xworm | 9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982

Analysis

max time kernel
149s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20241007-en
resource tags

arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
submitted
05-12-2024 09:52

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General

Target

9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe
Size

1.9MB
MD5

0fa0f690b52cbae6bc8ebbe14f3c3e18
SHA1

9ddef8fe6dd6ebb967d2013d8f922da6bd7f32a7
SHA256

9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982
SHA512

72a7868f4c9febb29e9cd58669d71840d01066120134dff18536e3049d1ed2b72449a871ac63f838f2dd8d98ad43568a2b54a4669d2ff4f821f346547eff5b82
SSDEEP

49152:1cAik7bXfOK/h8ouCv7NNKD19hCi1aD8K95Zvwe:aABvOK/hzNNMkOaD8KtZ

Score

10^/10

xworm discovery execution persistence rat trojan

Malware Config

Extracted

Family

xworm

Version

5.0

vpss.ddns.net:1245

indic.serveftp.com:1245

Mutex

ZlxMvmg7wbh8VVle

Attributes

Install_directory
%AppData%
install_file
Process for Setting Synchronization .exe
telegram
https://api.telegram.org/bot6089519915:AAF7fGsNdxVbpoG7s96nf2ioIN27LQpQuh8/sendMessage?chat_id=597592591

aes.plain

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral2/memory/3724-4-0x0000000000400000-0x00000000005F6000-memory.dmp	family_xworm
behavioral2/memory/5092-5-0x00000000009E0000-0x00000000009F2000-memory.dmp	family_xworm
behavioral2/memory/3724-10-0x0000000000400000-0x00000000005F6000-memory.dmp	family_xworm
behavioral2/memory/3724-123-0x0000000000400000-0x00000000005F6000-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
4248	powershell.exe
3164	powershell.exe
1008	powershell.exe
1284	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 2 IoCs

pid	Process
3576	Process for Setting Synchronization .exe
1516	Process for Setting Synchronization .exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\FirefoxUpdater = "C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Windows\\Start Menu\\FirefoxUpdate\\Firefox.exe"	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Process for Setting Synchronization = "C:\\Users\\Admin\\AppData\\Roaming\\Process for Setting Synchronization .exe"	csc.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3724 set thread context of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95

Program crash 1 IoCs

pid	pid_target	Process	procid_target
592	3724	WerFault.exe	82

System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	csc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Process for Setting Synchronization .exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Process for Setting Synchronization .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
408	schtasks.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
5092	csc.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
4248	powershell.exe
4248	powershell.exe
3164	powershell.exe
3164	powershell.exe
1008	powershell.exe
1008	powershell.exe
1284	powershell.exe
1284	powershell.exe
5092	csc.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeDebugPrivilege	5092	csc.exe
Token: SeDebugPrivilege	4248	powershell.exe
Token: SeDebugPrivilege	3164	powershell.exe
Token: SeDebugPrivilege	1008	powershell.exe
Token: SeDebugPrivilege	1284	powershell.exe
Token: SeDebugPrivilege	5092	csc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
5092	csc.exe

Suspicious use of WriteProcessMemory 20 IoCs

description	pid	Process	procid_target
PID 3724 wrote to memory of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95
PID 3724 wrote to memory of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95
PID 3724 wrote to memory of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95
PID 3724 wrote to memory of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95
PID 3724 wrote to memory of 5092	3724	9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe	95
PID 5092 wrote to memory of 4248	5092	csc.exe	96
PID 5092 wrote to memory of 4248	5092	csc.exe	96
PID 5092 wrote to memory of 4248	5092	csc.exe	96
PID 5092 wrote to memory of 3164	5092	csc.exe	98
PID 5092 wrote to memory of 3164	5092	csc.exe	98
PID 5092 wrote to memory of 3164	5092	csc.exe	98
PID 5092 wrote to memory of 1008	5092	csc.exe	100
PID 5092 wrote to memory of 1008	5092	csc.exe	100
PID 5092 wrote to memory of 1008	5092	csc.exe	100
PID 5092 wrote to memory of 1284	5092	csc.exe	102
PID 5092 wrote to memory of 1284	5092	csc.exe	102
PID 5092 wrote to memory of 1284	5092	csc.exe	102
PID 5092 wrote to memory of 408	5092	csc.exe	110
PID 5092 wrote to memory of 408	5092	csc.exe	110
PID 5092 wrote to memory of 408	5092	csc.exe	110

C:\Users\Admin\AppData\Local\Temp\9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe
"C:\Users\Admin\AppData\Local\Temp\9a34f0fec4bab7739f220dab713d8bca30c5cb72e9755a2ddbb32077b076c982.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3724
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe"
  2⤵
  - Drops startup file
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: AddClipboardFormatListener
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:5092
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Windows\Microsoft.NET\Framework\v4.0.30319\csc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4248
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'csc.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:3164
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1008
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Process for Setting Synchronization .exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1284
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "Process for Setting Synchronization " /tr "C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:408
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3724 -s 268
  2⤵
  - Program crash
  PID:592

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3724 -ip 3724
1⤵
PID:2376

C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe
"C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:3576

C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe
"C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe"
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:1516

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
2KB

MD5
968cb9309758126772781b83adb8a28f

SHA1
8da30e71accf186b2ba11da1797cf67f8f78b47c

SHA256
92099c10776bb7e3f2a8d1b82d4d40d0c4627e4f1bf754a6e58dfd2c2e97042a

SHA512
4bd50732f8af4d688d95999bddfd296115d7033ddc38f86c9fb1f47fde202bffa27e9088bebcaa3064ca946af2f5c1ca6cbde49d0907f0005c7ab42874515dd3

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

Filesize
18KB

MD5
1bd415654563ec9f4838c5ff13a90738

SHA1
c9eaf87a0dfaff2094e3c6f8f352f58f63714425

SHA256
315d5a84f323c2cba21fc587e1a8777af8e6f67f8d29050e9beb03d20b3a57bd

SHA512
d1071d15e22da07ce1438fb6cdaf4334a96e59e6a9fd95a91648d41dfd241c60b947370299f6447439591cfc3628b6f13b404c94691fe7260aad5f357e808e37

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

Filesize
18KB

MD5
6b61029b4446dbcad6cafe46b0389d6f

SHA1
78490336b3fd913fe8e1dfd630d76b77e9c24543

SHA256
7b3f28ca640b52c481ab7aa34c13fa0bf5b78231937acb03e0fb2246467a338a

SHA512
842abba1c60291b1b4d1615a1acaa793888697c3e53e4f07f38b2e69cd642fed86a67a014526d349598d92d235bf8cfd2c6d62afb600b2941d20de997a90e0de

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

Filesize
18KB

MD5
a95a0050a761aca57a685319c521b5c8

SHA1
5d7f8d96255a0a2db09e4d9358fe2d5cd2805126

SHA256
377e731d7df3755ce4332bc269ef30a850e2f5d5395c576b20a88d090b0383b3

SHA512
e86adcb1384da6963e7d137f97d7985e8c48d0cf5716e4c52ef737f2c2868c0faa0fce277175e5dea205825704e05aca6a706317a0badfb9bf4ef7d7c08cada9

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_cjobjtsq.ou1.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Roaming\Process for Setting Synchronization .exe

Filesize
2.0MB

MD5
eb80bb1ca9b9c7f516ff69afcfd75b7d

SHA1
db402fb24b206c4a378a74fd649c60a413ce5a92

SHA256
38c407dbf41e99396b78d00dd796930d8838dcb4af77c3f23ba0e800d1213ebe

SHA512
b7669d624366d1b2c0d162053dee91aa2a319dea90b32e314dd8c8abc7306035c262454a500deda3ef9ed833d409e958cad759d7925e8e352b499eb86a17e814

