xworm | b34a6bc82276a333e07486a2f4f57715704743f39e11eec7866d5a054e865ddf

General

Target

9dd450bc1bfc21c1015f39c16c623726.exe
Size

49KB
MD5

9dd450bc1bfc21c1015f39c16c623726
SHA1

73c3e6378238a6d5ff5fba78a19ccb61a276bb8b
SHA256

b34a6bc82276a333e07486a2f4f57715704743f39e11eec7866d5a054e865ddf
SHA512

9c01168d01e6785b778caf8fdf43b274ca00aaf8d56f9b4cacd953b7ebd5375f08151f2b1990f7ee87a14fa7dee30f767630c47cb734827bc63e0b7d316243fb
SSDEEP

768:WAYbIDqaV6blSR6nhP7Irm5Fyl98i56YOjhulZzbwonH8wSpO1bNT:D6IDKSR6nhP0sFQ98i56YOjqwoH865B

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

20.ip.gl.ply.gg:58343

Mutex

ub7RI93O5DrBTB6X

Attributes

Install_directory
%AppData%
install_file
injector.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral2/memory/4604-1-0x0000000000D00000-0x0000000000D12000-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

pid	Process
2580	powershell.exe
8	powershell.exe
3704	powershell.exe
400	powershell.exe

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2753856825-3907105642-1818461144-1000\Control Panel\International\Geo\Nation	9dd450bc1bfc21c1015f39c16c623726.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	9dd450bc1bfc21c1015f39c16c623726.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\injector.lnk	9dd450bc1bfc21c1015f39c16c623726.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-1-5-21-2753856825-3907105642-1818461144-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\injector = "C:\\Users\\Admin\\AppData\\Roaming\\injector.exe"	9dd450bc1bfc21c1015f39c16c623726.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2580	powershell.exe
2580	powershell.exe
8	powershell.exe
8	powershell.exe
3704	powershell.exe
3704	powershell.exe
400	powershell.exe
400	powershell.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	4604	9dd450bc1bfc21c1015f39c16c623726.exe
Token: SeDebugPrivilege	2580	powershell.exe
Token: SeDebugPrivilege	8	powershell.exe
Token: SeDebugPrivilege	3704	powershell.exe
Token: SeDebugPrivilege	400	powershell.exe
Token: SeDebugPrivilege	4604	9dd450bc1bfc21c1015f39c16c623726.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 4604 wrote to memory of 2580	4604	9dd450bc1bfc21c1015f39c16c623726.exe	85
PID 4604 wrote to memory of 2580	4604	9dd450bc1bfc21c1015f39c16c623726.exe	85
PID 4604 wrote to memory of 8	4604	9dd450bc1bfc21c1015f39c16c623726.exe	87
PID 4604 wrote to memory of 8	4604	9dd450bc1bfc21c1015f39c16c623726.exe	87
PID 4604 wrote to memory of 3704	4604	9dd450bc1bfc21c1015f39c16c623726.exe	89
PID 4604 wrote to memory of 3704	4604	9dd450bc1bfc21c1015f39c16c623726.exe	89
PID 4604 wrote to memory of 400	4604	9dd450bc1bfc21c1015f39c16c623726.exe	91
PID 4604 wrote to memory of 400	4604	9dd450bc1bfc21c1015f39c16c623726.exe	91

C:\Users\Admin\AppData\Local\Temp\9dd450bc1bfc21c1015f39c16c623726.exe
"C:\Users\Admin\AppData\Local\Temp\9dd450bc1bfc21c1015f39c16c623726.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4604
- 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\9dd450bc1bfc21c1015f39c16c623726.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2580
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '9dd450bc1bfc21c1015f39c16c623726.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:8
- 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\injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3704
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'injector.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:400

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

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
d85ba6ff808d9e5444a4b369f5bc2730

SHA1
31aa9d96590fff6981b315e0b391b575e4c0804a

SHA256
84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f

SHA512
8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
62623d22bd9e037191765d5083ce16a3

SHA1
4a07da6872672f715a4780513d95ed8ddeefd259

SHA256
95d79fd575bbd21540e378fcbc1cd00d16f51af62ce15bae7080bb72c24e2010

SHA512
9a448b7a0d867466c2ea04ab84d2a9485d5fd20ab53b2b854f491831ee3f1d781b94d2635f7b0b35cb9f2d373cd52c67570879a56a42ed66bc9db06962ed4992

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
07a771c4f31f62b2d04e2befaa36dce7

SHA1
662952ede6c1acbb575e8149a5ac2f08edade811

SHA256
a2df2570980e1123d9af8e12a27a82d3a4d332f0e7dd44e4e225743207c099b3

SHA512
9e339a2d0bfaf5bbe5252f69061652c5880fe1233930830ca7190a65516366e05129907b1656a6790c0093ad82ac73ddee6738d0b78ecb1e3d888f467b889fe9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive

Filesize
944B

MD5
67e8893616f805af2411e2f4a1411b2a

SHA1
39bf1e1a0ddf46ce7c136972120f512d92827dcd

SHA256
ca0dfe104c1bf27f7e01999fcdabc16c6400c3da937c832c26bdbca322381d31

SHA512
164e911a9935e75c8be1a6ec3d31199a16ba2a1064da6c09d771b2a38dd7fddd142301ef55d67d90f306d3a454a1ce7b72e129ea42e44500b9b8c623a8d98b4d

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_ewkylebp.wja.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/2580-13-0x00007FFA61310000-0x00007FFA61DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2580-16-0x00007FFA61310000-0x00007FFA61DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2580-12-0x00007FFA61310000-0x00007FFA61DD1000-memory.dmp

Filesize
10.8MB

Download
memory/2580-2-0x00000207B3400000-0x00000207B3422000-memory.dmp

Filesize
136KB

Download
memory/4604-0-0x00007FFA61313000-0x00007FFA61315000-memory.dmp

Filesize
8KB

Download
memory/4604-1-0x0000000000D00000-0x0000000000D12000-memory.dmp

Filesize
72KB

Download
memory/4604-55-0x00007FFA61310000-0x00007FFA61DD1000-memory.dmp

Filesize
10.8MB

Download
memory/4604-56-0x00007FFA61310000-0x00007FFA61DD1000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads