xworm | 91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
20-11-2024 12:45

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General

Target

91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe
Size

253KB
MD5

fd2201497c2a985bc0f86a069d534fb3
SHA1

4e2f1ac07162e37beb62ae297bcb579f0ef91020
SHA256

91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83
SHA512

d3c66780b55b42437ae6ffdc6a9a5d654534db0a026aad2b8d6d0ca85d7ce9a92c507e8e5e5b11e5de6fe7243abf8ff0d59483397d80f50492f7ae402f4c632a
SSDEEP

6144:QfXT5QBy680QyttI+5v1BNWP9dQPmZMYuFZmGS2:Jd8CttXUQPmiYuHX

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

178.215.224.96:7886

Mutex

eI2rMhB46IPDjynT

Attributes

install_file
USB.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4396-1-0x0000000000400000-0x0000000000410000-memory.dmp	family_xworm

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

Looks up external IP address via web service 1 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
15	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3780 set thread context of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87

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	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
4396	MSBuild.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4396	MSBuild.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4396	MSBuild.exe

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 3780 wrote to memory of 2556	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	86
PID 3780 wrote to memory of 2556	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	86
PID 3780 wrote to memory of 2556	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	86
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87
PID 3780 wrote to memory of 4396	3780	91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe	87

C:\Users\Admin\AppData\Local\Temp\91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe
"C:\Users\Admin\AppData\Local\Temp\91e36194bc1caf8580ad6f4c697f4086b7bc49ded8b05b8d379997c465d2ba83.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3780
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2556
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4396

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3780-0-0x000000000033C000-0x000000000033D000-memory.dmp

Filesize
4KB

Download
memory/4396-1-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/4396-2-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/4396-3-0x0000000004FD0000-0x000000000506C000-memory.dmp

Filesize
624KB

Download
memory/4396-4-0x0000000004F30000-0x0000000004F96000-memory.dmp

Filesize
408KB

Download
memory/4396-5-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download
memory/4396-6-0x0000000006640000-0x0000000006BE4000-memory.dmp

Filesize
5.6MB

Download
memory/4396-7-0x0000000006280000-0x0000000006312000-memory.dmp

Filesize
584KB

Download
memory/4396-8-0x0000000006260000-0x000000000626A000-memory.dmp

Filesize
40KB

Download
memory/4396-9-0x0000000074E5E000-0x0000000074E5F000-memory.dmp

Filesize
4KB

Download
memory/4396-10-0x0000000074E50000-0x0000000075600000-memory.dmp

Filesize
7.7MB

Download