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Analysis
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max time kernel
182s -
max time network
187s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
23/11/2022, 16:13
Static task
static1
Behavioral task
behavioral1
Sample
ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe
Resource
win10v2004-20220812-en
General
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Target
ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe
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Size
316KB
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MD5
df3cdfe099877b9e5d8aa57cd6ac6cc4
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SHA1
4e76f3993e44826517c0d23c5357c386d2af5ae9
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SHA256
ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d
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SHA512
a140c963de1d70246296e263586dfda76d64629cbd83e73d440d37ed53777b57a58b403bd1504e6cd4206874976ed8a8a2e714ab3ce7dc5919b2025313ee810d
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SSDEEP
6144:8F3jZLdg8k2nY3hx4rm2KNshkp3nzPO7wGfY0t1y6eeOdT:md3k2nLm2KNshq3zy/YD65KT
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/1444-133-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/1444-137-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/1444-147-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral2/memory/1444-154-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral2/memory/4352-152-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral2/memory/4352-153-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral2/memory/4352-152-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral2/memory/4352-153-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral2/memory/624-140-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/624-142-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/624-143-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/624-144-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/624-145-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral2/memory/4352-149-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/4352-151-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/4352-152-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral2/memory/4352-153-0x0000000000400000-0x000000000041F000-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-1-5-21-2295526160-1155304984-640977766-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1300 set thread context of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1444 set thread context of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 set thread context of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe -
Suspicious use of SetWindowsHookEx 3 IoCs
pid Process 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe -
Suspicious use of WriteProcessMemory 24 IoCs
description pid Process procid_target PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1300 wrote to memory of 1444 1300 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 81 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 624 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 82 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83 PID 1444 wrote to memory of 4352 1444 ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe"C:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1300 -
C:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exeC:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1444 -
C:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe/scomma "C:\Users\Admin\AppData\Local\Temp\J6IOpKWFuI.ini"3⤵PID:624
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C:\Users\Admin\AppData\Local\Temp\ac474724d9fb41c8252fdeb3cabae9212b7a82bbef5d48cd45aa7c53a38ed34d.exe/scomma "C:\Users\Admin\AppData\Local\Temp\SUDXDk5DWy.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:4352
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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