xworm | e63f04c2735e3d0ee6742d58593e7864e659d09ba93918c8beaa95cb009743f6

General

Target

XWorm V5.6.7.zip
Size

24.9MB
MD5

2213698ec3e3c474acc535dc58071035
SHA1

fcb9aaa7b05e7078e0e244fb0a71ff5cefeb4ce5
SHA256

e63f04c2735e3d0ee6742d58593e7864e659d09ba93918c8beaa95cb009743f6
SHA512

f03eb21e4f993568ea1d633b86b4584f618cab4874f149e3b5bc2fec71a333045b3cd79e217290100ca34bec0233c226e40ec45593e29ecfa4f817fca8853022
SSDEEP

786432:6ChH2a2UxfDfgSnVpgXhrCT0kw0Q/XbAtILAfoJbx4:ya2UxfDfgSYXhrCTvbQDAt4AfoJbx4

Score

10^/10

xworm persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:3389

174.95.87.60:3389

Attributes

Install_directory
%AppData%
install_file
svchost.exe
telegram
https://api.telegram.org/bot7315431127:AAHNQnt1KGR6ATW9fmm8u_T48ehPVRRDyWk

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\7zOC216B3F7\Xworm V5.6.exe	family_xworm
behavioral2/memory/2244-255-0x0000000000CE0000-0x0000000000CFA000-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 1 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

Xworm V5.6.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation	Xworm V5.6.exe

Drops startup file 2 IoCs

Processes:

Xworm V5.6.exe

description	ioc	process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	Xworm V5.6.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	Xworm V5.6.exe

Executes dropped EXE 8 IoCs

Processes:

Xworm V5.6.exeFixer.exeXworm V5.6.exeXworm V5.6.exeXworm V5.6.exesvchost.exesvchost.exesvchost.exe

pid process

2244 Xworm V5.6.exe
540 Fixer.exe
4956 Xworm V5.6.exe
4208 Xworm V5.6.exe
1684 Xworm V5.6.exe
3088 svchost.exe
4664 svchost.exe
4684 svchost.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Xworm V5.6.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	Xworm V5.6.exe

Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.

Processes:

flow ioc

23 ip-api.com
58 ip-api.com
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

flow	ioc
23	ip-api.com
58	ip-api.com

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

Fixer.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemManufacturer	Fixer.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemVersion	Fixer.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS	Fixer.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs
adware spyware

Modify Registry
T1112

Processes:

Fixer.exe

description ioc process

Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\TypedURLs Fixer.exe
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

Processes:

schtasks.exe

pid process

3868 schtasks.exe
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

Xworm V5.6.exe

pid process

2244 Xworm V5.6.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\TypedURLs	Fixer.exe

pid	process
3868	schtasks.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

Processes:

Xworm V5.6.exe7zFM.exeFixer.exe

pid	process
2244	Xworm V5.6.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
1136	Fixer.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe
2244	Xworm V5.6.exe

Suspicious behavior: GetForegroundWindowSpam 2 IoCs

Processes:

7zFM.exeFixer.exe

pid process

4396 7zFM.exe
1136 Fixer.exe

pid	process
4396	7zFM.exe
1136	Fixer.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

Processes:

7zFM.exeXworm V5.6.exeXworm V5.6.exeXworm V5.6.exeXworm V5.6.exesvchost.exeXworm V5.6.exeXworm V5.6.exeAUDIODG.EXEXworm V5.6.exeXworm V5.6.exesvchost.exeFixer.exesvchost.exe

description	pid	process
Token: SeRestorePrivilege	4396	7zFM.exe
Token: 35	4396	7zFM.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeDebugPrivilege	2244	Xworm V5.6.exe
Token: SeDebugPrivilege	2244	Xworm V5.6.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeDebugPrivilege	4956	Xworm V5.6.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeDebugPrivilege	4208	Xworm V5.6.exe
Token: SeSecurityPrivilege	4396	7zFM.exe
Token: SeDebugPrivilege	1684	Xworm V5.6.exe
Token: SeDebugPrivilege	3088	svchost.exe
Token: SeDebugPrivilege	892	Xworm V5.6.exe
Token: SeDebugPrivilege	4344	Xworm V5.6.exe
Token: 33	1048	AUDIODG.EXE
Token: SeIncBasePriorityPrivilege	1048	AUDIODG.EXE
Token: SeDebugPrivilege	624	Xworm V5.6.exe
Token: SeDebugPrivilege	4452	Xworm V5.6.exe
Token: SeDebugPrivilege	4664	svchost.exe
Token: SeDebugPrivilege	1136	Fixer.exe
Token: SeDebugPrivilege	4684	svchost.exe

Suspicious use of FindShellTrayWindow 9 IoCs

Processes:

7zFM.exeFixer.exe

pid process

4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
4396 7zFM.exe
1136 Fixer.exe
Suspicious use of SendNotifyMessage 1 IoCs

Processes:

