xworm | c2a9fefda9159dd2712510c1c9077a1885d0ebc45251285dad95ba7184b98856

Analysis

max time kernel
146s
max time network
153s
platform
windows11-21h2_x64
resource
win11-20241023-en
resource tags

arch:x64arch:x86image:win11-20241023-enlocale:en-usos:windows11-21h2-x64system
submitted
17-11-2024 17:00

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General

Target

XwormLoader.exe
Size

7.9MB
MD5

5b757c6d0af650a77ba1bf7edea18b36
SHA1

c2ee4e12ff4b70511dbcab25dbf8b0d45f2d52b3
SHA256

c2a9fefda9159dd2712510c1c9077a1885d0ebc45251285dad95ba7184b98856
SHA512

93ca04887c63c3a0a4a5d42c48d0f4f7cc7fe7f6dad4dd45136ac048639d2edab66a2d2459779b9a2a075fa8981ea40567b34e5ed0535c1deecfe5e838385960
SSDEEP

196608:T7b4C6XrL5HfZBEhl3xZi5OslC9+PWbXooVl41u1mMFsr5:T7yvRZBEP3xZi5Oso+PWbXooL4Sa

Score

10^/10

xworm execution rat trojan

Malware Config

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral4/files/0x000600000002a868-12.dat	family_xworm
behavioral4/memory/3264-20-0x0000000000B60000-0x0000000000B8A000-memory.dmp	family_xworm

Xworm
Xworm is a remote access trojan written in C#.
trojan rat xworm
Xworm family
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
664	powershell.exe
3332	powershell.exe
2284	powershell.exe
2680	powershell.exe

.NET Reactor proctector 2 IoCs

Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

resource	yara_rule
behavioral4/files/0x000600000002a868-12.dat	net_reactor
behavioral4/memory/3264-20-0x0000000000B60000-0x0000000000B8A000-memory.dmp	net_reactor

Executes dropped EXE 4 IoCs

pid	Process
3264	svchost.exe
2676	Xworm V5.6.exe
1636	svchost.exe
5040	svchost.exe

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

System Information Discovery
T1082

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
3908	timeout.exe

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
1880	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
3264	svchost.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
664	powershell.exe
664	powershell.exe
3332	powershell.exe
3332	powershell.exe
2284	powershell.exe
2284	powershell.exe
2680	powershell.exe
2680	powershell.exe
3264	svchost.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	340	XwormLoader.exe
Token: SeDebugPrivilege	3264	svchost.exe
Token: SeDebugPrivilege	664	powershell.exe
Token: SeDebugPrivilege	3332	powershell.exe
Token: SeDebugPrivilege	2284	powershell.exe
Token: SeDebugPrivilege	2680	powershell.exe
Token: SeDebugPrivilege	1636	svchost.exe
Token: SeDebugPrivilege	5040	svchost.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
3264	svchost.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 340 wrote to memory of 3264	340	XwormLoader.exe	80
PID 340 wrote to memory of 3264	340	XwormLoader.exe	80
PID 340 wrote to memory of 2676	340	XwormLoader.exe	81
PID 340 wrote to memory of 2676	340	XwormLoader.exe	81
PID 340 wrote to memory of 248	340	XwormLoader.exe	82
PID 340 wrote to memory of 248	340	XwormLoader.exe	82
PID 248 wrote to memory of 3908	248	cmd.exe	84
PID 248 wrote to memory of 3908	248	cmd.exe	84
PID 3264 wrote to memory of 664	3264	svchost.exe	85
PID 3264 wrote to memory of 664	3264	svchost.exe	85
PID 3264 wrote to memory of 3332	3264	svchost.exe	87
PID 3264 wrote to memory of 3332	3264	svchost.exe	87
PID 3264 wrote to memory of 2284	3264	svchost.exe	89
PID 3264 wrote to memory of 2284	3264	svchost.exe	89
PID 3264 wrote to memory of 2680	3264	svchost.exe	91
PID 3264 wrote to memory of 2680	3264	svchost.exe	91
PID 3264 wrote to memory of 1880	3264	svchost.exe	93
PID 3264 wrote to memory of 1880	3264	svchost.exe	93

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\XwormLoader.exe
"C:\Users\Admin\AppData\Local\Temp\XwormLoader.exe"
1⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:340
- C:\Users\Admin\AppData\Local\Temp\svchost.exe
  "C:\Users\Admin\AppData\Local\Temp\svchost.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:3264
- - 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\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:664
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3332
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\ProgramData\svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2284
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'svchost.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2680
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "svchost" /tr "C:\ProgramData\svchost.exe"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:1880
- C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe
  "C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe"
  2⤵
  - Executes dropped EXE
  PID:2676
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpE0BB.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:248
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:3908

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:1636

C:\ProgramData\svchost.exe
C:\ProgramData\svchost.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:5040

