xworm | 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b

Analysis

max time kernel
146s
max time network
147s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
27/02/2023, 09:20

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
c4067d965604f4f37a63f298b22cc4d0.exe
Size 157KB
Sample230227-la7fkach56
SHA256 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
MD5 c4067d965604f4f37a63f298b22cc4d0
SHA1 325b70cdf286d63934fe34f51dd6da3a8b672081
SHA512 dd7f7c06e2d28c84f901dbe1ee55963342ec60b08fac54e404185b70b0ef10090df797ca72e9adc42d3ba9ed32aa71f344e3f277529c92f43fc82603a5a8e12e
SSDEEP 1536:tTP0/lt9ZWAUpysZbALBYoz6M9OvW/CdEB:tTs/lt9rUpysZbAL62OvzdEB
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm persistence rat trojan

Malware Config

Signatures

Xworm
Xworm is a remote access trojan written in C#.
trojan rat 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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\Control Panel\International\Geo\Nation	c4067d965604f4f37a63f298b22cc4d0.exe

Drops startup file 2 IoCs

description	ioc	Process
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4067d965604f4f37a63f298b22cc4d0.lnk	c4067d965604f4f37a63f298b22cc4d0.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\c4067d965604f4f37a63f298b22cc4d0.lnk	c4067d965604f4f37a63f298b22cc4d0.exe

Executes dropped EXE 2 IoCs

pid	Process
5012	c4067d965604f4f37a63f298b22cc4d0.exe
3744	c4067d965604f4f37a63f298b22cc4d0.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2275444769-3691835758-4097679484-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\c4067d965604f4f37a63f298b22cc4d0 = "C:\\Users\\Admin\\AppData\\Roaming\\c4067d965604f4f37a63f298b22cc4d0.exe"	c4067d965604f4f37a63f298b22cc4d0.exe

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2596	schtasks.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1884	powershell.exe
1884	powershell.exe
212	powershell.exe
212	powershell.exe
2144	powershell.exe
2144	powershell.exe
2188	c4067d965604f4f37a63f298b22cc4d0.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	2188	c4067d965604f4f37a63f298b22cc4d0.exe
Token: SeDebugPrivilege	1884	powershell.exe
Token: SeDebugPrivilege	212	powershell.exe
Token: SeDebugPrivilege	2144	powershell.exe
Token: SeDebugPrivilege	2188	c4067d965604f4f37a63f298b22cc4d0.exe
Token: SeDebugPrivilege	5012	c4067d965604f4f37a63f298b22cc4d0.exe
Token: SeDebugPrivilege	3744	c4067d965604f4f37a63f298b22cc4d0.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
2188	c4067d965604f4f37a63f298b22cc4d0.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2188 wrote to memory of 1884	2188	c4067d965604f4f37a63f298b22cc4d0.exe	84
PID 2188 wrote to memory of 1884	2188	c4067d965604f4f37a63f298b22cc4d0.exe	84
PID 2188 wrote to memory of 212	2188	c4067d965604f4f37a63f298b22cc4d0.exe	86
PID 2188 wrote to memory of 212	2188	c4067d965604f4f37a63f298b22cc4d0.exe	86
PID 2188 wrote to memory of 2144	2188	c4067d965604f4f37a63f298b22cc4d0.exe	88
PID 2188 wrote to memory of 2144	2188	c4067d965604f4f37a63f298b22cc4d0.exe	88
PID 2188 wrote to memory of 2596	2188	c4067d965604f4f37a63f298b22cc4d0.exe	90
PID 2188 wrote to memory of 2596	2188	c4067d965604f4f37a63f298b22cc4d0.exe	90

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\c4067d965604f4f37a63f298b22cc4d0.exe
"C:\Users\Admin\AppData\Local\Temp\c4067d965604f4f37a63f298b22cc4d0.exe"
1⤵
- Checks computer location settings
- 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:2188
- 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\c4067d965604f4f37a63f298b22cc4d0.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1884
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'c4067d965604f4f37a63f298b22cc4d0.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:212
- 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\c4067d965604f4f37a63f298b22cc4d0.exe'
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2144
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "c4067d965604f4f37a63f298b22cc4d0" /tr "C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe"
  2⤵
  - Creates scheduled task(s)
  PID:2596

C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5012

C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3744

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

c4067d965604f4f37a63f298b22cc4d0.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\c4067d965604f4f37a63f298b22cc4d0.exe.log
Size 654B
SHA256 e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced
MD5 2ff39f6c7249774be85fd60a8f9a245e
SHA1 684ff36b31aedc1e587c8496c02722c6698c1c4e
SHA512 1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1
MD5 SHA1 SHA512

