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Analysis
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max time kernel
89s -
max time network
36s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
25/11/2022, 02:18
Static task
static1
Behavioral task
behavioral1
Sample
4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe
Resource
win10v2004-20220812-en
General
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Target
4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe
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Size
344KB
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MD5
87a98db6af2353cc097dc85484f97ff8
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SHA1
433ef975fd9cffd9ee28d87a01bc963392fb2acb
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SHA256
4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1
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SHA512
da11af4d38b674249ff2368e4b90dcfd3d4fced3ebcac12a14aa22623f0d789ecdb386083181d5ca14040003854deaf194f167606bcbf6bcf5b2d2b696d7535c
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SSDEEP
6144:Toe/JOO2Dmb894GIQzEmYrPUwWCh4ePil1CV+Pk0ylQLPJ2tPHQtmAx:ToecDe894ZQzrYrX5h4eKXCVyiEBwPHs
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/1072-60-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1072-62-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1072-63-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/1072-85-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1372-83-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1372-84-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral1/memory/1372-83-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1372-84-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral1/memory/1412-69-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1412-73-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1412-74-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1412-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1412-76-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1372-78-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1372-82-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1372-83-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1372-84-0x0000000000400000-0x000000000041F000-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-1-5-21-575491160-2295418218-1540667289-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1704 set thread context of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1072 set thread context of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 set thread context of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe -
Suspicious use of WriteProcessMemory 26 IoCs
description pid Process procid_target PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1704 wrote to memory of 1072 1704 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 28 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1412 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 29 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30 PID 1072 wrote to memory of 1372 1072 4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe"C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1704 -
C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe"C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1072 -
C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe/scomma "C:\Users\Admin\AppData\Local\Temp\NN5FZ3T792.ini"3⤵PID:1412
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C:\Users\Admin\AppData\Local\Temp\4309cf5fb9b2df3f0697a704dc8fa1764ecb5fc0c89ec0a49e4d62e7746650e1.exe/scomma "C:\Users\Admin\AppData\Local\Temp\21quMaoIXB.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:1372
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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