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Analysis
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max time kernel
92s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
26/11/2022, 04:51
Static task
static1
Behavioral task
behavioral1
Sample
2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe
Resource
win10v2004-20220812-en
General
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Target
2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe
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Size
1.1MB
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MD5
3f87e3588e862b0494c22ae0c0cf8898
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SHA1
07d2f0a663108ebf6130b1a28921e67b76ee5564
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SHA256
2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5
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SHA512
bdc255a133acf642b0f5bab6cebbde5bc7205054309aba46b9e69748b8de5ecb0d86c47d0a1a06998a884b40bbf7491cd0a0fa448aedec9f2ab70ac3954b5b8b
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SSDEEP
12288:zH7Wcjdc/r2sxxiPGGAOOPSXDV8ClgVYhX5FSsf8Q66oIWr69oGE15jSsFZyoopF:zbCj2sObHtqQ4Q66DssoRNFZyo4gE
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 4 IoCs
resource yara_rule behavioral2/memory/3936-133-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/3936-137-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/3936-146-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/3936-154-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/5116-151-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral2/memory/5116-152-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral2/memory/5116-153-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 3 IoCs
resource yara_rule behavioral2/memory/5116-151-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral2/memory/5116-152-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral2/memory/5116-153-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral2/memory/4912-139-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/4912-141-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/4912-142-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/4912-143-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/4912-144-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/5116-148-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5116-150-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5116-151-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5116-152-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5116-153-0x0000000000400000-0x000000000041F000-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-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1236 set thread context of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 3936 set thread context of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 set thread context of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 -
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 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 1236 wrote to memory of 3936 1236 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 79 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 4912 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 80 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89 PID 3936 wrote to memory of 5116 3936 2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe"C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1236 -
C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe"C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3936 -
C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe/scomma "C:\Users\Admin\AppData\Local\Temp\9ZwJT60Paj.ini"3⤵PID:4912
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C:\Users\Admin\AppData\Local\Temp\2cb7cd75331102d17938c6986eddf2f5e67f2a43ff84ca99004fc5b33f0ae0f5.exe/scomma "C:\Users\Admin\AppData\Local\Temp\ndE2397R0D.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:5116
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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