Fixer.exe

pid process

1136 Fixer.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

Xworm V5.6.exe

pid process

2244 Xworm V5.6.exe

pid	process
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
4396	7zFM.exe
1136	Fixer.exe

pid	process
1136	Fixer.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

7zFM.exeXworm V5.6.exe

description	pid	process	target process
PID 4396 wrote to memory of 2244	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 2244	4396	7zFM.exe	Xworm V5.6.exe
PID 2244 wrote to memory of 3868	2244	Xworm V5.6.exe	schtasks.exe
PID 2244 wrote to memory of 3868	2244	Xworm V5.6.exe	schtasks.exe
PID 4396 wrote to memory of 540	4396	7zFM.exe	Fixer.exe
PID 4396 wrote to memory of 540	4396	7zFM.exe	Fixer.exe
PID 4396 wrote to memory of 4956	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 4956	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 4208	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 4208	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 1684	4396	7zFM.exe	Xworm V5.6.exe
PID 4396 wrote to memory of 1684	4396	7zFM.exe	Xworm V5.6.exe

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:\Program Files\7-Zip\7zFM.exe
"C:\Program Files\7-Zip\7zFM.exe" "C:\Users\Admin\AppData\Local\Temp\XWorm V5.6.7.zip"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\7zOC216B3F7\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC216B3F7\Xworm V5.6.exe"
  2⤵
  - Checks computer location settings
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:2244
- - 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\Roaming\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:3868
- C:\Users\Admin\AppData\Local\Temp\7zOC2154E38\Fixer.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC2154E38\Fixer.exe"
  2⤵
  - Executes dropped EXE
  PID:540
- C:\Users\Admin\AppData\Local\Temp\7zOC21C4E68\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC21C4E68\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4956
- C:\Users\Admin\AppData\Local\Temp\7zOC211F768\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC211F768\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:4208
- C:\Users\Admin\AppData\Local\Temp\7zOC2142568\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\7zOC2142568\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of AdjustPrivilegeToken
  PID:1684

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3088

C:\Windows\System32\rundll32.exe
C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
1⤵
PID:1320

C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe
"C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:892

C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Fixer.exe
"C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Fixer.exe"
1⤵
- Enumerates system info in registry
- Modifies Internet Explorer settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1136

C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe
"C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4344

C:\Windows\system32\wbem\WmiApSrv.exe
C:\Windows\system32\wbem\WmiApSrv.exe
1⤵
PID:2572

C:\Windows\system32\AUDIODG.EXE
C:\Windows\system32\AUDIODG.EXE 0x474 0x4a0
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:1048

C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe
"C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:624

C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe
"C:\Users\Admin\Documents\XWorm V5.6.7\XWorm V5.6.7z - Copy\XWorm V5.6\Xworm V5.6.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:4452

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4664

C:\Users\Admin\AppData\Roaming\svchost.exe
C:\Users\Admin\AppData\Roaming\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4684

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

3

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Xworm V5.6.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zOC2154E38\Fixer.exe

Filesize
14.9MB

MD5
56ccb739926a725e78a7acf9af52c4bb

SHA1
5b01b90137871c3c8f0d04f510c4d56b23932cbc

SHA256
90f58865f265722ab007abb25074b3fc4916e927402552c6be17ef9afac96405

SHA512
2fee662bc4a1a36ce7328b23f991fa4a383b628839e403d6eb6a9533084b17699a6c939509867a86e803aafef2f9def98fa9305b576dad754aa7f599920c19a1

Download Submit
C:\Users\Admin\AppData\Local\Temp\7zOC216B3F7\Xworm V5.6.exe

Filesize
77KB

MD5
2db21ca82aaaa721b157c717dd5adfbc

SHA1
c0b24f8ba7443e2397e22db57b10211d42860104

SHA256
d06c496dd31cf73bac7ced84a6282d7726f4d72058797ab3125e6a990ce34447

SHA512
89acce1664d73fd167aba289965adfbad06a7b623303cbaac50a1307ae6bd707cd15165ec86c16e8ad5659317f8fe26d8d52d1c29c3f8dd759bb6686420da9b0

Download Submit
C:\Users\Admin\AppData\Local\Temp\XWorm V5.6.7z - Copy\XWorm V5.6\Icons\icon (15).ico

Filesize
361KB

MD5
e3143e8c70427a56dac73a808cba0c79

SHA1
63556c7ad9e778d5bd9092f834b5cc751e419d16

SHA256
b2f57a23ecc789c1bbf6037ac0825bf98babc7bf0c5d438af5e2767a27a79188

SHA512
74e0f4b55625df86a87b9315e4007be8e05bbecca4346a6ea06ef5b1528acb5a8bb636ef3e599a3820dbddcf69563a0a22e2c1062c965544fd75ec96fd9803fc

Download Submit
memory/540-277-0x00000214AC830000-0x00000214AD718000-memory.dmp

Filesize
14.9MB

Download
memory/1136-325-0x0000021C33C00000-0x0000021C33DF4000-memory.dmp

Filesize
2.0MB

Download
memory/2244-254-0x00007FFCF9993000-0x00007FFCF9995000-memory.dmp

Filesize
8KB

Download
memory/2244-255-0x0000000000CE0000-0x0000000000CFA000-memory.dmp

Filesize
104KB

Download
memory/2244-256-0x00007FFCF9990000-0x00007FFCFA451000-memory.dmp

Filesize
10.8MB

Download
memory/2244-261-0x00007FFCF9993000-0x00007FFCF9995000-memory.dmp

Filesize
8KB

Download
memory/2244-264-0x00007FFCF9990000-0x00007FFCFA451000-memory.dmp

Filesize
10.8MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads