Analysis
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max time kernel
111s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20220901-en -
resource tags
arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2022 16:58
Static task
static1
Behavioral task
behavioral1
Sample
334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe
Resource
win10v2004-20220901-en
General
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Target
334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe
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Size
1.1MB
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MD5
fe69e2c669e484d822beef87581390e0
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SHA1
2cc7e3298c66a74555290aa36f79fa9b0d7104b6
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SHA256
334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70
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SHA512
b82ee68e44e04d99bf2ab3dee4e907b829bc31d2ef33fa3043ecec876143e91fc53a9311bf0bb88e8790b510988184f02c187f1aed4ae602461649efa0d2fa79
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SSDEEP
12288:/aWzgMg7v3qnCiMErQohh0F4CCJ8lny/Qo6oImr69oGE15jSsFZyoopgrvsOrm:iaHMv6Corjqny/Qo6DcsoRNFZyoPsOrm
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/2332-133-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/2332-143-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/2332-145-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/2332-152-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/5100-150-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral2/memory/5100-151-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral2/memory/5100-150-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral2/memory/5100-151-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral2/memory/1944-138-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/1944-140-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/1944-141-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/1944-142-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/5100-147-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5100-149-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5100-150-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/5100-151-0x0000000000400000-0x000000000041F000-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-1-5-21-929662420-1054238289-2961194603-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 2952 set thread context of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2332 set thread context of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 set thread context of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.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 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe -
Suspicious use of WriteProcessMemory 23 IoCs
description pid Process procid_target PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2952 wrote to memory of 2332 2952 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 83 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 1944 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 84 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89 PID 2332 wrote to memory of 5100 2332 334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe"C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2952 -
C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe"C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2332 -
C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe/scomma "C:\Users\Admin\AppData\Local\Temp\s0e5PRVIh2.ini"3⤵PID:1944
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C:\Users\Admin\AppData\Local\Temp\334a7e54bc6b7c3e988aaf09b20187544b2348d18e69f08bca8d57632d812a70.exe/scomma "C:\Users\Admin\AppData\Local\Temp\IXSbgN7Q4p.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:5100
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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