xworm | 8bcb1766e1f236382b36fab2fc6a8ee385275c0acbf3067471cd9b35703f2875

Analysis

max time kernel
94s
max time network
149s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
21-01-2025 21:29

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General

Target

INV-20230406FD3.scr.exe
Size

620KB
MD5

ce504e263e64e997c9dfb2b4953d6ed9
SHA1

acd670aab3e783c87b1ab7781068f44b5379d83a
SHA256

8bcb1766e1f236382b36fab2fc6a8ee385275c0acbf3067471cd9b35703f2875
SHA512

fa990cd9f3e787f78ffce86cc54442750824ca7e7b0195d925809be8563db85bd692b71321f4ecd7c835e4e2f3fc77ac7d6669384a334f1029caf85f7904c18a
SSDEEP

12288:A+1AIO8DfvjXUL90+FuS7X8pVejWT1On8yEyhLreTAEBFvkR:A+1DfvjXABr7X0sjWxOn8yKTAEBFq

Score

10^/10

xworm discovery rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

45.200.148.105:2011

Mutex

d6r4OvNbMuDCNrHk

Attributes

Install_directory
%AppData%
install_file
Win32.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/3124-11-0x0000000000400000-0x0000000000410000-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\Win32.lnk	INV-20230406FD3.scr.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Win32.lnk	INV-20230406FD3.scr.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1868 set thread context of 3124	1868	INV-20230406FD3.scr.exe	84

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

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	INV-20230406FD3.scr.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	INV-20230406FD3.scr.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
1868	INV-20230406FD3.scr.exe
1868	INV-20230406FD3.scr.exe
3124	INV-20230406FD3.scr.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1868	INV-20230406FD3.scr.exe
Token: SeDebugPrivilege	3124	INV-20230406FD3.scr.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3124	INV-20230406FD3.scr.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84
PID 1868 wrote to memory of 3124	1868	INV-20230406FD3.scr.exe	84

C:\Users\Admin\AppData\Local\Temp\INV-20230406FD3.scr.exe
"C:\Users\Admin\AppData\Local\Temp\INV-20230406FD3.scr.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1868
- C:\Users\Admin\AppData\Local\Temp\INV-20230406FD3.scr.exe
  "C:\Users\Admin\AppData\Local\Temp\INV-20230406FD3.scr.exe"
  2⤵
  - Drops startup file
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:3124

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

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/1868-8-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1868-4-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1868-0-0x00000000744DE000-0x00000000744DF000-memory.dmp

Filesize
4KB

Download
memory/1868-3-0x0000000005780000-0x0000000005812000-memory.dmp

Filesize
584KB

Download
memory/1868-9-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/1868-5-0x0000000005820000-0x000000000582A000-memory.dmp

Filesize
40KB

Download
memory/1868-6-0x0000000005A50000-0x0000000005AEC000-memory.dmp

Filesize
624KB

Download
memory/1868-10-0x0000000003130000-0x0000000003184000-memory.dmp

Filesize
336KB

Download
memory/1868-2-0x0000000005C40000-0x00000000061E4000-memory.dmp

Filesize
5.6MB

Download
memory/1868-1-0x0000000000D20000-0x0000000000DBE000-memory.dmp

Filesize
632KB

Download
memory/1868-7-0x0000000008360000-0x0000000008386000-memory.dmp

Filesize
152KB

Download
memory/1868-14-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3124-13-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3124-11-0x0000000000400000-0x0000000000410000-memory.dmp

Filesize
64KB

Download
memory/3124-19-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3124-20-0x00000000744D0000-0x0000000074C80000-memory.dmp

Filesize
7.7MB

Download
memory/3124-21-0x0000000006440000-0x00000000064A6000-memory.dmp

Filesize
408KB

Download