xworm | 15af6ab42b15ed39a5257f1e750c728accb88dc332162937f1fd22ba314b7afa

Analysis

max time kernel
294s
max time network
286s
platform
windows11-21h2_x64
resource
win11-20240508-en
resource tags

arch:x64arch:x86image:win11-20240508-enlocale:en-usos:windows11-21h2-x64system
submitted
30-06-2024 06:36

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General

Target

Packages.exe
Size

75KB
MD5

e1b71f4ba193223fc5569d6c2c8987d8
SHA1

ab0634c9bc987c434b55896cd9b1523af1280571
SHA256

15af6ab42b15ed39a5257f1e750c728accb88dc332162937f1fd22ba314b7afa
SHA512

d98ae8f4d37bdae664a4d703c5d5bc0a57f1cdc992fca0aad080863cd68b19b63e50c327de541bd9ca2a12582ecb23ff61344a3bca173574c563fa45a4d951a8
SSDEEP

1536:b61UmSLuLfh3THEpbHhE+3lDZ6BwqTD+EViiODLkhpI:eumVfVTMbHhfA9ViiODLk/I

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

193.161.193.99:22901

Ironthing-22901.portmap.host:22901

Attributes

Install_directory
%AppData%
install_file
Packages.exe

Signatures

Detect Xworm Payload 2 IoCs

Processes:

resource yara_rule

behavioral1/memory/5040-1-0x0000000000100000-0x000000000011A000-memory.dmp family_xworm
C:\Users\Admin\AppData\Roaming\Packages.exe 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

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

4996 powershell.exe
736 powershell.exe
3896 powershell.exe
1564 powershell.exe

resource	yara_rule
behavioral1/memory/5040-1-0x0000000000100000-0x000000000011A000-memory.dmp	family_xworm
C:\Users\Admin\AppData\Roaming\Packages.exe	family_xworm

pid	process
4996	powershell.exe
736	powershell.exe
3896	powershell.exe
1564	powershell.exe

Drops startup file 2 IoCs

Processes:

Packages.exe

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

Executes dropped EXE 5 IoCs

Processes:

Packages.exePackages.exePackages.exePackages.exePackages.exe

pid process

4308 Packages.exe
4788 Packages.exe
4792 Packages.exe
4660 Packages.exe
236 Packages.exe

pid	process
4308	Packages.exe
4788	Packages.exe
4792	Packages.exe
4660	Packages.exe
236	Packages.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

Packages.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3001105534-2705918504-2956618779-1000\Software\Microsoft\Windows\CurrentVersion\Run\Packages = "C:\\Users\\Admin\\AppData\\Roaming\\Packages.exe"	Packages.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.

Processes:

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

Processes:

schtasks.exe

pid process

4560 schtasks.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

powershell.exepowershell.exepowershell.exepowershell.exe

pid process

4996 powershell.exe
4996 powershell.exe
736 powershell.exe
736 powershell.exe
3896 powershell.exe
3896 powershell.exe
1564 powershell.exe
1564 powershell.exe

flow	ioc
1	ip-api.com

pid	process
4560	schtasks.exe

pid	process
4996	powershell.exe
4996	powershell.exe
736	powershell.exe
736	powershell.exe
3896	powershell.exe
3896	powershell.exe
1564	powershell.exe
1564	powershell.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

Processes:

Packages.exepowershell.exepowershell.exepowershell.exepowershell.exePackages.exePackages.exePackages.exePackages.exePackages.exe

description	pid	process
Token: SeDebugPrivilege	5040	Packages.exe
Token: SeDebugPrivilege	4996	powershell.exe
Token: SeDebugPrivilege	736	powershell.exe
Token: SeDebugPrivilege	3896	powershell.exe
Token: SeDebugPrivilege	1564	powershell.exe
Token: SeDebugPrivilege	5040	Packages.exe
Token: SeDebugPrivilege	4308	Packages.exe
Token: SeDebugPrivilege	4788	Packages.exe
Token: SeDebugPrivilege	4792	Packages.exe
Token: SeDebugPrivilege	4660	Packages.exe
Token: SeDebugPrivilege	236	Packages.exe

Suspicious use of WriteProcessMemory 10 IoCs

Processes:

Packages.exe

description	pid	process	target process
PID 5040 wrote to memory of 4996	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 4996	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 736	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 736	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 3896	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 3896	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 1564	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 1564	5040	Packages.exe	powershell.exe
PID 5040 wrote to memory of 4560	5040	Packages.exe	schtasks.exe
PID 5040 wrote to memory of 4560	5040	Packages.exe	schtasks.exe

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\Packages.exe
"C:\Users\Admin\AppData\Local\Temp\Packages.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5040

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\Packages.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4996

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Packages.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:736

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\Packages.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3896

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Packages.exe'
2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1564

C:\Windows\System32\schtasks.exe
"C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Packages" /tr "C:\Users\Admin\AppData\Roaming\Packages.exe"
2⤵
- Scheduled Task/Job: Scheduled Task
PID:4560

C:\Users\Admin\AppData\Roaming\Packages.exe
C:\Users\Admin\AppData\Roaming\Packages.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4308

C:\Users\Admin\AppData\Roaming\Packages.exe
C:\Users\Admin\AppData\Roaming\Packages.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4788

C:\Users\Admin\AppData\Roaming\Packages.exe
C:\Users\Admin\AppData\Roaming\Packages.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4792

C:\Users\Admin\AppData\Roaming\Packages.exe
C:\Users\Admin\AppData\Roaming\Packages.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4660

C:\Users\Admin\AppData\Roaming\Packages.exe
C:\Users\Admin\AppData\Roaming\Packages.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:236

Network

MITRE ATT&CK Matrix ATT&CK v13

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\Packages.exe.log
Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Filesize
2KB

MD5
627073ee3ca9676911bee35548eff2b8

SHA1
4c4b68c65e2cab9864b51167d710aa29ebdcff2e

SHA256
85b280a39fc31ba1e15fb06102a05b8405ff3b82feb181d4170f04e466dd647c

SHA512
3c5f6c03e253b83c57e8d6f0334187dbdcdf4fa549eecd36cbc1322dca6d3ca891dc6a019c49ec2eafb88f82d0434299c31e4dfaab123acb42e0546218f311fb

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
1a9fa92a4f2e2ec9e244d43a6a4f8fb9

SHA1
9910190edfaccece1dfcc1d92e357772f5dae8f7

SHA256
0ee052d5333fd5fd86bc84856fec98e045f077a7ac8051651bf7c521b9706888

SHA512
5d2361476fa22200e6f83883efe7dcb8c3fe7dae8d56e04e28a36e9ae1270c327b6aa161d92b239593da7661289d002c574446ecfd6bd19928209aae25e3ef64

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
21017c68eaf9461301de459f4f07e888

SHA1
41ff30fc8446508d4c3407c79e798cf6eaa5bb73

SHA256
03b321e48ff3328d9c230308914961fe110c4c7bc96c0a85a296745437bcb888

SHA512
956990c11c6c1baa3665ef7ef23ef6073e0a7fcff77a93b5e605a83ff1e60b916d80d45dafb06977aed90868a273569a865cf2c623e295b5157bfff0fb2be35d

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Filesize
944B

MD5
eb9dd0f1e84c3e70c5b401d33c439803

SHA1
36f90b3634d6b7c78140e762397d47845ffb944c

SHA256
c1647b091931f45c019578e5215d837bffe70f8edafae1cee39025116e8fcfd4

SHA512
1c5a3ee2a79f8653759a16f1a15ae62600ff4eedef66a16dfeab4504a1650c5222de8227a95215d42b3741d4d9ae1a985b9fbe594fffa4b2dfb969c3c5fdfab6

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_kr4w0n0m.qla.ps1
Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Packages.exe
Filesize
75KB

MD5
e1b71f4ba193223fc5569d6c2c8987d8

SHA1
ab0634c9bc987c434b55896cd9b1523af1280571

SHA256
15af6ab42b15ed39a5257f1e750c728accb88dc332162937f1fd22ba314b7afa

SHA512
d98ae8f4d37bdae664a4d703c5d5bc0a57f1cdc992fca0aad080863cd68b19b63e50c327de541bd9ca2a12582ecb23ff61344a3bca173574c563fa45a4d951a8

Download Submit
memory/4996-12-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/4996-15-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/4996-18-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/4996-14-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/4996-13-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/4996-3-0x00000241B4300000-0x00000241B4322000-memory.dmp

Filesize
136KB

Download
memory/5040-0-0x00007FF829673000-0x00007FF829675000-memory.dmp

Filesize
8KB

Download
memory/5040-54-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/5040-2-0x00007FF829670000-0x00007FF82A132000-memory.dmp

Filesize
10.8MB

Download
memory/5040-1-0x0000000000100000-0x000000000011A000-memory.dmp

Filesize
104KB

Download