Submit Download

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 a31805264b8b13ce4145f272cb2830728c186c46e314b48514d636866217add5
MD5 5f0ddc7f3691c81ee14d17b419ba220d
SHA1 f0ef5fde8bab9d17c0b47137e014c91be888ee53
SHA512 2ce7c2a0833f581297c13dd88ccfcd36bf129d2b5d7718c52b1d67c97cbd8fc93abc085a040229a0fd712e880c690de7f6b996b0b47c46a091fabb7931be58d3
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 ef33f487f93c2977e92fb08d6bdcc9d48b5d1864c402f9d3fbf3e1b30e8b3b9a
MD5 d3e8199b4634731cf0a0c26c1f14f588
SHA1 7f8fae27eb80055a436a6b5457978f32673d9ad4
SHA512 806a123100dbc1ca1b27bbad5b93c3a9a840dc795127af8523333a71259a8c5ef8aefccb83ef390f2644e013f138c4b7b63c584acccb197aada0c70c038032e2
MD5 SHA1 SHA512

Submit Download

__PSScriptPolicyTest_z0kbg3ic.i3c.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_z0kbg3ic.i3c.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

c4067d965604f4f37a63f298b22cc4d0.exe

Path C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
Size 157KB
SHA256 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
MD5 c4067d965604f4f37a63f298b22cc4d0
SHA1 325b70cdf286d63934fe34f51dd6da3a8b672081
SHA512 dd7f7c06e2d28c84f901dbe1ee55963342ec60b08fac54e404185b70b0ef10090df797ca72e9adc42d3ba9ed32aa71f344e3f277529c92f43fc82603a5a8e12e
SSDEEP 1536:tTP0/lt9ZWAUpysZbALBYoz6M9OvW/CdEB:tTs/lt9rUpysZbAL62OvzdEB
MD5 SHA1 SHA512 SSDEEP

Submit Download

c4067d965604f4f37a63f298b22cc4d0.exe

Path C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
Size 157KB
SHA256 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
MD5 c4067d965604f4f37a63f298b22cc4d0
SHA1 325b70cdf286d63934fe34f51dd6da3a8b672081
SHA512 dd7f7c06e2d28c84f901dbe1ee55963342ec60b08fac54e404185b70b0ef10090df797ca72e9adc42d3ba9ed32aa71f344e3f277529c92f43fc82603a5a8e12e
SSDEEP 1536:tTP0/lt9ZWAUpysZbALBYoz6M9OvW/CdEB:tTs/lt9rUpysZbAL62OvzdEB
MD5 SHA1 SHA512 SSDEEP

Submit Download

c4067d965604f4f37a63f298b22cc4d0.exe

Path C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
Size 157KB
SHA256 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
MD5 c4067d965604f4f37a63f298b22cc4d0
SHA1 325b70cdf286d63934fe34f51dd6da3a8b672081
SHA512 dd7f7c06e2d28c84f901dbe1ee55963342ec60b08fac54e404185b70b0ef10090df797ca72e9adc42d3ba9ed32aa71f344e3f277529c92f43fc82603a5a8e12e
SSDEEP 1536:tTP0/lt9ZWAUpysZbALBYoz6M9OvW/CdEB:tTs/lt9rUpysZbAL62OvzdEB
MD5 SHA1 SHA512 SSDEEP

Submit Download

c4067d965604f4f37a63f298b22cc4d0.exe

Path C:\Users\Admin\AppData\Roaming\c4067d965604f4f37a63f298b22cc4d0.exe
Size 157KB
SHA256 6f2e22d541680c151da164b02f916a3d72da0517b2f052f7356d05e8b374690b
MD5 c4067d965604f4f37a63f298b22cc4d0
SHA1 325b70cdf286d63934fe34f51dd6da3a8b672081
SHA512 dd7f7c06e2d28c84f901dbe1ee55963342ec60b08fac54e404185b70b0ef10090df797ca72e9adc42d3ba9ed32aa71f344e3f277529c92f43fc82603a5a8e12e
SSDEEP 1536:tTP0/lt9ZWAUpysZbALBYoz6M9OvW/CdEB:tTs/lt9rUpysZbAL62OvzdEB
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/212-160-0x00000217DBF30000-0x00000217DBF40000-memory.dmp

Download

memory/212-162-0x00000217DBF30000-0x00000217DBF40000-memory.dmp

Download

memory/212-161-0x00000217DBF30000-0x00000217DBF40000-memory.dmp

Download

memory/212-159-0x00000217DBF30000-0x00000217DBF40000-memory.dmp

Download

memory/1884-145-0x000001DAC13F0000-0x000001DAC1400000-memory.dmp

Download

memory/1884-144-0x000001DAC13F0000-0x000001DAC1400000-memory.dmp

Download

memory/1884-139-0x000001DAC2960000-0x000001DAC2982000-memory.dmp

Download

memory/2188-133-0x0000000000280000-0x00000000002AC000-memory.dmp

Download

memory/2188-183-0x000000001BC60000-0x000000001BC70000-memory.dmp

Download

memory/2188-184-0x000000001BC60000-0x000000001BC70000-memory.dmp

Download