Download Submit
memory/1008-91-0x000000006FAE0000-0x000000006FB2C000-memory.dmp

Filesize
304KB

Download
memory/1008-80-0x0000000005840000-0x0000000005B94000-memory.dmp

Filesize
3.3MB

Download
memory/1284-112-0x000000006FAE0000-0x000000006FB2C000-memory.dmp

Filesize
304KB

Download
memory/3164-69-0x000000006FAE0000-0x000000006FB2C000-memory.dmp

Filesize
304KB

Download
memory/3164-67-0x00000000055B0000-0x0000000005904000-memory.dmp

Filesize
3.3MB

Download
memory/3724-125-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/3724-8-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/3724-4-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/3724-10-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/3724-1-0x0000000000407000-0x0000000000421000-memory.dmp

Filesize
104KB

Download
memory/3724-3-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/3724-2-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/3724-123-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/3724-0-0x0000000000400000-0x00000000005F6000-memory.dmp

Filesize
2.0MB

Download
memory/4248-13-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-56-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-29-0x0000000006A50000-0x0000000006A82000-memory.dmp

Filesize
200KB

Download
memory/4248-41-0x0000000006080000-0x000000000609E000-memory.dmp

Filesize
120KB

Download
memory/4248-42-0x0000000006C90000-0x0000000006D33000-memory.dmp

Filesize
652KB

Download
memory/4248-43-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-40-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-44-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-45-0x0000000007400000-0x0000000007A7A000-memory.dmp

Filesize
6.5MB

Download
memory/4248-46-0x0000000004820000-0x000000000483A000-memory.dmp

Filesize
104KB

Download
memory/4248-47-0x0000000006E50000-0x0000000006E5A000-memory.dmp

Filesize
40KB

Download
memory/4248-48-0x0000000007060000-0x00000000070F6000-memory.dmp

Filesize
600KB

Download
memory/4248-49-0x0000000006FE0000-0x0000000006FF1000-memory.dmp

Filesize
68KB

Download
memory/4248-50-0x0000000007010000-0x000000000701E000-memory.dmp

Filesize
56KB

Download
memory/4248-51-0x0000000007020000-0x0000000007034000-memory.dmp

Filesize
80KB

Download
memory/4248-52-0x0000000007120000-0x000000000713A000-memory.dmp

Filesize
104KB

Download
memory/4248-53-0x0000000007100000-0x0000000007108000-memory.dmp

Filesize
32KB

Download
memory/4248-30-0x000000006FAE0000-0x000000006FB2C000-memory.dmp

Filesize
304KB

Download
memory/4248-28-0x0000000005AE0000-0x0000000005B2C000-memory.dmp

Filesize
304KB

Download
memory/4248-27-0x0000000005AB0000-0x0000000005ACE000-memory.dmp

Filesize
120KB

Download
memory/4248-26-0x00000000055E0000-0x0000000005934000-memory.dmp

Filesize
3.3MB

Download
memory/4248-15-0x0000000005400000-0x0000000005466000-memory.dmp

Filesize
408KB

Download
memory/4248-16-0x0000000005470000-0x00000000054D6000-memory.dmp

Filesize
408KB

Download
memory/4248-14-0x0000000004BF0000-0x0000000004C12000-memory.dmp

Filesize
136KB

Download
memory/4248-12-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/4248-11-0x0000000004DD0000-0x00000000053F8000-memory.dmp

Filesize
6.2MB

Download
memory/4248-9-0x0000000000D10000-0x0000000000D46000-memory.dmp

Filesize
216KB

Download
memory/5092-7-0x0000000005600000-0x000000000569C000-memory.dmp

Filesize
624KB

Download
memory/5092-6-0x0000000073E9E000-0x0000000073E9F000-memory.dmp

Filesize
4KB

Download
memory/5092-130-0x00000000068E0000-0x0000000006E84000-memory.dmp

Filesize
5.6MB

Download
memory/5092-129-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/5092-131-0x00000000067A0000-0x0000000006832000-memory.dmp

Filesize
584KB

Download
memory/5092-132-0x00000000071D0000-0x00000000071DA000-memory.dmp

Filesize
40KB

Download
memory/5092-133-0x0000000073E90000-0x0000000074640000-memory.dmp

Filesize
7.7MB

Download
memory/5092-5-0x00000000009E0000-0x00000000009F2000-memory.dmp

Filesize
72KB

Download