xworm | 7ddbec7fac00ec5624f45da5879ebfa97d95b21c7842cbaa1058daa46a47bd41

Analysis

max time kernel
55s
max time network
39s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 19:52

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General

Target

c53059381a17db7f48cf6871b7869c48.exe
Size

71KB
MD5

c53059381a17db7f48cf6871b7869c48
SHA1

56afbdfcedd33f8002d4624a83ce4a07dea43454
SHA256

d462a5239f8b7933b6202c0cd440b2593ac44be6ac5e9d12b1f3f6ba675e0e2b
SHA512

85a4d82bc75cc2365668de13df983bdf4ae8d39c37161da2ef1d747eeaf1cb0b5585ea1f973b4671a725e54bd47f3d288cd6dfff2dc30ed886f968a1a18302f2
SSDEEP

1536:V0qYHDDZY5rgvZzOnAaDBnza+bhVB4gc8ivg6bPQROE2HkKQOT/B:qqkDDu5rs9Ozc+bf7j2IROaXaB

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

127.0.0.1:62271

renzik-62271.portmap.host:62271

Attributes

Install_directory
%Temp%
install_file
svchost.exe

Signatures

Detect Xworm Payload 3 IoCs

resource	yara_rule
behavioral29/memory/2820-1-0x00000000002A0000-0x00000000002B8000-memory.dmp	family_xworm
behavioral29/files/0x000a000000012250-10.dat	family_xworm
behavioral29/memory/2212-12-0x0000000000910000-0x0000000000928000-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\svchost.lnk	c53059381a17db7f48cf6871b7869c48.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	c53059381a17db7f48cf6871b7869c48.exe

Executes dropped EXE 1 IoCs

pid	Process
2212	svchost.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-1-5-21-312935884-697965778-3955649944-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Local\\Temp\\svchost.exe"	c53059381a17db7f48cf6871b7869c48.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
2676	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2820	c53059381a17db7f48cf6871b7869c48.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2820	c53059381a17db7f48cf6871b7869c48.exe
Token: SeDebugPrivilege	2820	c53059381a17db7f48cf6871b7869c48.exe
Token: SeDebugPrivilege	2212	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2820	c53059381a17db7f48cf6871b7869c48.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 2820 wrote to memory of 2676	2820	c53059381a17db7f48cf6871b7869c48.exe	30
PID 2820 wrote to memory of 2676	2820	c53059381a17db7f48cf6871b7869c48.exe	30
PID 2820 wrote to memory of 2676	2820	c53059381a17db7f48cf6871b7869c48.exe	30
PID 448 wrote to memory of 2212	448	taskeng.exe	33
PID 448 wrote to memory of 2212	448	taskeng.exe	33
PID 448 wrote to memory of 2212	448	taskeng.exe	33

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\c53059381a17db7f48cf6871b7869c48.exe
"C:\Users\Admin\AppData\Local\Temp\c53059381a17db7f48cf6871b7869c48.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2820
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2676

C:\Windows\system32\taskeng.exe
taskeng.exe {CE209C76-30CF-49BA-A779-FFED16B9D20F} S-1-5-21-312935884-697965778-3955649944-1000:MXQFNXLT\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:448
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  C:\Users\Admin\AppData\Local\Temp\svchost.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2212

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
71KB

MD5
c53059381a17db7f48cf6871b7869c48

SHA1
56afbdfcedd33f8002d4624a83ce4a07dea43454

SHA256
d462a5239f8b7933b6202c0cd440b2593ac44be6ac5e9d12b1f3f6ba675e0e2b

SHA512
85a4d82bc75cc2365668de13df983bdf4ae8d39c37161da2ef1d747eeaf1cb0b5585ea1f973b4671a725e54bd47f3d288cd6dfff2dc30ed886f968a1a18302f2

Download Submit
memory/2212-12-0x0000000000910000-0x0000000000928000-memory.dmp

Filesize
96KB

Download
memory/2820-0-0x000007FEF5573000-0x000007FEF5574000-memory.dmp

Filesize
4KB

Download
memory/2820-1-0x00000000002A0000-0x00000000002B8000-memory.dmp

Filesize
96KB

Download
memory/2820-6-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

Filesize
9.9MB

Download
memory/2820-7-0x000007FEF5573000-0x000007FEF5574000-memory.dmp

Filesize
4KB

Download
memory/2820-8-0x000007FEF5570000-0x000007FEF5F5C000-memory.dmp

Filesize
9.9MB

Download