Analysis
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max time kernel
149s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20240426-en -
resource tags
arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system -
submitted
30-05-2024 11:00
Behavioral task
behavioral1
Sample
Probiv.exe
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
Probiv.exe
Resource
win10-20240404-en
Behavioral task
behavioral3
Sample
Probiv.exe
Resource
win10v2004-20240426-en
Behavioral task
behavioral4
Sample
Probiv.exe
Resource
win11-20240508-en
General
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Target
Probiv.exe
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Size
67KB
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MD5
613288a7e55550e864d86191542d9177
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SHA1
22262078f189408184206777a67a64b9fb70e99a
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SHA256
a9e49fdb9c43601c9e860d851f4d969550aaf43af8b84d178ea88257e8065a12
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SHA512
22dd638b808a34fa64d354135407e8ac952cd96ce37ede335b055d590dcd360b63462233c159c1859e17707bf413f507494cc3656555fc606de195976dd47006
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SSDEEP
1536:SmsKyHPhRopHbWTakbOzUyZX6I4wEON2GE:1OvbOoyb4wEONa
Malware Config
Extracted
xworm
registered-martial.gl.at.ply.gg:62460
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Install_directory
%Temp%
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install_file
XClient.exe
Signatures
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Detect Xworm Payload 1 IoCs
Processes:
resource yara_rule behavioral3/memory/3380-1-0x0000000000EE0000-0x0000000000EF8000-memory.dmp 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.
Processes:
powershell.exepowershell.exepowershell.exepowershell.exepid process 4992 powershell.exe 4844 powershell.exe 1916 powershell.exe 4160 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
Probiv.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\Control Panel\International\Geo\Nation Probiv.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
Probiv.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-540404634-651139247-2967210625-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\XClient = "C:\\Users\\Admin\\AppData\\Local\\Temp\\XClient.exe" Probiv.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 15 ip-api.com -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious behavior: EnumeratesProcesses 9 IoCs
Processes:
powershell.exepowershell.exepowershell.exepowershell.exeProbiv.exepid process 1916 powershell.exe 1916 powershell.exe 4160 powershell.exe 4160 powershell.exe 4992 powershell.exe 4992 powershell.exe 4844 powershell.exe 4844 powershell.exe 3380 Probiv.exe -
Suspicious use of AdjustPrivilegeToken 6 IoCs
Processes:
Probiv.exepowershell.exepowershell.exepowershell.exepowershell.exedescription pid process Token: SeDebugPrivilege 3380 Probiv.exe Token: SeDebugPrivilege 1916 powershell.exe Token: SeDebugPrivilege 4160 powershell.exe Token: SeDebugPrivilege 4992 powershell.exe Token: SeDebugPrivilege 4844 powershell.exe Token: SeDebugPrivilege 3380 Probiv.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
Probiv.exepid process 3380 Probiv.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
Probiv.exedescription pid process target process PID 3380 wrote to memory of 1916 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 1916 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4160 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4160 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4992 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4992 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4844 3380 Probiv.exe powershell.exe PID 3380 wrote to memory of 4844 3380 Probiv.exe powershell.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Probiv.exe"C:\Users\Admin\AppData\Local\Temp\Probiv.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3380 -
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\Probiv.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1916
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'Probiv.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4160
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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\XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4992
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'2⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4844
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
2KB
MD5d85ba6ff808d9e5444a4b369f5bc2730
SHA131aa9d96590fff6981b315e0b391b575e4c0804a
SHA25684739c608a73509419748e4e20e6cc4e1846056c3fe1929a8300d5a1a488202f
SHA5128c414eb55b45212af385accc16d9d562adba2123583ce70d22b91161fe878683845512a78f04dedd4ea98ed9b174dbfa98cf696370598ad8e6fbd1e714f1f249
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Filesize
944B
MD56d3e9c29fe44e90aae6ed30ccf799ca8
SHA1c7974ef72264bbdf13a2793ccf1aed11bc565dce
SHA2562360634e63e8f0b5748e2c56ebb8f4aa78e71008ea7b5c9ca1c49be03b49557d
SHA51260c38c4367352537545d859f64b9c5cbada94240478d1d039fd27b5ecba4dc1c90051557c16d802269703b873546ead416279c0a80c6fd5e49ad361cef22596a
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Filesize
944B
MD5cae60f0ddddac635da71bba775a2c5b4
SHA1386f1a036af61345a7d303d45f5230e2df817477
SHA256b2dd636b7b0d3bfe44cef5e1175828b1fa7bd84d5563f54342944156ba996c16
SHA51228ed8a8bc132ef56971cfd7b517b17cdb74a7f8c247ef6bff232996210075e06aa58a415825a1e038cfb547ad3dc6882bf1ca1b68c5b360ef0512a1440850253
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Filesize
944B
MD5815f9e54d2e55a6cd87a044f75fdba0c
SHA19e2c91b5d015a2f96539227ed0a5d83cf26f6c08
SHA256ec7d07723ca9c032e3662c0a316318065854ed4dc54106a5214278cbd148e75f
SHA5129198d94b9d3ef35693881e3dc3e1c7f4b42d98f23a27f58cec67309628504de6940f0ac58bff1de2923b9d1b2dd11be82ea98bad9419d2e22f610df01c7401a3
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82