xworm | a5728f8fd33c77818782d3eef567b77d1586b1927696affced63d494691edbe6

Analysis

max time kernel
1796s
max time network
1631s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01/07/2024, 09:15

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General

Target

sv.exe
Size

63KB
MD5

c095a62b525e62244cad230e696028cf
SHA1

67232c186d3efe248b540f1f2fe3382770b5074a
SHA256

a5728f8fd33c77818782d3eef567b77d1586b1927696affced63d494691edbe6
SHA512

5ba859d89a9277d9b6243f461991cc6472d001cdea52d9fcfba3cbead88fbc69d9dfce076b1fdeaf0d1cd21fe4cace54f1cefe1c352d70cc8fa2898fe1b61fb0
SSDEEP

1536:unjFXblMp3wgDkbivVSm16KTOKjLIJXc:unrAwgDkbicmbOKj0JM

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

amount-acceptance.gl.at.ply.gg:7420

Attributes

Install_directory
%ProgramData%
install_file
svhost.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral4/memory/3412-1-0x00000000009A0000-0x00000000009B6000-memory.dmp	family_xworm
behavioral4/files/0x000c000000022f51-59.dat	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
3640	powershell.exe
3296	powershell.exe
1912	powershell.exe
2332	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-1-5-21-1337824034-2731376981-3755436523-1000\Control Panel\International\Geo\Nation	sv.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 30 IoCs

pid	Process
3444	svhost.exe
4252	svhost.exe
688	svhost.exe
392	svhost.exe
1404	svhost.exe
1456	svhost.exe
4204	svhost.exe
3216	svhost.exe
3968	svhost.exe
980	svhost.exe
4264	svhost.exe
740	svhost.exe
3256	svhost.exe
2840	svhost.exe
3800	svhost.exe
704	svhost.exe
2916	svhost.exe
980	svhost.exe
4564	svhost.exe
972	svhost.exe
2040	svhost.exe
4440	svhost.exe
3140	svhost.exe
688	svhost.exe
4200	svhost.exe
5084	svhost.exe
2180	svhost.exe
3556	svhost.exe
2752	svhost.exe
1628	svhost.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-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\svhost = "C:\\ProgramData\\svhost.exe"	sv.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
4864	schtasks.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
3640	powershell.exe
3640	powershell.exe
3296	powershell.exe
3296	powershell.exe
1912	powershell.exe
1912	powershell.exe
2332	powershell.exe
2332	powershell.exe

Suspicious use of AdjustPrivilegeToken 36 IoCs

description	pid	Process
Token: SeDebugPrivilege	3412	sv.exe
Token: SeDebugPrivilege	3640	powershell.exe
Token: SeDebugPrivilege	3296	powershell.exe
Token: SeDebugPrivilege	1912	powershell.exe
Token: SeDebugPrivilege	2332	powershell.exe
Token: SeDebugPrivilege	3412	sv.exe
Token: SeDebugPrivilege	3444	svhost.exe
Token: SeDebugPrivilege	4252	svhost.exe
Token: SeDebugPrivilege	688	svhost.exe
Token: SeDebugPrivilege	392	svhost.exe
Token: SeDebugPrivilege	1404	svhost.exe
Token: SeDebugPrivilege	1456	svhost.exe
Token: SeDebugPrivilege	4204	svhost.exe
Token: SeDebugPrivilege	3216	svhost.exe
Token: SeDebugPrivilege	3968	svhost.exe
Token: SeDebugPrivilege	980	svhost.exe
Token: SeDebugPrivilege	4264	svhost.exe
Token: SeDebugPrivilege	740	svhost.exe
Token: SeDebugPrivilege	3256	svhost.exe
Token: SeDebugPrivilege	2840	svhost.exe
Token: SeDebugPrivilege	3800	svhost.exe
Token: SeDebugPrivilege	704	svhost.exe
Token: SeDebugPrivilege	2916	svhost.exe
Token: SeDebugPrivilege	980	svhost.exe
Token: SeDebugPrivilege	4564	svhost.exe
Token: SeDebugPrivilege	972	svhost.exe
Token: SeDebugPrivilege	2040	svhost.exe
Token: SeDebugPrivilege	4440	svhost.exe
Token: SeDebugPrivilege	3140	svhost.exe
Token: SeDebugPrivilege	688	svhost.exe
Token: SeDebugPrivilege	4200	svhost.exe
Token: SeDebugPrivilege	5084	svhost.exe
Token: SeDebugPrivilege	2180	svhost.exe
Token: SeDebugPrivilege	3556	svhost.exe
Token: SeDebugPrivilege	2752	svhost.exe
Token: SeDebugPrivilege	1628	svhost.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 3412 wrote to memory of 3640	3412	sv.exe	81
PID 3412 wrote to memory of 3640	3412	sv.exe	81
PID 3412 wrote to memory of 3296	3412	sv.exe	83
PID 3412 wrote to memory of 3296	3412	sv.exe	83
PID 3412 wrote to memory of 1912	3412	sv.exe	85
PID 3412 wrote to memory of 1912	3412	sv.exe	85
PID 3412 wrote to memory of 2332	3412	sv.exe	87
PID 3412 wrote to memory of 2332	3412	sv.exe	87
PID 3412 wrote to memory of 4864	3412	sv.exe	89
PID 3412 wrote to memory of 4864	3412	sv.exe	89

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\sv.exe
"C:\Users\Admin\AppData\Local\Temp\sv.exe"
1⤵
- Checks computer location settings
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3412
- 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\sv.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3640
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'sv.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3296
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svhost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1912
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svhost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2332
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svhost" /tr "C:\ProgramData\svhost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4864

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3444

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4252

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:688

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:392

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1404

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1456

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4204

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3216

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3968

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:980

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4264

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:740

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3256

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2840

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3800

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:704

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2916

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:980

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4564

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:972

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2040

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4440

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3140

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:688

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4200

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5084

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2180

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3556

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2752

C:\ProgramData\svhost.exe
C:\ProgramData\svhost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1628

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\ProgramData\svhost.exe

Filesize
63KB

MD5
c095a62b525e62244cad230e696028cf

SHA1
67232c186d3efe248b540f1f2fe3382770b5074a

SHA256
a5728f8fd33c77818782d3eef567b77d1586b1927696affced63d494691edbe6

SHA512
5ba859d89a9277d9b6243f461991cc6472d001cdea52d9fcfba3cbead88fbc69d9dfce076b1fdeaf0d1cd21fe4cace54f1cefe1c352d70cc8fa2898fe1b61fb0

Download Submit
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\CLR_v4.0\UsageLogs\svhost.exe.log

Filesize
654B

MD5
2ff39f6c7249774be85fd60a8f9a245e

SHA1
684ff36b31aedc1e587c8496c02722c6698c1c4e

SHA256
e1b91642d85d98124a6a31f710e137ab7fd90dec30e74a05ab7fcf3b7887dced

SHA512
1d7e8b92ef4afd463d62cfa7e8b9d1799db5bf2a263d3cd7840df2e0a1323d24eb595b5f8eb615c6cb15f9e3a7b4fc99f8dd6a3d34479222e966ec708998aed1

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

Filesize
944B

MD5
d28a889fd956d5cb3accfbaf1143eb6f

SHA1
157ba54b365341f8ff06707d996b3635da8446f7

SHA256
21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45

SHA512
0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

Filesize
944B

MD5
ba169f4dcbbf147fe78ef0061a95e83b

SHA1
92a571a6eef49fff666e0f62a3545bcd1cdcda67

SHA256
5ef1421e19fde4bc03cd825dd7d6c0e7863f85fd8f0aa4a4d4f8d555dc7606d1

SHA512
8d2e5e552210dcda684682538bc964fdd8a8ff5b24cc2cc8af813729f0202191f98eb42d38d2355df17ae620fe401aad6ceaedaed3b112fdacd32485a3a0c07c

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

Filesize
944B

MD5
b26240b19ea86e08a9e234e616cb8f26

SHA1
618df91cb6a086e0927ceb503ffbbacaab18e655

SHA256
ba89dd0d54e67c3fd8bbeb8684e76181585c9bbfa791cb1d69e42c6ca653b888

SHA512
b2a91691c157ae38c6d86ad97e33cf60c2a17dcfe7bd695b03a28bb628c8b33c2ab6dec67425e5d401422028c9c1ce63172843ea48d613b963149a2284e26f3c

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_eiqwgmab.4xr.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
memory/3412-56-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3412-0-0x00007FFEE9C43000-0x00007FFEE9C45000-memory.dmp

Filesize
8KB

Download
memory/3412-57-0x00007FFEE9C43000-0x00007FFEE9C45000-memory.dmp

Filesize
8KB

Download
memory/3412-58-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3412-1-0x00000000009A0000-0x00000000009B6000-memory.dmp

Filesize
88KB

Download
memory/3640-17-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3640-14-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3640-13-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3640-12-0x00007FFEE9C40000-0x00007FFEEA701000-memory.dmp

Filesize
10.8MB

Download
memory/3640-11-0x00000204F49E0000-0x00000204F4A02000-memory.dmp

Filesize
136KB

Download