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Analysis
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max time kernel
45s -
max time network
49s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
24/11/2022, 04:32
Static task
static1
Behavioral task
behavioral1
Sample
fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe
Resource
win10v2004-20220812-en
General
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Target
fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe
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Size
1.1MB
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MD5
11c20f0a2f97d615cb9ddd634c04086d
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SHA1
9296c3f962e8078fd9fbfa775a688995d0fd9e25
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SHA256
fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c
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SHA512
57fb963592fe1f2d0fea3aeb5d93cccbdc61136cdf3b8e37fab362ce782493043f974216ade6b807a86e50e431194859768afcdf367a448ad8e3c9bc1dc1ea52
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SSDEEP
12288:zH7Wcjdc/r2sxxiPGGAOOPSXDV8ClgVYhX5FSsf8Q66oIWr69oGE15jSsFZyoop3:zbCj2sObHtqQ4Q66DssoRNFZyopgX
Malware Config
Signatures
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ISR Stealer
ISR Stealer is a modified version of Hackhound Stealer written in visual basic.
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ISR Stealer payload 6 IoCs
resource yara_rule behavioral1/memory/1152-58-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1152-61-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/1152-60-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1152-71-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1152-83-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1152-84-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1100-81-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1100-82-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral1/memory/1100-81-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1100-82-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral1/memory/1544-65-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1544-69-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1544-70-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1544-72-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1544-73-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1100-76-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1100-80-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1100-81-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1100-82-0x0000000000400000-0x000000000041F000-memory.dmp upx -
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1492 set thread context of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1152 set thread context of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 set thread context of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1492 wrote to memory of 1152 1492 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 27 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1544 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 28 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31 PID 1152 wrote to memory of 1100 1152 fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe"C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1492 -
C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe"C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe/scomma "C:\Users\Admin\AppData\Local\Temp\2M3SWSSYf0.ini"3⤵PID:1544
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C:\Users\Admin\AppData\Local\Temp\fa2c2a36f73c98508cf406f012a6a2217e4611fb2d22e1ee01998abd2fb2396c.exe/scomma "C:\Users\Admin\AppData\Local\Temp\wPOHId6Ak9.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:1100
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
5B
MD5d1ea279fb5559c020a1b4137dc4de237
SHA1db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3