xworm | c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da

General

Target

c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe
Size

45KB
MD5

50865a176b8488660e702360586d9095
SHA1

9243deb9dea940b01eae75f7771074d9e5ae40f4
SHA256

c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da
SHA512

1a6b5b540658adeb22c797233b834dfa7ce137708dda90659d3e62860db178f008d7cadaccc165cea63b338c7688ccce75ba1482e6c9ed7d6566a01aaad47303
SSDEEP

768:qbG5pfJFqBb6CoE0RwnuU3zQK4JTXBlirp9bqY5wu6v6QhOObOPmOi5:aG5oBDorRwuUDKbPit9bH5K6QsOSPmOk

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

C2

23.ip.gl.ply.gg:51779

Mutex

SXjK4ZMu0P1Nn0Nq

Attributes

Install_directory
%AppData%
install_file
svchost.exe

aes.plain

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/3056-1-0x00000000009D0000-0x00000000009E2000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
2736	powershell.exe
2740	powershell.exe
2780	powershell.exe
1688	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.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-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\AppData\\Roaming\\svchost.exe"	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.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
4	ip-api.com

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
2924	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2736	powershell.exe
2740	powershell.exe
2780	powershell.exe
1688	powershell.exe
3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe
Token: SeDebugPrivilege	2736	powershell.exe
Token: SeDebugPrivilege	2740	powershell.exe
Token: SeDebugPrivilege	2780	powershell.exe
Token: SeDebugPrivilege	1688	powershell.exe
Token: SeDebugPrivilege	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 2736	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	31
PID 3056 wrote to memory of 2736	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	31
PID 3056 wrote to memory of 2736	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	31
PID 3056 wrote to memory of 2740	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	33
PID 3056 wrote to memory of 2740	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	33
PID 3056 wrote to memory of 2740	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	33
PID 3056 wrote to memory of 2780	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	35
PID 3056 wrote to memory of 2780	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	35
PID 3056 wrote to memory of 2780	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	35
PID 3056 wrote to memory of 1688	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	37
PID 3056 wrote to memory of 1688	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	37
PID 3056 wrote to memory of 1688	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	37
PID 3056 wrote to memory of 2924	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	39
PID 3056 wrote to memory of 2924	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	39
PID 3056 wrote to memory of 2924	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	39
PID 3056 wrote to memory of 2036	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	42
PID 3056 wrote to memory of 2036	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	42
PID 3056 wrote to memory of 2036	3056	c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe	42

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\c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe
"C:\Users\Admin\AppData\Local\Temp\c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.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:3056
- 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\c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2736
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'c9faa2b4ac0f4502e84433b2636cf532960d2065e6089f74b8a18afe915a84da.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2740
- 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:2780
- 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:1688
- 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"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2924
- C:\Windows\system32\WerFault.exe
  C:\Windows\system32\WerFault.exe -u -p 3056 -s 1736
  2⤵
  PID:2036

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

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

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

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
a0991760b23aa21bcc78e60f8388d988

SHA1
9f035c199249fb37beb7aac56388d2c88ff661f0

SHA256
50883a3685f86364f378411f56f783fa914beff8e14da62401cdaef7f50ad057

SHA512
194bb4758d6ed7b67665c70a28add7fd0ab3b805923ad6b216591c5e46e88bab384f52ed54c010aac8d1d679e8748f2bb5a09a21f3cb3b7c85b41728f4f47ed8

Download Submit
memory/2736-7-0x00000000028B0000-0x0000000002930000-memory.dmp

Filesize
512KB

Download
memory/2736-8-0x000000001B840000-0x000000001BB22000-memory.dmp

Filesize
2.9MB

Download
memory/2736-9-0x0000000001E60000-0x0000000001E68000-memory.dmp

Filesize
32KB

Download
memory/2740-15-0x000000001B5B0000-0x000000001B892000-memory.dmp

Filesize
2.9MB

Download
memory/2740-16-0x0000000002990000-0x0000000002998000-memory.dmp

Filesize
32KB

Download
memory/3056-0-0x000007FEF58B3000-0x000007FEF58B4000-memory.dmp

Filesize
4KB

Download
memory/3056-1-0x00000000009D0000-0x00000000009E2000-memory.dmp

Filesize
72KB

Download
memory/3056-2-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download
memory/3056-33-0x000007FEF58B0000-0x000007FEF629C000-memory.dmp

Filesize
9.9MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads