xworm | 6d5ff2230c713e9372d23989c3ea247d814ffc6f19380be86f7bccf3c0b6ff91

Resubmissions

26/11/2024, 17:54

241126-whcw2aylbr10

29/06/2024, 04:49

240629-ff5aha1eke10

Analysis

max time kernel
149s
max time network
152s
platform
windows10-1703_x64
resource
win10-20240404-en
resource tags

arch:x64arch:x86image:win10-20240404-enlocale:en-usos:windows10-1703-x64system
submitted
29/06/2024, 04:49

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General

Target
WaveWindowsCracked.exe
Size 7.6MB
Sample240629-ff5aha1eke
SHA256 e2bfe1a9a590aab1f7572309b45c0cf88558f9c3463acb550d30e24f47132d1c
MD5 1aec1baab610e71d2dd83ddb08d9c49a
SHA1 47789c92be6ce830faa926acb1969086d410e4d4
SHA512 2435a57bd91dae06c62ca1d209091f3ce4f3de9012eb80b901e89a62e60b28d45e5c94d018c5af5a831b3ff8d28e4bfc6e0c487125be14926a62b970e459690a
SSDEEP 196608:IUhZUvqevevx2QtiFX2PTiiXIeMeZ4SZCqL1:BhOvaZ+X2PG6Iep6SZCy
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

xworm execution persistence rat trojan

Malware Config

Extracted

Family

xworm

stewiegriffin-37537.portmap.host:37537

Attributes

Install_directory
%AppData%
install_file
USB.exe

Signatures

Detect Xworm Payload 2 IoCs

resource	yara_rule
behavioral3/files/0x000800000001ac20-9.dat	family_xworm
behavioral3/memory/4196-13-0x0000000000130000-0x000000000014C000-memory.dmp	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
4508	powershell.exe
5072	powershell.exe
2460	powershell.exe
4376	powershell.exe

Drops startup file 2 IoCs

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

Executes dropped EXE 5 IoCs

pid	Process
3364	WaveWindows.exe
4196	DriverUpdt.exe
1584	DriverUpdt
4128	DriverUpdt
2956	DriverUpdt

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-1-5-21-4106386276-4127174233-3637007343-1000\Software\Microsoft\Windows\CurrentVersion\Run\DriverUpdt = "C:\\Users\\Admin\\AppData\\Roaming\\DriverUpdt"	DriverUpdt.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
4	ip-api.com

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4724	3364	WerFault.exe	72

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
2008	schtasks.exe

Suspicious behavior: EnumeratesProcesses 14 IoCs

pid	Process
3364	WaveWindows.exe
4508	powershell.exe
4508	powershell.exe
4508	powershell.exe
5072	powershell.exe
5072	powershell.exe
5072	powershell.exe
2460	powershell.exe
2460	powershell.exe
2460	powershell.exe
4376	powershell.exe
4376	powershell.exe
4376	powershell.exe
4196	DriverUpdt.exe

