xworm | 1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590

General

Target

1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe
Size

59KB
MD5

91b5e8f0f941632476acdb56dd13c598
SHA1

34a051be4b40fa273deb322d3f6827138068e800
SHA256

1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590
SHA512

7a10c304d120c71cd3b5b7e97414b3b8feb4aafc6a05a4e7d0914e1f69fdd9f717e36d063e8f0adc3d4192af69743e0c9778569bdcf8883d167f6fcb151cd3c6
SSDEEP

1536:bhE2m1pT2lxGjnTd8WUeyQQl/kbrLLAAwQU0DOdN5dx/:tEp6lxinTuWHyQskbPL+IOdpx/

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

193.233.255.106:69

Attributes

Install_directory
%AppData%
install_file
System.exe
telegram
https://api.telegram.org/bot7678901257:AAENkDGBF25IbXLdzfMeaD-OMDGJWC2_KRQ/sendMessage?chat_id=7813784541

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral1/memory/2492-1-0x0000000001210000-0x0000000001226000-memory.dmp	family_xworm
behavioral1/files/0x000b00000001202c-8.dat	family_xworm
behavioral1/memory/2928-10-0x0000000001220000-0x0000000001236000-memory.dmp	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\System.lnk	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\System.lnk	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe

Executes dropped EXE 1 IoCs

pid	Process
2928	System.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-1-5-21-1163522206-1469769407-485553996-1000\Software\Microsoft\Windows\CurrentVersion\Run\System = "C:\\Users\\Admin\\AppData\\Roaming\\System.exe"	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.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
1428	schtasks.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2492	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe
Token: SeDebugPrivilege	2492	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe
Token: SeDebugPrivilege	2928	System.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2492 wrote to memory of 1428	2492	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe	30
PID 2492 wrote to memory of 1428	2492	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe	30
PID 2492 wrote to memory of 1428	2492	1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe	30
PID 2932 wrote to memory of 2928	2932	taskeng.exe	34
PID 2932 wrote to memory of 2928	2932	taskeng.exe	34
PID 2932 wrote to memory of 2928	2932	taskeng.exe	34

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\1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe
"C:\Users\Admin\AppData\Local\Temp\1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2492
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "System" /tr "C:\Users\Admin\AppData\Roaming\System.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:1428

C:\Windows\system32\taskeng.exe
taskeng.exe {BB58843D-4B15-43AF-93E4-2674F7D864E1} S-1-5-21-1163522206-1469769407-485553996-1000:PJCSDMRP\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2932
- C:\Users\Admin\AppData\Roaming\System.exe
  C:\Users\Admin\AppData\Roaming\System.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2928
- C:\Users\Admin\AppData\Roaming\System.exe
  C:\Users\Admin\AppData\Roaming\System.exe
  2⤵
  PID:2768

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

1

T1012

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\System.exe

Filesize
59KB

MD5
91b5e8f0f941632476acdb56dd13c598

SHA1
34a051be4b40fa273deb322d3f6827138068e800

SHA256
1a7d261601e4bbc160e9b96db9320d6594665aa94a8827b2e749beadd89b7590

SHA512
7a10c304d120c71cd3b5b7e97414b3b8feb4aafc6a05a4e7d0914e1f69fdd9f717e36d063e8f0adc3d4192af69743e0c9778569bdcf8883d167f6fcb151cd3c6

Download Submit
memory/2492-0-0x000007FEF5F33000-0x000007FEF5F34000-memory.dmp

Filesize
4KB

Download
memory/2492-1-0x0000000001210000-0x0000000001226000-memory.dmp

Filesize
88KB

Download
memory/2492-6-0x000007FEF5F30000-0x000007FEF691C000-memory.dmp

Filesize
9.9MB

Download
memory/2492-11-0x000007FEF5F33000-0x000007FEF5F34000-memory.dmp

Filesize
4KB

Download
memory/2492-12-0x000007FEF5F30000-0x000007FEF691C000-memory.dmp

Filesize
9.9MB

Download
memory/2928-10-0x0000000001220000-0x0000000001236000-memory.dmp

Filesize
88KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads