Temp\04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822.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:4296
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Display Adaptor" /tr "C:\Users\Admin\AppData\Roaming\Display Adaptor.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:5088

C:\Users\Admin\AppData\Roaming\Display Adaptor.exe
"C:\Users\Admin\AppData\Roaming\Display Adaptor.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1460

C:\Users\Admin\AppData\Roaming\Display Adaptor.exe
"C:\Users\Admin\AppData\Roaming\Display Adaptor.exe"
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3504

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Web Service

1

T1102

Exfiltration

Impact

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Downloads

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

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Roaming\Display Adaptor.exe

Filesize
80KB

MD5
471bfe336a60e3f5adb99494acba77cf

SHA1
6a7770fbba6db6d951fe1a3839cc8ed1992fb433

SHA256
04cad59e4d5175cad0c953525b7ed5f52d13a6dbda00bb5a8de4aed64ed15822

SHA512
dc79cc473272713a8c1f498ac180bd8db1f1387731cbbd8ebddd9972183b16dd35789854d108976d0aabe27bae547f22b1aab849e9fb718aae1ef5e3a82cd996

Download Submit
memory/1460-11-0x00007FFC4FD40000-0x00007FFC50801000-memory.dmp

Filesize
10.8MB

Download
memory/1460-14-0x00007FFC4FD40000-0x00007FFC50801000-memory.dmp

Filesize
10.8MB

Download
memory/4296-0-0x00007FFC4FD43000-0x00007FFC4FD45000-memory.dmp

Filesize
8KB

Download
memory/4296-1-0x0000000000260000-0x000000000027A000-memory.dmp

Filesize
104KB

Download
memory/4296-6-0x00007FFC4FD40000-0x00007FFC50801000-memory.dmp

Filesize
10.8MB

Download
memory/4296-7-0x00007FFC4FD43000-0x00007FFC4FD45000-memory.dmp

Filesize
8KB

Download
memory/4296-8-0x00007FFC4FD40000-0x00007FFC50801000-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