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Analysis
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max time kernel
64s -
max time network
45s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
23/11/2022, 14:54
Static task
static1
Behavioral task
behavioral1
Sample
161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe
Resource
win10v2004-20221111-en
General
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Target
161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe
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Size
404KB
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MD5
4e41e8f87c89c2f7dd423a0750871b81
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SHA1
fc85caa8b48841fbd8064fc7bbe3a1d13b2c8992
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SHA256
161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6
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SHA512
1eaf21197de113e55c2bdf2db6522245a2381d0696f9caa4f6c26e9443cdfe38f78c4d8a04e0b0baae58c1ee7a406fdf1336bfad4a921e1d6da2c09913f790ed
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SSDEEP
12288:/B/USBseMoZWv6TuKHM+mm7Q2aQfRE6QMm:/BUJepkyTrHM+mEjaQftQ3
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 behavioral1/memory/1988-61-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1988-64-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/1988-63-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1988-86-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/532-83-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/532-85-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral1/memory/532-83-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/532-85-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral1/memory/1560-71-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1560-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1560-76-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1560-77-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/532-78-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/532-82-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/532-83-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1560-84-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/532-85-0x0000000000400000-0x000000000041F000-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-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1248 set thread context of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1988 set thread context of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 set thread context of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1248 wrote to memory of 1988 1248 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 26 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 1560 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 27 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28 PID 1988 wrote to memory of 532 1988 161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe"C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1248 -
C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe"C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1988 -
C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe/scomma "C:\Users\Admin\AppData\Local\Temp\8IgF5wRIO1.ini"3⤵PID:1560
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C:\Users\Admin\AppData\Local\Temp\161d4de39ca95ff50682c36624d03beca497957619f7b69b5ecae8b045cf22f6.exe/scomma "C:\Users\Admin\AppData\Local\Temp\DeUYmF4p5D.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:532
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