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

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

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\CLR_v4.0\UsageLogs\svchost.exe.log

Filesize
654B

MD5
2cbbb74b7da1f720b48ed31085cbd5b8

SHA1
79caa9a3ea8abe1b9c4326c3633da64a5f724964

SHA256
e31b18f21621d9983bfdf1ea3e53884a9d58b8ffd79e0e5790da6f3a81a8b9d3

SHA512
ecf02d5240e0c1c005d3ab393aa7eff62bd498c2db5905157e2bf6d29e1b663228a9583950842629d1a4caef404c8941a0c7799b1a3bd1eb890a09fdb7efcff9

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
8d7b7dd345ec433b230173652499f84e

SHA1
31f29d8f896fd68744ca479d7f527e7673d36e5c

SHA256
3e1ed03f539064ecae20aaf7e4ad09175ddb3d22873fc37534a567dacf059619

SHA512
4b70c22b7e7eecb3e4061d9ff97192b7f626f0efda64838a14fc7545034f6ebafce180ed4a273b8f097a2c5a11f530e1f3b7921d4b19b2c183548fa8c0014326

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

Filesize
944B

MD5
050567a067ffea4eb40fe2eefebdc1ee

SHA1
6e1fb2c7a7976e0724c532449e97722787a00fec

SHA256
3952d5b543e5cb0cb84014f4ad9f5f1b7166f592d28640cbc3d914d0e6f41d2e

SHA512
341ad71ef7e850b10e229666312e4bca87a0ed9fe25ba4b0ab65661d5a0efa855db0592153106da07134d8fc2c6c0e44709bf38183c9a574a1fa543189971259

Download Submit
C:\Users\Admin\AppData\Local\Temp\Xworm V5.6.exe

Filesize
14.9MB

MD5
db51a102eab752762748a2dec8f7f67a

SHA1
194688ec1511b83063f7b0167ae250764b7591d1

SHA256
93e5e7f018053c445c521b010caff89e61f61743635db3500aad32d6e495abb2

SHA512
fb2fb6605a17fedb65e636cf3716568e85b8ea423c23e0513eb87f3a3441e2cabc4c3e6346225a9bf7b81e97470f3ab516feea649a7afb5cdf02faff8d7f09a5

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_tgsvl4ln.jtp.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\svchost.exe

Filesize
144KB

MD5
4b90399888a12fb85ccc3d0190d5a1d3

SHA1
3326c027bac28b9480b0c7f621481a6cc033db4e

SHA256
cede03d0ef98d200bd5b68f6ca4e0d74e2a62fc430a38083663c3031dbb1c77f

SHA512
899ec2df2f5d70716ad5d0686bfe0a6c66ccbcf7f0485efbdfc0615f90b3526cd3d31069fa66c7c6ae8bba6ce92200836c50da40a3731888b7326b970d93216a

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpE0BB.tmp.bat

Filesize
163B

MD5
5d7ec3346d9196ef031eacec5bc25eae

SHA1
a00d8edd9e25cb7d09ef9e5265c611e70ed46e52

SHA256
5a829e48bacc09bf023000e9e9dec739b7eb87c17c524fc970ee8f2741fbbfc8

SHA512
f4ae9ba5b658cfae6a8c97c3178bddd50dcce7a66efff756beb9f85a94c081646dfa4d1bfc034a6937c22fbb68aeca6f84adff8c81012afc7a20ae80ce6d79b3

Download Submit
memory/340-8-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-9-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-25-0x00007FFA306B5000-0x00007FFA306B6000-memory.dmp

Filesize
4KB

Download
memory/340-26-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-1-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-35-0x000000001EF90000-0x000000001F45E000-memory.dmp

Filesize
4.8MB

Download
memory/340-2-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-3-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-41-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-4-0x000000001C330000-0x000000001C3D6000-memory.dmp

Filesize
664KB

Download
memory/340-5-0x00007FFA30400000-0x00007FFA30DA1000-memory.dmp

Filesize
9.6MB

Download
memory/340-0-0x00007FFA306B5000-0x00007FFA306B6000-memory.dmp

Filesize
4KB

Download
memory/664-48-0x0000018342B20000-0x0000018342B42000-memory.dmp

Filesize
136KB

Download
memory/2676-40-0x00007FFA2DB00000-0x00007FFA2E5C2000-memory.dmp

Filesize
10.8MB

Download
memory/2676-39-0x000002BB2E880000-0x000002BB2F768000-memory.dmp

Filesize
14.9MB

Download
memory/2676-86-0x00007FFA2DB00000-0x00007FFA2E5C2000-memory.dmp

Filesize
10.8MB

Download
memory/3264-21-0x00007FFA2DB03000-0x00007FFA2DB05000-memory.dmp

Filesize
8KB

Download
memory/3264-20-0x0000000000B60000-0x0000000000B8A000-memory.dmp

Filesize
168KB

Download