xworm | 6fbf5136f3e1f1a0716e50d00cec8b2aaf861aa75af9dc05e6184101a9a34e1c

Analysis

max time kernel
150s
max time network
174s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
23-01-2025 02:23

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General

Target

IMPUTACIÓN JUDICIAL RAD. N° 0934485/3004_603.exe
Size

2.7MB
MD5

9f237628fe8f748f36bd7ea029a8f8a3
SHA1

f22b7ba378294b663e399638ea8e3774ec26e67d
SHA256

273578237f003f666f7108d12a49f1f3bd60b0ec9b9da73bfc2b3eafda1fa767
SHA512

193aeb2b939165d04563af8e7e98941f1052e156205ae0f69d146e710149fd38c53843758d736a93d0fa0e85eb6e25689f5be61221f03df5116a3a386ce2b007
SSDEEP

49152:FKKe1YeEAYOW1+M5A8Qhkv2suhbV8h2gwW+svqiaFh:QKsW1+M5NQhHhbV8Qvh

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

87.120.116.179:1300

Mutex

3pcjWcNyT1CBwXjJ

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral4/memory/1100-4-0x0000000000C30000-0x0000000000C40000-memory.dmp	family_xworm

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

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-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\LLFTOOL = "C:\\Users\\Admin\\Documents\\KCSoftwares\\sdk\\mdb2db.exe"	3004_603.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 5100 set thread context of 1100	5100	3004_603.exe	83

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	3004_603.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe
5100	3004_603.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1100	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1100	csc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83
PID 5100 wrote to memory of 1100	5100	3004_603.exe	83

C:\Users\Admin\AppData\Local\Temp\IMPUTACIÓN JUDICIAL RAD. N° 0934485\3004_603.exe
"C:\Users\Admin\AppData\Local\Temp\IMPUTACIÓN JUDICIAL RAD. N° 0934485\3004_603.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:5100
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:1100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1100-9-0x00000000067D0000-0x0000000006862000-memory.dmp

Filesize
584KB

Download
memory/1100-8-0x0000000005F20000-0x00000000064C4000-memory.dmp

Filesize
5.6MB

Download
memory/1100-13-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/1100-3-0x000000007394E000-0x000000007394F000-memory.dmp

Filesize
4KB

Download
memory/1100-4-0x0000000000C30000-0x0000000000C40000-memory.dmp

Filesize
64KB

Download
memory/1100-5-0x0000000005690000-0x000000000572C000-memory.dmp

Filesize
624KB

Download
memory/1100-12-0x0000000006C00000-0x0000000006C66000-memory.dmp

Filesize
408KB

Download
memory/1100-11-0x000000007394E000-0x000000007394F000-memory.dmp

Filesize
4KB

Download
memory/1100-10-0x0000000005E70000-0x0000000005E7A000-memory.dmp

Filesize
40KB

Download
memory/1100-7-0x0000000005660000-0x0000000005670000-memory.dmp

Filesize
64KB

Download
memory/5100-0-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/5100-6-0x00000000025C0000-0x000000000261C000-memory.dmp

Filesize
368KB

Download
memory/5100-1-0x0000000000400000-0x00000000006C5000-memory.dmp

Filesize
2.8MB

Download
memory/5100-2-0x0000000002560000-0x000000000258D000-memory.dmp

Filesize
180KB

Download