Malware Analysis Report

2024-09-11 14:54

Sample ID 240609-kpzhtsha62
Target Loader.exe
SHA256 6af699d5b423e9a27be4422622b30d0d3e8ebdd259e192ed535c89183f266315
Tags
xworm execution rat trojan
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK Matrix

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

6af699d5b423e9a27be4422622b30d0d3e8ebdd259e192ed535c89183f266315

Threat Level: Known bad

The file Loader.exe was found to be: Known bad.

Malicious Activity Summary

xworm execution rat trojan

Xworm

Detect Xworm Payload

Xworm family

Command and Scripting Interpreter: PowerShell

Drops startup file

Checks computer location settings

Enumerates physical storage devices

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK Matrix V13

Initial Access
TA0001
Execution
TA0002
Command and Scripting Interpreter
T1059
PowerShell
T1059.001
Persistence
TA0003
Privilege Escalation
TA0004
Defense Evasion
TA0005
Credential Access
TA0006
Discovery
TA0007
Query Registry
T1012
System Information Discovery
T1082
Lateral Movement
TA0008
Collection
TA0009
Exfiltration
TA0010
Command and Control
TA0011
Impact
TA0040
Resource Development
TA0042
Reconnaissance
TA0043

Analysis: static1

Detonation Overview

Reported

2024-06-09 08:47

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm family

xworm

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-06-09 08:47

Reported

2024-06-09 08:48

Platform

win10v2004-20240426-en

Max time kernel

9s

Max time network

11s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Loader.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Checks computer location settings

Description Indicator Process Target
Key value queried \REGISTRY\USER\S-1-5-21-1162180587-977231257-2194346871-1000\Control Panel\International\Geo\Nation C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4728 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 2212 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 772 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 3048 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 3740 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4728 wrote to memory of 3740 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Loader.exe

"C:\Users\Admin\AppData\Local\Temp\Loader.exe"

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\Loader.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Loader.exe'

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\Update.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Update.exe'

Network

Country Destination Domain Proto
US 8.8.8.8:53 8.8.8.8.in-addr.arpa udp
US 8.8.8.8:53 149.220.183.52.in-addr.arpa udp
US 8.8.8.8:53 240.221.184.93.in-addr.arpa udp
US 8.8.8.8:53 20.160.190.20.in-addr.arpa udp
US 8.8.8.8:53 parents-roy.gl.at.ply.gg udp
US 147.185.221.20:13511 parents-roy.gl.at.ply.gg tcp

Files

memory/4728-0-0x00007FFE24C43000-0x00007FFE24C45000-memory.dmp

memory/4728-1-0x0000000000B60000-0x0000000000B76000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tq1kcva3.mop.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2212-7-0x0000021A57310000-0x0000021A57332000-memory.dmp

memory/2212-12-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

memory/2212-14-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

memory/2212-13-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

memory/2212-17-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

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

MD5 d85ba6ff808d9e5444a4b369f5bc2730
SHA1 31aa9d96590fff6981b315e0b391b575e4c0804a
SHA256 84739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA512 8c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249

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

MD5 d28a889fd956d5cb3accfbaf1143eb6f
SHA1 157ba54b365341f8ff06707d996b3635da8446f7
SHA256 21e5d7ccf80a293e6ba30ed728846ca19c929c52b96e2c8d34e27cd2234f1d45
SHA512 0b6d88deb9be85722e6a78d5886d49f2caf407a59e128d2b4ed74c1356f9928c40048a62731959f2460e9ff9d9feee311043d2a37abe3bb92c2b76a44281478c

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

MD5 a7cc007980e419d553568a106210549a
SHA1 c03099706b75071f36c3962fcc60a22f197711e0
SHA256 a5735921fc72189c8bf577f3911486cf031708dc8d6bc764fe3e593c0a053165
SHA512 b9aaf29403c467daef80a1ae87478afc33b78f4e1ca16189557011bb83cf9b3e29a0f85c69fa209c45201fb28baca47d31756eee07b79c6312c506e8370f7666

memory/4728-56-0x00007FFE24C40000-0x00007FFE25701000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-06-09 08:47

Reported

2024-06-09 08:48

Platform

win11-20240508-en

Max time kernel

7s

Command Line

"C:\Users\Admin\AppData\Local\Temp\Loader.exe"

Signatures

Detect Xworm Payload

Description Indicator Process Target
N/A N/A N/A N/A

Xworm

trojan rat xworm

Command and Scripting Interpreter: PowerShell

execution
Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Drops startup file

Description Indicator Process Target
File created C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Update.lnk C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Enumerates physical storage devices

Suspicious behavior: EnumeratesProcesses

Description Indicator Process Target
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
N/A N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe N/A
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe N/A

Suspicious use of WriteProcessMemory

Description Indicator Process Target
PID 4048 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 2984 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 4948 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 3988 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 3988 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 4704 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
PID 4048 wrote to memory of 4704 N/A C:\Users\Admin\AppData\Local\Temp\Loader.exe C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

Processes

C:\Users\Admin\AppData\Local\Temp\Loader.exe

"C:\Users\Admin\AppData\Local\Temp\Loader.exe"

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\Loader.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Loader.exe'

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\Update.exe'

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe

"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Update.exe'

Network

N/A

Files

memory/4048-0-0x00007FFE0ABB3000-0x00007FFE0ABB5000-memory.dmp

memory/4048-1-0x0000000000A50000-0x0000000000A66000-memory.dmp

memory/2984-4-0x000002CEFCF20000-0x000002CEFCF42000-memory.dmp

C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_qmrrjuzc.ggl.ps1

MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

memory/2984-11-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/2984-12-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/2984-13-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/2984-14-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

memory/2984-17-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp

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

MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

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

MD5 05b3cd21c1ec02f04caba773186ee8d0
SHA1 39e790bfe10abf55b74dfb3603df8fcf6b5e6edb
SHA256 911efc5cf9cbeb697543eb3242f5297e1be46dd6603a390140a9ff031ed9e1e8
SHA512 e751008b032394817beb46937fd93a73be97254c2be94dd42f22fb1306d2715c653ece16fa96eab1a3e73811936768cea6b37888437086fc6f3e3e793a2515eb

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

MD5 aa6b748cd8f3e3c0e41549529b919e21
SHA1 5a4b9721f9fb5042f6ef7afd698d5ac5216a88bb
SHA256 d7d665a42f940443efb28eb231dfe1c4062394e71fba145d6eea9ec075b0f0e8
SHA512 361c523f49428a7e430279099e669a1a8af8764653f42e83105c0da3f8e8dd3be6c1719ea8c158d8f2e8425d74457147a4683190eb4a67019b9d02be44c13534

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

MD5 2e0391d00f5bfbc34be70790f14d5edf
SHA1 fcb04d8599c23967de4f154a101be480933ab0d0
SHA256 1c0c0c86d7c736fc9fb148ac7cd6e67565dc5b76fa116ae3b000a79e91855136
SHA512 231b9cc6efb928f0748cef04f287d9204c4f7d2eb4bc27f345e9a1afc6d0675057978ca44d1a95334ee2380709aa6dbe74015fedff8f17611a64efcfb9f64d2a

memory/4048-53-0x00007FFE0ABB0000-0x00007FFE0B672000-memory.dmp