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Analysis
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max time kernel
68s -
max time network
53s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
27/11/2022, 00:49
Static task
static1
Behavioral task
behavioral1
Sample
16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe
Resource
win10v2004-20221111-en
General
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Target
16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe
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Size
339KB
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MD5
a2cf6d18298eb04d2959f5a6c70099d3
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SHA1
87e5e13e2d434a8d61988df6bd401ea27b354f8f
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SHA256
16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae
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SHA512
8c32f78af6945ab660f7277e58b9d17a5df96327b14d55dde2c5418a782d871cacca27f150f504c8e32ad6129ded765fb5b3df12d055087b36db40fbb2555281
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SSDEEP
6144:G8cPjWN+vQIMmBhnNMIRW6qS9JK6n0GbFL/dxVjiN7nfP8DHY:G8aSN+vQtm/DqkjFLFLwfPK4
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/1728-58-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1728-60-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1728-61-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/1728-70-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1728-78-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1728-86-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/2024-84-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/2024-85-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral1/memory/2024-84-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/2024-85-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral1/memory/1732-67-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1732-72-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1732-73-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1732-74-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1732-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/2024-79-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2024-83-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2024-84-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/2024-85-0x0000000000400000-0x000000000041F000-memory.dmp upx -
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 svchost.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1600 set thread context of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1728 set thread context of 1732 1728 svchost.exe 29 PID 1728 set thread context of 2024 1728 svchost.exe 32 -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1728 svchost.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1600 wrote to memory of 1728 1600 16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe 28 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 1732 1728 svchost.exe 29 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32 PID 1728 wrote to memory of 2024 1728 svchost.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe"C:\Users\Admin\AppData\Local\Temp\16b775d01e522b0631272e77daa42cb756e53b52528545f07a1d5f712227fdae.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1600 -
C:\Windows\SysWOW64\svchost.exe"C:\Windows\system32\svchost.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1728 -
C:\Windows\SysWOW64\svchost.exe/scomma "C:\Users\Admin\AppData\Local\Temp\5Ckq2qR01t.ini"3⤵PID:1732
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C:\Windows\SysWOW64\svchost.exe/scomma "C:\Users\Admin\AppData\Local\Temp\6ao2rMdNiO.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:2024
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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