xworm | ea605539db0de672c170b978aeca949933b6e3623cc25fb6a76a745d0049c259

Analysis

max time kernel
135s
max time network
145s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
09-11-2024 10:14

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General

Target

test1ng.exe
Size

54KB
MD5

729590a97e2de28e11b26074aebdd72e
SHA1

24a86696b9aea4b1eb5697be3859d91ef7d66b0c
SHA256

ea605539db0de672c170b978aeca949933b6e3623cc25fb6a76a745d0049c259
SHA512

2d4629696275e9fd33a3dd271c1445234b9560d89e48511d48d7e7105d0e2274a0e7310a9a7a5bba05b78e085256480960fe67dd3e9af1e814265033598e5f89
SSDEEP

1536:uuPL6tJkjNe8U6Ksv/Ukb8nAh0zbOOAxY8Y:uuP+XkyIckbw7zbOOAO8Y

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

0.tcp.ap.ngrok.io:12725

Attributes

Install_directory
%Public%
install_file
hh.exe

Signatures

Detect Xworm Payload 4 IoCs

resource	yara_rule
behavioral1/memory/4976-1-0x0000000000CA0000-0x0000000000CB4000-memory.dmp	family_xworm
behavioral1/files/0x001d00000002aae3-8.dat	family_xworm
behavioral1/files/0x001c00000002aafc-28.dat	family_xworm
behavioral1/memory/3344-30-0x0000000000E70000-0x0000000000E82000-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
3272	powershell.exe
3328	powershell.exe
1692	powershell.exe
3108	powershell.exe

Drops startup file 4 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hh.lnk	test1ng.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hh.lnk	test1ng.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hh.lnk	test1.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\hh.lnk	test1.exe

Executes dropped EXE 4 IoCs

pid	Process
3916	hh.exe
4904	hh.exe
3344	test1.exe
2828	hh.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-1-5-21-556537508-2730415644-482548075-1000\Software\Microsoft\Windows\CurrentVersion\Run\hh = "C:\\Users\\Public\\hh.exe"	test1ng.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-556537508-2730415644-482548075-1000\Software\Microsoft\Windows\CurrentVersion\Run\hh = "C:\\Users\\Public\\hh.exe"	test1.exe

Legitimate hosting services abused for malware hosting/C2 1 TTPs 1 IoCs

Web Service

T1102

flow	ioc
1	0.tcp.ap.ngrok.io

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
4252	timeout.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
4016	schtasks.exe
3144	schtasks.exe

Suspicious behavior: EnumeratesProcesses 9 IoCs

pid	Process
3272	powershell.exe
3272	powershell.exe
3328	powershell.exe
3328	powershell.exe
1692	powershell.exe
1692	powershell.exe
3108	powershell.exe
3108	powershell.exe
3344	test1.exe

Suspicious use of AdjustPrivilegeToken 11 IoCs

description	pid	Process
Token: SeDebugPrivilege	4976	test1ng.exe
Token: SeDebugPrivilege	4976	test1ng.exe
Token: SeDebugPrivilege	3916	hh.exe
Token: SeDebugPrivilege	4904	hh.exe
Token: SeDebugPrivilege	3344	test1.exe
Token: SeDebugPrivilege	3272	powershell.exe
Token: SeDebugPrivilege	3328	powershell.exe
Token: SeDebugPrivilege	1692	powershell.exe
Token: SeDebugPrivilege	3108	powershell.exe
Token: SeDebugPrivilege	3344	test1.exe
Token: SeDebugPrivilege	2828	hh.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4976 wrote to memory of 3144	4976	test1ng.exe	80
PID 4976 wrote to memory of 3144	4976	test1ng.exe	80
PID 4976 wrote to memory of 2996	4976	test1ng.exe	87
PID 4976 wrote to memory of 2996	4976	test1ng.exe	87
PID 4976 wrote to memory of 1484	4976	test1ng.exe	89
PID 4976 wrote to memory of 1484	4976	test1ng.exe	89
PID 1484 wrote to memory of 4252	1484	cmd.exe	91
PID 1484 wrote to memory of 4252	1484	cmd.exe	91
PID 3344 wrote to memory of 3272	3344	test1.exe	95
PID 3344 wrote to memory of 3272	3344	test1.exe	95
PID 3344 wrote to memory of 3328	3344	test1.exe	97
PID 3344 wrote to memory of 3328	3344	test1.exe	97
PID 3344 wrote to memory of 1692	3344	test1.exe	99
PID 3344 wrote to memory of 1692	3344	test1.exe	99
PID 3344 wrote to memory of 3108	3344	test1.exe	101
PID 3344 wrote to memory of 3108	3344	test1.exe	101
PID 3344 wrote to memory of 4016	3344	test1.exe	103
PID 3344 wrote to memory of 4016	3344	test1.exe	103

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\test1ng.exe
"C:\Users\Admin\AppData\Local\Temp\test1ng.exe"
1⤵
- Drops startup file
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4976
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "hh" /tr "C:\Users\Public\hh.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:3144
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /delete /f /tn "hh"
  2⤵
  PID:2996
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp37CF.tmp.bat""
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1484
- - C:\Windows\system32\timeout.exe
    timeout 3
    3⤵
    - Delays execution with timeout.exe
    PID:4252

C:\Users\Public\hh.exe
C:\Users\Public\hh.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:3916

C:\Users\Public\hh.exe
C:\Users\Public\hh.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:4904

C:\test1.exe
"C:\test1.exe"
1⤵
- Drops startup file
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3344
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\test1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3272
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'test1.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3328
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Public\hh.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1692
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'hh.exe'
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3108
- C:\Windows\System32\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "hh" /tr "C:\Users\Public\hh.exe"
  2⤵
  - Scheduled Task/Job: Scheduled Task
  PID:4016

C:\Users\Public\hh.exe
C:\Users\Public\hh.exe
1⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:2828

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

Web Service

T1102

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\hh.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
2e8eb51096d6f6781456fef7df731d97

SHA1
ec2aaf851a618fb43c3d040a13a71997c25bda43

SHA256
96bfd9dd5883329927fe8c08b8956355a1a6ceb30ceeb5d4252b346df32bc864

SHA512
0a73dc9a49f92d9dd556c2ca2e36761890b3538f355ee1f013e7cf648d8c4d065f28046cd4a167db3dea304d1fbcbcea68d11ce6e12a3f20f8b6c018a60422d2

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

Filesize
944B

MD5
f28832ecd9829ee81bb32f98f0747445

SHA1
ac0dc6c286da7b0b7b1b595aaf4f8877e1304125

SHA256
d44590cb55e999c1e0abdd9932e00ddde1bc637ac3eb7d02374ace88479f2f50

SHA512
3b72129f951df7d4b2437ed761ff00ea9dc046a284665a3036b9c86fd20626435f775ec2bb9665435b7d8ec6a211e6c54d1debae75b5ae8778797b3485a163fa

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

Filesize
944B

MD5
80b42fe4c6cf64624e6c31e5d7f2d3b3

SHA1
1f93e7dd83b86cb900810b7e3e43797868bf7d93

SHA256
ee20a5b38a6674366efda276dbbf0b43eb54efd282acfc1033042f6b53a80d4d

SHA512
83c1c744c15a8b427a1d3af677ec3bfd0353875a60fe886c41570981e17467ebbb59619b960ca8c5c3ab1430946b0633ea200b7e7d84ab6dca88b60c50055573

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_pqjnjuuu.10b.ps1

Filesize
60B

MD5
d17fe0a3f47be24a6453e9ef58c94641

SHA1
6ab83620379fc69f80c0242105ddffd7d98d5d9d

SHA256
96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7

SHA512
5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmp37CF.tmp.bat

Filesize
159B

MD5
fed81ff1563ebb72c051ee7004ae032b

SHA1
68928b3df306cf2a6aef30b8b4337d263d449cb4

SHA256
15deb491360b91d74caed8a591b629648613c5d4b013ab8b6b6bb8c900568a61

SHA512
2f87e1550cb10fd89a00b1795bc7f4fbb76a89eabb3791dcb59be8ef7e3bae8de10511c63eafebad057c2ec5b23a5f33a8882721e24bf3494b5a8454fa2ccbe3

Download Submit
C:\Users\Public\hh.exe

Filesize
54KB

MD5
729590a97e2de28e11b26074aebdd72e

SHA1
24a86696b9aea4b1eb5697be3859d91ef7d66b0c

SHA256
ea605539db0de672c170b978aeca949933b6e3623cc25fb6a76a745d0049c259

SHA512
2d4629696275e9fd33a3dd271c1445234b9560d89e48511d48d7e7105d0e2274a0e7310a9a7a5bba05b78e085256480960fe67dd3e9af1e814265033598e5f89

Download Submit
C:\test1.exe

Filesize
48KB

MD5
d9fbf69d70d0e1bc0fe8d6afbea18d66

SHA1
68957c35c2e751f261a1fcf867064d0d88cd2303

SHA256
a0994cb4631c44950ecd7af2e94f78b50fffe2dbd4e90acd3c677f77bf006bf4

SHA512
29886ce56ab738b87cdd8452b94bc5a4abc07b8957237f4ba5617fa5a2dc8074aa398a01976691102fa8f2e01065a5de7732ed97a05070807c9910d2a7a1cdff

Download Submit
memory/3272-33-0x00000157220E0000-0x0000015722102000-memory.dmp

Filesize
136KB

Download
memory/3344-30-0x0000000000E70000-0x0000000000E82000-memory.dmp

Filesize
72KB

Download
memory/3344-77-0x000000001C600000-0x000000001C60C000-memory.dmp

Filesize
48KB

Download
memory/3916-13-0x00007FFD92770000-0x00007FFD93232000-memory.dmp

Filesize
10.8MB

Download
memory/3916-11-0x00007FFD92770000-0x00007FFD93232000-memory.dmp

Filesize
10.8MB

Download
memory/4976-10-0x00007FFD92770000-0x00007FFD93232000-memory.dmp

Filesize
10.8MB

Download
memory/4976-0-0x00007FFD92773000-0x00007FFD92775000-memory.dmp

Filesize
8KB

Download
memory/4976-26-0x00007FFD92770000-0x00007FFD93232000-memory.dmp

Filesize
10.8MB

Download
memory/4976-15-0x000000001D470000-0x000000001D998000-memory.dmp

Filesize
5.2MB

Download
memory/4976-7-0x00007FFD92773000-0x00007FFD92775000-memory.dmp

Filesize
8KB

Download
memory/4976-6-0x00007FFD92770000-0x00007FFD93232000-memory.dmp

Filesize
10.8MB

Download
memory/4976-1-0x0000000000CA0000-0x0000000000CB4000-memory.dmp

Filesize
80KB

Download
memory/4976-14-0x000000001CC90000-0x000000001CD40000-memory.dmp

Filesize
704KB

Download