Suspicious use of AdjustPrivilegeToken 64 IoCs

description	pid	Process
Token: SeDebugPrivilege	4196	DriverUpdt.exe
Token: SeDebugPrivilege	3364	WaveWindows.exe
Token: SeDebugPrivilege	4508	powershell.exe
Token: SeIncreaseQuotaPrivilege	4508	powershell.exe
Token: SeSecurityPrivilege	4508	powershell.exe
Token: SeTakeOwnershipPrivilege	4508	powershell.exe
Token: SeLoadDriverPrivilege	4508	powershell.exe
Token: SeSystemProfilePrivilege	4508	powershell.exe
Token: SeSystemtimePrivilege	4508	powershell.exe
Token: SeProfSingleProcessPrivilege	4508	powershell.exe
Token: SeIncBasePriorityPrivilege	4508	powershell.exe
Token: SeCreatePagefilePrivilege	4508	powershell.exe
Token: SeBackupPrivilege	4508	powershell.exe
Token: SeRestorePrivilege	4508	powershell.exe
Token: SeShutdownPrivilege	4508	powershell.exe
Token: SeDebugPrivilege	4508	powershell.exe
Token: SeSystemEnvironmentPrivilege	4508	powershell.exe
Token: SeRemoteShutdownPrivilege	4508	powershell.exe
Token: SeUndockPrivilege	4508	powershell.exe
Token: SeManageVolumePrivilege	4508	powershell.exe
Token: 33	4508	powershell.exe
Token: 34	4508	powershell.exe
Token: 35	4508	powershell.exe
Token: 36	4508	powershell.exe
Token: SeDebugPrivilege	5072	powershell.exe
Token: SeIncreaseQuotaPrivilege	5072	powershell.exe
Token: SeSecurityPrivilege	5072	powershell.exe
Token: SeTakeOwnershipPrivilege	5072	powershell.exe
Token: SeLoadDriverPrivilege	5072	powershell.exe
Token: SeSystemProfilePrivilege	5072	powershell.exe
Token: SeSystemtimePrivilege	5072	powershell.exe
Token: SeProfSingleProcessPrivilege	5072	powershell.exe
Token: SeIncBasePriorityPrivilege	5072	powershell.exe
Token: SeCreatePagefilePrivilege	5072	powershell.exe
Token: SeBackupPrivilege	5072	powershell.exe
Token: SeRestorePrivilege	5072	powershell.exe
Token: SeShutdownPrivilege	5072	powershell.exe
Token: SeDebugPrivilege	5072	powershell.exe
Token: SeSystemEnvironmentPrivilege	5072	powershell.exe
Token: SeRemoteShutdownPrivilege	5072	powershell.exe
Token: SeUndockPrivilege	5072	powershell.exe
Token: SeManageVolumePrivilege	5072	powershell.exe
Token: 33	5072	powershell.exe
Token: 34	5072	powershell.exe
Token: 35	5072	powershell.exe
Token: 36	5072	powershell.exe
Token: SeDebugPrivilege	2460	powershell.exe
Token: SeIncreaseQuotaPrivilege	2460	powershell.exe
Token: SeSecurityPrivilege	2460	powershell.exe
Token: SeTakeOwnershipPrivilege	2460	powershell.exe
Token: SeLoadDriverPrivilege	2460	powershell.exe
Token: SeSystemProfilePrivilege	2460	powershell.exe
Token: SeSystemtimePrivilege	2460	powershell.exe
Token: SeProfSingleProcessPrivilege	2460	powershell.exe
Token: SeIncBasePriorityPrivilege	2460	powershell.exe
Token: SeCreatePagefilePrivilege	2460	powershell.exe
Token: SeBackupPrivilege	2460	powershell.exe
Token: SeRestorePrivilege	2460	powershell.exe
Token: SeShutdownPrivilege	2460	powershell.exe
Token: SeDebugPrivilege	2460	powershell.exe
Token: SeSystemEnvironmentPrivilege	2460	powershell.exe
Token: SeRemoteShutdownPrivilege	2460	powershell.exe
Token: SeUndockPrivilege	2460	powershell.exe
Token: SeManageVolumePrivilege	2460	powershell.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4196	DriverUpdt.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 3912 wrote to memory of 3364	3912	WaveWindowsCracked.exe	72
PID 3912 wrote to memory of 3364	3912	WaveWindowsCracked.exe	72
PID 3912 wrote to memory of 3364	3912	WaveWindowsCracked.exe	72
PID 3912 wrote to memory of 4196	3912	WaveWindowsCracked.exe	73
PID 3912 wrote to memory of 4196	3912	WaveWindowsCracked.exe	73
PID 4196 wrote to memory of 4508	4196	DriverUpdt.exe	77
PID 4196 wrote to memory of 4508	4196	DriverUpdt.exe	77
PID 4196 wrote to memory of 5072	4196	DriverUpdt.exe	80
PID 4196 wrote to memory of 5072	4196	DriverUpdt.exe	80
PID 4196 wrote to memory of 2460	4196	DriverUpdt.exe	82
PID 4196 wrote to memory of 2460	4196	DriverUpdt.exe	82
PID 4196 wrote to memory of 4376	4196	DriverUpdt.exe	84
PID 4196 wrote to memory of 4376	4196	DriverUpdt.exe	84
PID 4196 wrote to memory of 2008	4196	DriverUpdt.exe	86
PID 4196 wrote to memory of 2008	4196	DriverUpdt.exe	86

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\WaveWindowsCracked.exe
"C:\Users\Admin\AppData\Local\Temp\WaveWindowsCracked.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:3912
- C:\Users\Admin\AppData\Roaming\WaveWindows.exe
  "C:\Users\Admin\AppData\Roaming\WaveWindows.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:3364
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 3364 -s 1044
    3⤵
    - Program crash
    PID:4724
- C:\Users\Admin\AppData\Roaming\DriverUpdt.exe
  "C:\Users\Admin\AppData\Roaming\DriverUpdt.exe"
  2⤵
  - Drops startup file
  - Executes dropped EXE
  - Adds Run key to start application
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  - Suspicious use of WriteProcessMemory
  PID:4196
- - 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\DriverUpdt.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4508
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'DriverUpdt.exe'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:5072
- - 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\DriverUpdt'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2460
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'DriverUpdt'
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    PID:4376
- - C:\Windows\System32\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /create /f /RL HIGHEST /sc minute /mo 1 /tn "DriverUpdt" /tr "C:\Users\Admin\AppData\Roaming\DriverUpdt"
    3⤵
    - Scheduled Task/Job: Scheduled Task
    PID:2008

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
PID:1584

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
PID:4128

C:\Users\Admin\AppData\Roaming\DriverUpdt
C:\Users\Admin\AppData\Roaming\DriverUpdt
1⤵
- Executes dropped EXE
PID:2956

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

DriverUpdt.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\DriverUpdt.log
Size 654B
SHA256 87ba77c13905298acbac72be90949c4fe0755b6eff9777615aa37f252515f151
MD5 16c5fce5f7230eea11598ec11ed42862
SHA1 75392d4824706090f5e8907eee1059349c927600
SHA512 153edd6da59beea6cc411ed7383c32916425d6ebb65f04c65aab7c1d6b25443d143aa8449aa92149de0ad8a975f6ecaa60f9f7574536eec6b38fe5fd3a6c6adc
MD5 SHA1 SHA512

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powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0\UsageLogs\powershell.exe.log
Size 3KB
SHA256 fdd7d9def6f9f0c0f2e60dbc8a2d1999071cd7d3095e9e087bb1cda7a614ac3c
MD5 8592ba100a78835a6b94d5949e13dfc1
SHA1 63e901200ab9a57c7dd4c078d7f75dcd3b357020
SHA512 87f98e6cb61b2a2a7d65710c4d33881d89715eb7a06e00d492259f35c3902498baabffc5886be0ec5a14312ad4c262e3fc40cd3a5cb91701af0fb229726b88c3
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 6f5346d0ffbf8cc3810d36214830203560de3ea476261468b7b62393df1c0c55
MD5 0a3b4c8627c2eb142bdca79039dbfb7a
SHA1 2ac7226d22c2737ce12033525006fae371de5167
SHA512 4de0cfc110f57e039270df7870a9f4dd5ebce9c7c7530a0e01679cc01d9554a25303df943b186fa97bcdb8c080de3052ef9d8c0634587323614da65ba1f40005
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 8c5597f25a581e2230d885eaf5a98caee711e6f809c1b80040dfa54df9d473d5
MD5 7b507d87d882b9ac9edd72f215701ba4
SHA1 91f96bdc70ca67697e3b37d491d6ce380a686467
SHA512 6368daaad6a5141eb7266d50947d468f4bdc6a660c891e4899a89ae42b137e1b51fbf1b2b52e9daf042358926f98d27203f34f62b836c4564466b5c7c9176c63
MD5 SHA1 SHA512

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StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 1KB
SHA256 910c3d2f11d2001eb5da99f6e31ca055038f83a83bdf770ad7afd1e5649545b7
MD5 4c57bd8aaaf7bbf04725f54d8ef3c966
SHA1 6e37e08af3705ac0706210c0a7249c008d851d40
SHA512 b0f47b5db54a375ce04fc0ebe1a37e603a98b2710dae8d35a53bc6c71a648c5a42975e8a722411628f2a659a6bac68ad2e5ceecd9caef937a050698fa127fc24
MD5 SHA1 SHA512

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__PSScriptPolicyTest_w2qzv5vf.2zn.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_w2qzv5vf.2zn.ps1
Size 1B
SHA256 6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b
MD5 c4ca4238a0b923820dcc509a6f75849b
SHA1 356a192b7913b04c54574d18c28d46e6395428ab
SHA512 4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a
MD5 SHA1 SHA512

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DriverUpdt.exe

Path C:\Users\Admin\AppData\Roaming\DriverUpdt.exe
Size 84KB
SHA256 c6740ee5c8afdc2c7be42fb03ab5a346925efc6ac785fe7d68dec2d5f05d276b
MD5 65485b0475b6c8a3b4f35bba541938a6
SHA1 28e6e6cd2ebf8a9fdffeb4aeba13b70ea7ea03a3
SHA512 034303ee48132b80da79e54a6077676cfd436ef869493a11a27c29dc7cb730fd2ce902320d554a0cde81fc0a06f6c56efa5c170a1360906ec9fa7fd101c3706d
SSDEEP 1536:hZN9jYzwjg6XJlg1cpGxCgN6Fg94b6lFsmqsb7FHxQ6w3k08Bn6ZKsGOPVtrhID:hDJFjP3gOKLN6Frb6lEcRx30MlOPVFGD
MD5 SHA1 SHA512 SSDEEP

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WaveWindows.exe

Path C:\Users\Admin\AppData\Roaming\WaveWindows.exe
Size 7.5MB
SHA256 3b217daf815ced5cf1087d1f408fc3833c9d80a1e3e25b3f9041698b9e34216f
MD5 cd34bf9c69f229818a4c9301e51435eb
SHA1 bfb95a5dc5d777e2b5940f354da271fed397adb2
SHA512 2c68b211a4c8c144713cbe99214e8dc33d3ef6c1f244af4a313ff5ab93d946a4281d404b02c5f66ef5652071279649082877eaa728912a0e769c2c848e0a8e6b
SSDEEP 196608:KG5rY45g686QOL+rSrG6rBQ5I1NkSI4AtzLWFnI2RtCKkVJI55mm:KerY4G686QOSrSrXNkSMLYvz5J
MD5 SHA1 SHA512 SSDEEP

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memory/3364-21-0x0000000006350000-0x00000000063C6000-memory.dmp

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memory/3364-15-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

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memory/3364-19-0x0000000001D60000-0x0000000001D84000-memory.dmp

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memory/3364-20-0x0000000006440000-0x0000000006526000-memory.dmp

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memory/3364-18-0x00000000037C0000-0x000000000380A000-memory.dmp

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memory/3364-203-0x0000000073E00000-0x00000000744EE000-memory.dmp

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memory/3364-17-0x0000000073E00000-0x00000000744EE000-memory.dmp

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memory/3364-16-0x0000000000D20000-0x00000000014AC000-memory.dmp

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memory/3364-202-0x0000000073E0E000-0x0000000073E0F000-memory.dmp

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memory/3912-0-0x00007FFE8F503000-0x00007FFE8F504000-memory.dmp

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memory/3912-1-0x0000000000920000-0x00000000010C6000-memory.dmp

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memory/4196-22-0x000000001ADC0000-0x000000001ADD0000-memory.dmp

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memory/4196-13-0x0000000000130000-0x000000000014C000-memory.dmp

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memory/4196-201-0x00007FFE8F500000-0x00007FFE8FEEC000-memory.dmp

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memory/4196-14-0x00007FFE8F500000-0x00007FFE8FEEC000-memory.dmp

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memory/4196-204-0x000000001ADC0000-0x000000001ADD0000-memory.dmp

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memory/4508-30-0x00000158B23B0000-0x00000158B2426000-memory.dmp

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memory/4508-27-0x00000158B21F0000-0x00000158B2212000-memory.dmp

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