xworm | 809e6e727c4ab324f36b55eebeaa3f0f77130c8bd2a0a11ec3c12e9e7a5345b8

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
08/03/2025, 13:35

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General

Target

i4i5cWlPds5T4lU.exe
Size

2.4MB
MD5

6921656a8f1f24ab3b1a39c45b31ebc9
SHA1

54f97880caab512cac55201162b37a5e9d7f4ae6
SHA256

809e6e727c4ab324f36b55eebeaa3f0f77130c8bd2a0a11ec3c12e9e7a5345b8
SHA512

e251cfb31ff5ba0c224d22ffc13bc1f98872a450ec9fd404e064d6bf123d4378f8719130613f90a9609780fc28210cc7e8e1c32b9ab36e4a0142d36f7f70390a
SSDEEP

24576:d5/Jl2jvpMkjgWH7cFh3+Dg+Vj2G+92kNFycQZ1Pd/sZhnZaYxs12CG:67cP3+c+UN9H0lZ1tsXZje

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Extracted

Family

xworm

MrN0name-63570.portmap.host:63570

Attributes

Install_directory
%LocalAppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/1648-22838-0x0000000000400000-0x000000000041C000-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-1-5-21-2703099537-420551529-3771253338-1000\Software\Microsoft\Windows\CurrentVersion\Run\666999666 = "C:\\Users\\Public\\Documents\\i4i5cWlPds5T4lU.exe"	i4i5cWlPds5T4lU.exe

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
4	ip-api.com

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2656 set thread context of 1648	2656	i4i5cWlPds5T4lU.exe	31

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	i4i5cWlPds5T4lU.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe
2656	i4i5cWlPds5T4lU.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2656	i4i5cWlPds5T4lU.exe
Token: SeDebugPrivilege	1648	RegAsm.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31
PID 2656 wrote to memory of 1648	2656	i4i5cWlPds5T4lU.exe	31

C:\Users\Admin\AppData\Local\Temp\i4i5cWlPds5T4lU.exe
"C:\Users\Admin\AppData\Local\Temp\i4i5cWlPds5T4lU.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:1648

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/1648-22838-0x0000000000400000-0x000000000041C000-memory.dmp

Filesize
112KB

Download
memory/2656-35-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-13-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-19-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-21-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-37-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-39-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-44-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-3-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-5-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-7-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-11-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-9-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-17-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-15-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-0-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/2656-47-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-45-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-67-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-2-0x0000000005120000-0x0000000005244000-memory.dmp

Filesize
1.1MB

Download
memory/2656-41-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-23-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-31-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-29-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-27-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-25-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-33-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-4-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-65-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-63-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-61-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-60-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-57-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-55-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-53-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-51-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-49-0x0000000005120000-0x000000000523F000-memory.dmp

Filesize
1.1MB

Download
memory/2656-22820-0x00000000744EE000-0x00000000744EF000-memory.dmp

Filesize
4KB

Download
memory/2656-22821-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download
memory/2656-1-0x0000000000D90000-0x0000000000FF4000-memory.dmp

Filesize
2.4MB

Download
memory/2656-22839-0x00000000744E0000-0x0000000074BCE000-memory.dmp

Filesize
6.9MB

Download