xworm | 7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888

General

Target

0x0007000000016d42-20.exe
Size

75KB
MD5

8d6e86e6e799c75bd5123534bdbf411b
SHA1

9fc526e97077ed2a5e78371fdab5ab7ecf789368
SHA256

7892c9f14967696e15b99b3eac66d65643357c9a4315f5e8210c8437c6617888
SHA512

8cd6e706c3f36d7cb1d6eed3717fd3e96863b6fcf4ee3425f7b08823b8dc364a1de215b578310a3d1fddd98f9eb648ddeafd85d8a2feed399d46fba7dba09265
SSDEEP

1536:2Z6tgBI11qoEgGBfCDYsN+bT0IrgLSUtmf6/rhtOs4eJ9SYUh:2Z1I11qoGBgYA+bgIEOe9htOs4eJjO

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

C2

45.145.41.178:1111

Attributes

Install_directory
%AppData%
install_file
Windows Defender Notification.exe

Signatures

Detect Xworm Payload 1 IoCs

resource	yara_rule
behavioral1/memory/2652-1-0x00000000001B0000-0x00000000001CA000-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
2092	powershell.exe
2196	powershell.exe
2800	powershell.exe
3060	powershell.exe

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Windows Defender Notification.lnk	0x0007000000016d42-20.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-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\Windows Defender Notification = "C:\\Users\\Admin\\AppData\\Roaming\\Windows Defender Notification.exe"	0x0007000000016d42-20.exe

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
2708	schtasks.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
2092	powershell.exe
2196	powershell.exe
2800	powershell.exe
3060	powershell.exe
2652	0x0007000000016d42-20.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	2652	0x0007000000016d42-20.exe
Token: SeDebugPrivilege	2092	powershell.exe
Token: SeDebugPrivilege	2196	powershell.exe
Token: SeDebugPrivilege	2800	powershell.exe
Token: SeDebugPrivilege	3060	powershell.exe
Token: SeDebugPrivilege	2652	0x0007000000016d42-20.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2652	0x0007000000016d42-20.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 2652 wrote to memory of 2092	2652	0x0007000000016d42-20.exe	31
PID 2652 wrote to memory of 2092	2652	0x0007000000016d42-20.exe	31
PID 2652 wrote to memory of 2092	2652	0x0007000000016d42-20.exe	31
PID 2652 wrote to memory of 2196	2652	0x0007000000016d42-20.exe	33
PID 2652 wrote to memory of 2196	2652	0x0007000000016d42-20.exe	33
PID 2652 wrote to memory of 2196	2652	0x0007000000016d42-20.exe	33
PID 2652 wrote to memory of 2800	2652	0x0007000000016d42-20.exe	35
PID 2652 wrote to memory of 2800	2652	0x0007000000016d42-20.exe	35
PID 2652 wrote to memory of 2800	2652	0x0007000000016d42-20.exe	35
PID 2652 wrote to memory of 3060	2652	0x0007000000016d42-20.exe	37
PID 2652 wrote to memory of 3060	2652	0x0007000000016d42-20.exe	37
PID 2652 wrote to memory of 3060	2652	0x0007000000016d42-20.exe	37
PID 2652 wrote to memory of 2708	2652	0x0007000000016d42-20.exe	39
PID 2652 wrote to memory of 2708	2652	0x0007000000016d42-20.exe	39
PID 2652 wrote to memory of 2708	2652	0x0007000000016d42-20.exe	39

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\0x0007000000016d42-20.exe
"C:\Users\Admin\AppData\Local\Temp\0x0007000000016d42-20.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:2652
- 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\0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2092
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '0x0007000000016d42-20.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2196
- 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\Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2800
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Windows Defender Notification.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3060
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Windows Defender Notification" /tr "C:\Users\Admin\AppData\Roaming\Windows Defender Notification.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:2708

C:\Windows\system32\taskeng.exe
taskeng.exe {8774565E-ED82-48EC-9418-1D4B30EC69AD} S-1-5-21-2039016743-699959520-214465309-1000:PIDEURYY\Admin:Interactive:[1]
1⤵
PID:1064

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
56f867f11d3bb9ddf808bb78663f3fc9

SHA1
cafc0b9470ac2acf2a26041ed0a98d284ff3beee

SHA256
e95112e888f2088e0b80e657eae38055a9ec2c028acbc7c58f6198264ae299a8

SHA512
6c627f15cb291cfc2b1b108e2f53e00a42ca9ad8e3e9272cef282f9dbee881f49a2810c5ccea7bdb5dd8bcda287d4fb33db2cb686b51e25aa3b3b4d1c5d38ef6

Download Submit
memory/2092-6-0x0000000002E10000-0x0000000002E90000-memory.dmp

Filesize
512KB

Download
memory/2092-7-0x000000001B6E0000-0x000000001B9C2000-memory.dmp

Filesize
2.9MB

Download
memory/2092-8-0x0000000002690000-0x0000000002698000-memory.dmp

Filesize
32KB

Download
memory/2196-14-0x000000001B460000-0x000000001B742000-memory.dmp

Filesize
2.9MB

Download
memory/2196-15-0x00000000026A0000-0x00000000026A8000-memory.dmp

Filesize
32KB

Download
memory/2652-0-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp

Filesize
4KB

Download
memory/2652-1-0x00000000001B0000-0x00000000001CA000-memory.dmp

Filesize
104KB

Download
memory/2652-30-0x000000001B170000-0x000000001B1F0000-memory.dmp

Filesize
512KB

Download
memory/2652-31-0x000007FEF5BA3000-0x000007FEF5BA4000-memory.dmp

Filesize
4KB

Download
memory/2652-32-0x000000001B170000-0x000000001B1F0000-memory.dmp

Filesize
512KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads