xworm | ffaa5eea301ca6578ee0b3403513d77264246a77c18c8d529021045c15452940

Analysis

max time kernel
147s
max time network
158s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
22/03/2025, 06:11

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General

Target

57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
Size

338KB
MD5

5b7ccfca9393b276311cbd13b5267747
SHA1

cb246b9d728ebbb150224fd05c7a4cd7a6f25dbb
SHA256

57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a
SHA512

f86d4a976bee24a013c35990650d8f52caa1b340a741529a443578c432f50d52dd6c64738b20e3a2c989bf0969486ba52abbd02026c205a562503dd37d55ccf9
SSDEEP

6144:Y5gICebp23YUv+GIIIIIIIhIIIIIIIIIIIIIIIU:Y5g3KCYUQ

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

3.1

82.21.151.21:7000

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 5 IoCs

resource	yara_rule
behavioral31/memory/2320-1-0x0000000000E50000-0x0000000000EAA000-memory.dmp	family_xworm
behavioral31/files/0x0005000000013d08-8.dat	family_xworm
behavioral31/memory/2524-14-0x0000000000220000-0x000000000027A000-memory.dmp	family_xworm
behavioral31/memory/1200-18-0x0000000000F80000-0x0000000000FDA000-memory.dmp	family_xworm
behavioral31/memory/2496-20-0x00000000002B0000-0x000000000030A000-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\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.lnk	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.lnk	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe

Executes dropped EXE 3 IoCs

pid	Process
2524	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
1200	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
2496	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.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-1-5-21-1846800975-3917212583-2893086201-1000\Software\Microsoft\Windows\CurrentVersion\Run\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a = "C:\\Users\\Admin\\AppData\\Roaming\\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe"	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.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
2212	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeDebugPrivilege	2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
Token: SeDebugPrivilege	2524	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
Token: SeDebugPrivilege	1200	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
Token: SeDebugPrivilege	2496	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2320 wrote to memory of 2212	2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe	31
PID 2320 wrote to memory of 2212	2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe	31
PID 2320 wrote to memory of 2212	2320	57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe	31
PID 2732 wrote to memory of 2524	2732	taskeng.exe	34
PID 2732 wrote to memory of 2524	2732	taskeng.exe	34
PID 2732 wrote to memory of 2524	2732	taskeng.exe	34
PID 2732 wrote to memory of 1200	2732	taskeng.exe	36
PID 2732 wrote to memory of 1200	2732	taskeng.exe	36
PID 2732 wrote to memory of 1200	2732	taskeng.exe	36
PID 2732 wrote to memory of 2496	2732	taskeng.exe	37
PID 2732 wrote to memory of 2496	2732	taskeng.exe	37
PID 2732 wrote to memory of 2496	2732	taskeng.exe	37

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\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
"C:\Users\Admin\AppData\Local\Temp\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.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:2320
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a" /tr "C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2212

C:\Windows\system32\taskeng.exe
taskeng.exe {B47DC77E-BDEA-400F-AACE-1B416283435D} S-1-5-21-1846800975-3917212583-2893086201-1000:ZQABOPWE\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2732
- C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2524
- C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1200
- C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:2496

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a.exe

Filesize
338KB

MD5
5b7ccfca9393b276311cbd13b5267747

SHA1
cb246b9d728ebbb150224fd05c7a4cd7a6f25dbb

SHA256
57f8be0d4c7021dd7b09ec4eff55e6803ca1f11b7bb4935319b4ee8c70034b5a

SHA512
f86d4a976bee24a013c35990650d8f52caa1b340a741529a443578c432f50d52dd6c64738b20e3a2c989bf0969486ba52abbd02026c205a562503dd37d55ccf9

Download Submit
memory/1200-18-0x0000000000F80000-0x0000000000FDA000-memory.dmp

Filesize
360KB

Download
memory/2320-0-0x000007FEF5D33000-0x000007FEF5D34000-memory.dmp

Filesize
4KB

Download
memory/2320-1-0x0000000000E50000-0x0000000000EAA000-memory.dmp

Filesize
360KB

Download
memory/2320-10-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/2320-15-0x000007FEF5D30000-0x000007FEF671C000-memory.dmp

Filesize
9.9MB

Download
memory/2496-20-0x00000000002B0000-0x000000000030A000-memory.dmp

Filesize
360KB

Download
memory/2524-14-0x0000000000220000-0x000000000027A000-memory.dmp

Filesize
360KB

Download