xworm | 64398384e4d50c9419134ae4ad66d01f20a4172198af10222130b6bf1a6b3747

General

Target

Sercher.exe
Size

69KB
MD5

a67e7d9cf57f128c6cd5915e2ffb135d
SHA1

acbcaa10a0349ba69f6a57db1302a6ae588f67d6
SHA256

64398384e4d50c9419134ae4ad66d01f20a4172198af10222130b6bf1a6b3747
SHA512

6349f21426ac05f50cbb3ab0dea5b6e2a7c97faa31d295f8d666a9733605918d8c4430993d0a056c8972c516ed78ec0002022af2ed5c9ed927c30be822e040d2
SSDEEP

1536:yaP+F1aMEWqEYFOHOqsHbDyGi3md+66hbArKOl37gohqm:3GOiXsTbDoJhArKO97gowm

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

127.0.0.1:16512

no-loss.gl.at.ply.gg:16512

Attributes

Install_directory
%AppData%
install_file
svchost.exe

Signatures

Detect Xworm Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2912-1-0x0000000000AA0000-0x0000000000AB8000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
execution

PowerShell
T1059.001

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2608 powershell.exe
2224 powershell.exe
2304 powershell.exe
2772 powershell.exe

pid	process
2608	powershell.exe
2224	powershell.exe
2304	powershell.exe
2772	powershell.exe

Drops startup file 2 IoCs

Processes:

Sercher.exe

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

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Sercher.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	Sercher.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.

Processes:

flow ioc

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

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

2772 powershell.exe
2608 powershell.exe
2224 powershell.exe
2304 powershell.exe

flow	ioc
2	ip-api.com

pid	process
2772	powershell.exe
2608	powershell.exe
2224	powershell.exe
2304	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

Processes:

Sercher.exepowershell.exepowershell.exepowershell.exepowershell.exe

description	pid	process
Token: SeDebugPrivilege	2912	Sercher.exe
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	2608	powershell.exe
Token: SeDebugPrivilege	2224	powershell.exe
Token: SeDebugPrivilege	2304	powershell.exe
Token: SeDebugPrivilege	2912	Sercher.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

Sercher.exe

description	pid	process	target process
PID 2912 wrote to memory of 2772	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2772	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2772	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2608	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2608	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2608	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2224	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2224	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2224	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2304	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2304	2912	Sercher.exe	powershell.exe
PID 2912 wrote to memory of 2304	2912	Sercher.exe	powershell.exe

C:\Users\Admin\AppData\Local\Temp\Sercher.exe
"C:\Users\Admin\AppData\Local\Temp\Sercher.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2912
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\Sercher.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2772
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Sercher.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2608
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2224
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2304

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
e25749f146e3d71b305775ba28ac74ac

SHA1
3df6f229eae0b4a590a93de31dc2d5781a35b1f9

SHA256
7d7285980c9c1aa199125aa01ec7663267bcbc66ff756e70d5d24943a096c178

SHA512
2617a69016b7fd03bdc1efdaf5c039878cdaa48454746e9f3ac785bec1632a01c935650b725619f83a4d02f4a1af16ee0e5bd1ad94aca43c49db71ed431be9b6

Download Submit
\??\PIPE\srvsvc

MD5
d41d8cd98f00b204e9800998ecf8427e

SHA1
da39a3ee5e6b4b0d3255bfef95601890afd80709

SHA256
e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

SHA512
cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

Download Submit
memory/2608-14-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download
memory/2608-15-0x0000000002310000-0x0000000002318000-memory.dmp

Filesize
32KB

Download
memory/2772-7-0x000000001B6C0000-0x000000001B9A2000-memory.dmp

Filesize
2.9MB

Download
memory/2772-8-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/2912-0-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2912-1-0x0000000000AA0000-0x0000000000AB8000-memory.dmp

Filesize
96KB

Download
memory/2912-2-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-31-0x000007FEF5103000-0x000007FEF5104000-memory.dmp

Filesize
4KB

Download
memory/2912-32-0x000007FEF5100000-0x000007FEF5AEC000-memory.dmp

Filesize
9.9MB

Download
memory/2912-34-0x0000000001EE0000-0x0000000001EEC000-memory.dmp

Filesize
48KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads