xworm | 11663edd452b775ef1547956aae32121b71d0fbd235f7a926ad0932fa4243e5c

Analysis

max time kernel
140s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
02-11-2024 20:00

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General

Target

2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Size

5.3MB
MD5

41142f7b082b159c08fccab6be1378b1
SHA1

0be691768a797e4585535d7c8411097565da7305
SHA256

11663edd452b775ef1547956aae32121b71d0fbd235f7a926ad0932fa4243e5c
SHA512

1709ff4363ef253bc35eaac6196cd85c209052e5d73666556879e719e9ab779cb7c46e14cd6241dcebd98d6774ab9523f14753b3d7a36ad85f1f23f63c4f127b
SSDEEP

49152:i/u5iFq3MEwoDEAy7AfOU/zXNUfEeXAxhF2rl/IuOryOvKODjj3POMjUfkptVxp/:5OU/jIEeQfoR/IuOFVjUu5

Score

10^/10

xworm discovery persistence rat trojan

Malware Config

Extracted

Family

xworm

192.168.68.1:7000

Attributes

Install_directory
%AppData%
install_file
XClient.exe

Signatures

Detect Xworm Payload 10 IoCs

resource	yara_rule
behavioral2/memory/1496-13-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/1496-15-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/1496-16-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/files/0x0007000000023c90-24.dat	family_xworm
behavioral2/memory/4520-91-0x0000000000E40000-0x0000000000E5C000-memory.dmp	family_xworm
behavioral2/memory/2936-158-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/2936-240-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/2936-241-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/2936-245-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm
behavioral2/memory/2936-269-0x0000000000400000-0x00000000004D5000-memory.dmp	family_xworm

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

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Key value queried	\REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation	Synaptics.exe

Executes dropped EXE 4 IoCs

pid	Process
4520	._cache_2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
4640	Synaptics.exe
2936	Synaptics.exe
1264	._cache_Synaptics.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\????? = "C:\\ProgramData\\Synaptics\\Synaptics.exe"	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.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
20	ip-api.com

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 4576 set thread context of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4640 set thread context of 2936	4640	Synaptics.exe	90

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 4 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	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Synaptics.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Modifies registry class 2 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\	Synaptics.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3772	EXCEL.EXE

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4520	._cache_2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
Token: SeDebugPrivilege	1264	._cache_Synaptics.exe

Suspicious use of SetWindowsHookEx 4 IoCs

pid	Process
3772	EXCEL.EXE
3772	EXCEL.EXE
3772	EXCEL.EXE
3772	EXCEL.EXE

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 4576 wrote to memory of 1496	4576	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	86
PID 1496 wrote to memory of 4520	1496	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	88
PID 1496 wrote to memory of 4520	1496	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	88
PID 1496 wrote to memory of 4640	1496	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	89
PID 1496 wrote to memory of 4640	1496	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	89
PID 1496 wrote to memory of 4640	1496	2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe	89
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 4640 wrote to memory of 2936	4640	Synaptics.exe	90
PID 2936 wrote to memory of 1264	2936	Synaptics.exe	93
PID 2936 wrote to memory of 1264	2936	Synaptics.exe	93

C:\Users\Admin\AppData\Local\Temp\2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
"C:\Users\Admin\AppData\Local\Temp\2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4576
- C:\Users\Admin\AppData\Local\Temp\2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
  "C:\Users\Admin\AppData\Local\Temp\2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe"
  2⤵
  - Checks computer location settings
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1496
- - C:\Users\Admin\AppData\Local\Temp\._cache_2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe
    "C:\Users\Admin\AppData\Local\Temp\._cache_2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of AdjustPrivilegeToken
    PID:4520
- - C:\ProgramData\Synaptics\Synaptics.exe
    "C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:4640
  - - C:\ProgramData\Synaptics\Synaptics.exe
      "C:\ProgramData\Synaptics\Synaptics.exe"
      4⤵
      Checks computer location settings
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Modifies registry class
      Suspicious use of WriteProcessMemory
      PID:2936
    - - C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe
        
        "C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"
        5⤵
        Executes dropped EXE
        Suspicious use of AdjustPrivilegeToken
        
        PID:1264

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:3772

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

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\ProgramData\Synaptics\Synaptics.exe

Filesize
5.3MB

MD5
41142f7b082b159c08fccab6be1378b1

SHA1
0be691768a797e4585535d7c8411097565da7305

SHA256
11663edd452b775ef1547956aae32121b71d0fbd235f7a926ad0932fa4243e5c

SHA512
1709ff4363ef253bc35eaac6196cd85c209052e5d73666556879e719e9ab779cb7c46e14cd6241dcebd98d6774ab9523f14753b3d7a36ad85f1f23f63c4f127b

Download Submit
C:\Users\Admin\AppData\Local\Temp\._cache_2024-11-02_41142f7b082b159c08fccab6be1378b1_avoslocker_hijackloader.exe

Filesize
84KB

MD5
1a3d5746f15e741761a3704a7ff2ff7c

SHA1
5e1df3c61ed0fc213c6e306346465f7283b6effe

SHA256
1a947325f5be1434f642e2ade72d8fcbe7f5aadc000719c6a7119da1ef5ef601

SHA512
054cc94ad5e69d03ec377fdd13dbe4bc060456d4d7032e846a6f908b51b8e4bf572b17d360087fb99cd72574c52eae573e3ddc121c7c8e1c820472bcf0c59903

Download Submit
C:\Users\Admin\AppData\Local\Temp\5BjRTHPq.xlsm

Filesize
17KB

MD5
e566fc53051035e1e6fd0ed1823de0f9

SHA1
00bc96c48b98676ecd67e81a6f1d7754e4156044

SHA256
8e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15

SHA512
a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04

Download Submit
memory/1496-11-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-12-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-5-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-9-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-13-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-15-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-6-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-7-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/1496-19-0x00000000033B0000-0x00000000033B1000-memory.dmp

Filesize
4KB

Download
memory/1496-16-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2936-245-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2936-240-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2936-241-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2936-269-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/2936-158-0x0000000000400000-0x00000000004D5000-memory.dmp

Filesize
852KB

Download
memory/3772-221-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

Filesize
64KB

Download
memory/3772-228-0x00007FFC5B910000-0x00007FFC5B920000-memory.dmp

Filesize
64KB

Download
memory/3772-229-0x00007FFC5B910000-0x00007FFC5B920000-memory.dmp

Filesize
64KB

Download
memory/3772-223-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

Filesize
64KB

Download
memory/3772-225-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

Filesize
64KB

Download
memory/3772-224-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

Filesize
64KB

Download
memory/3772-222-0x00007FFC5E270000-0x00007FFC5E280000-memory.dmp

Filesize
64KB

Download
memory/4520-91-0x0000000000E40000-0x0000000000E5C000-memory.dmp

Filesize
112KB

Download
memory/4520-220-0x00007FFC7EEA0000-0x00007FFC7F961000-memory.dmp

Filesize
10.8MB

Download
memory/4520-90-0x00007FFC7EEA3000-0x00007FFC7EEA5000-memory.dmp

Filesize
8KB

Download
memory/4520-227-0x00007FFC7EEA0000-0x00007FFC7F961000-memory.dmp

Filesize
10.8MB

Download
memory/4576-0-0x000000007455E000-0x000000007455F000-memory.dmp

Filesize
4KB

Download
memory/4576-70-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4576-18-0x0000000074550000-0x0000000074D00000-memory.dmp

Filesize
7.7MB

Download
memory/4576-4-0x0000000005C10000-0x0000000005C18000-memory.dmp

Filesize
32KB

Download
memory/4576-3-0x0000000003690000-0x000000000369E000-memory.dmp

Filesize
56KB

Download
memory/4576-2-0x0000000006210000-0x00000000067B4000-memory.dmp

Filesize
5.6MB

Download
memory/4576-1-0x0000000000D20000-0x0000000001274000-memory.dmp

Filesize
5.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads