Analysis
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max time kernel
137s -
max time network
123s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
22-05-2024 01:51
Static task
static1
Behavioral task
behavioral1
Sample
Purchase Order_32011007_PDF ________________________ IndiaMart.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Purchase Order_32011007_PDF ________________________ IndiaMart.exe
Resource
win10v2004-20240508-en
General
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Target
Purchase Order_32011007_PDF ________________________ IndiaMart.exe
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Size
1.9MB
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MD5
3028514a88931279e013935981e0bc67
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SHA1
dcbc85bedd0fdaf734c24e2236f042780e8d62cb
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SHA256
c1df583ca0726b951814b38ea8cdb97a2a3f6e4799cbd01af75f9f6df6b96d31
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SHA512
24946f9058ef1e4c36337fcd99948f61052c69ebcf4ec33412fac0a8af386b7a29337630418dfbc1b11acb1bef24b5d523251e74606d6a06e2374e0b89b8a8a5
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SSDEEP
49152:Wu0c++OCvkGs9Fa3A8jGNcPaXJyJYlsmQV2jFiBY:ZB3vkJ9MpGCuyJh+FW
Malware Config
Extracted
Protocol: smtp- Host:
outback.websitewelcome.com - Port:
587 - Username:
[email protected] - Password:
Change2020*
Signatures
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NirSoft MailPassView 4 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral2/memory/4280-4-0x0000000000400000-0x0000000000488000-memory.dmp MailPassView behavioral2/memory/1836-14-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1836-18-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView behavioral2/memory/1836-16-0x0000000000400000-0x000000000041B000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral2/memory/4280-4-0x0000000000400000-0x0000000000488000-memory.dmp WebBrowserPassView behavioral2/memory/5284-20-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5284-22-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5284-24-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView behavioral2/memory/5284-32-0x0000000000400000-0x0000000000458000-memory.dmp WebBrowserPassView -
Nirsoft 8 IoCs
Processes:
resource yara_rule behavioral2/memory/4280-4-0x0000000000400000-0x0000000000488000-memory.dmp Nirsoft behavioral2/memory/1836-14-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1836-18-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/1836-16-0x0000000000400000-0x000000000041B000-memory.dmp Nirsoft behavioral2/memory/5284-20-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5284-22-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5284-24-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft behavioral2/memory/5284-32-0x0000000000400000-0x0000000000458000-memory.dmp Nirsoft -
Drops startup file 1 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exedescription ioc process File opened for modification C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\advapi32.url Purchase Order_32011007_PDF ________________________ IndiaMart.exe -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Adds Run key to start application 2 TTPs 1 IoCs
Processes:
RegAsm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Windows Update = "C:\\Users\\Admin\\AppData\\Roaming\\WindowsUpdate.exe" RegAsm.exe -
Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 35 whatismyipaddress.com 37 whatismyipaddress.com -
Suspicious use of SetThreadContext 3 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exeRegAsm.exedescription pid process target process PID 5780 set thread context of 4280 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe RegAsm.exe PID 4280 set thread context of 1836 4280 RegAsm.exe vbc.exe PID 4280 set thread context of 5284 4280 RegAsm.exe vbc.exe -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
vbc.exeRegAsm.exepid process 5284 vbc.exe 5284 vbc.exe 4280 RegAsm.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exepid process 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 4280 RegAsm.exe -
Suspicious use of FindShellTrayWindow 3 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exepid process 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe -
Suspicious use of SendNotifyMessage 3 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exepid process 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
RegAsm.exepid process 4280 RegAsm.exe -
Suspicious use of WriteProcessMemory 22 IoCs
Processes:
Purchase Order_32011007_PDF ________________________ IndiaMart.exeRegAsm.exedescription pid process target process PID 5780 wrote to memory of 4280 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe RegAsm.exe PID 5780 wrote to memory of 4280 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe RegAsm.exe PID 5780 wrote to memory of 4280 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe RegAsm.exe PID 5780 wrote to memory of 4280 5780 Purchase Order_32011007_PDF ________________________ IndiaMart.exe RegAsm.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 1836 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe PID 4280 wrote to memory of 5284 4280 RegAsm.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Purchase Order_32011007_PDF ________________________ IndiaMart.exe"C:\Users\Admin\AppData\Local\Temp\Purchase Order_32011007_PDF ________________________ IndiaMart.exe"1⤵
- Drops startup file
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:5780 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\RegAsm.exe"C:\\\\Windows\\\\Microsoft.NET\\\\Framework\\\\v2.0.50727\\\\RegAsm.exe"2⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4280 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holdermail.txt"3⤵
- Accesses Microsoft Outlook accounts
PID:1836 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exeC:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe /stext "C:\Users\Admin\AppData\Local\Temp\holderwb.txt"3⤵
- Suspicious behavior: EnumeratesProcesses
PID:5284
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\holderwb.txtFilesize
3KB
MD5f94dc819ca773f1e3cb27abbc9e7fa27
SHA19a7700efadc5ea09ab288544ef1e3cd876255086
SHA256a3377ade83786c2bdff5db19ff4dbfd796da4312402b5e77c4c63e38cc6eff92
SHA51272a2c10d7a53a7f9a319dab66d77ed65639e9aa885b551e0055fc7eaf6ef33bbf109205b42ae11555a0f292563914bc6edb63b310c6f9bda9564095f77ab9196
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memory/1836-14-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1836-17-0x0000000000420000-0x00000000004E9000-memory.dmpFilesize
804KB
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memory/1836-16-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/1836-18-0x0000000000400000-0x000000000041B000-memory.dmpFilesize
108KB
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memory/4280-8-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-23-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-35-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-7-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-6-0x0000000074432000-0x0000000074433000-memory.dmpFilesize
4KB
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memory/4280-34-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-33-0x0000000074432000-0x0000000074433000-memory.dmpFilesize
4KB
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memory/4280-9-0x0000000074430000-0x00000000749E1000-memory.dmpFilesize
5.7MB
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memory/4280-4-0x0000000000400000-0x0000000000488000-memory.dmpFilesize
544KB
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memory/5284-22-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5284-32-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5284-24-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5284-20-0x0000000000400000-0x0000000000458000-memory.dmpFilesize
352KB
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memory/5780-5-0x0000000004AC0000-0x0000000004B43000-memory.dmpFilesize
524KB
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memory/5780-3-0x0000000003F10000-0x0000000003F93000-memory.dmpFilesize
524KB