Analysis
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max time kernel
73s -
max time network
34s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
26-11-2022 00:02
Static task
static1
Behavioral task
behavioral1
Sample
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe
Resource
win10v2004-20220812-en
General
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Target
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe
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Size
377KB
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MD5
388ceb608b170c58c29f10ddeeb3c9f3
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SHA1
24edfd36e667f0ba3fc56a7b3113691bd62ddf68
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SHA256
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7
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SHA512
72f89e463ef5fb0d73729095f0bf9206b693b82245973ae98491d73a8a5d01c91463504cc27ea1acdddac9b17177da3da4f9e8b1d5acf02e6f20e47948ed40d8
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SSDEEP
6144:ulGAxVnthTDjyTiv+4PCbm2D8LB+//wp4kfU0VW3jEDW+KQveg177cfwW+:NYVnTXeTZb/4g/KdXcADpeg177cfe
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 5 IoCs
Processes:
resource yara_rule behavioral1/memory/464-60-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/464-63-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/464-62-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/464-74-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/464-85-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1288-83-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1288-84-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
Processes:
resource yara_rule behavioral1/memory/1288-83-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1288-84-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
Processes:
resource yara_rule behavioral1/memory/1684-68-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1684-72-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1684-73-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1684-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1684-76-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1288-78-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1288-82-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1288-83-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1288-84-0x0000000000400000-0x000000000041F000-memory.dmp upx -
Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook accounts 1 TTPs 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exevbc.exedescription pid process target process PID 1216 set thread context of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 464 set thread context of 1684 464 vbc.exe vbc.exe PID 464 set thread context of 1288 464 vbc.exe vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exedescription pid process Token: SeDebugPrivilege 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
vbc.exepid process 464 vbc.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exevbc.exedescription pid process target process PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 1216 wrote to memory of 464 1216 571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1684 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe PID 464 wrote to memory of 1288 464 vbc.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe"C:\Users\Admin\AppData\Local\Temp\571aac6c9270108cccb93e5326ac378aca0e33b8cd3dd235f0776aaa3c7572c7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:464 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\oncEmvOiGv.ini"3⤵PID:1684
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\hHIw5tLMRF.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:1288
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\oncEmvOiGv.iniFilesize
5B
MD5d1ea279fb5559c020a1b4137dc4de237
SHA1db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3
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memory/464-85-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/464-74-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/464-57-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/464-58-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/464-60-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/464-63-0x0000000000401180-mapping.dmp
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memory/464-62-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/1216-66-0x0000000074040000-0x00000000745EB000-memory.dmpFilesize
5.7MB
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memory/1216-54-0x0000000074F01000-0x0000000074F03000-memory.dmpFilesize
8KB
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memory/1216-56-0x0000000074040000-0x00000000745EB000-memory.dmpFilesize
5.7MB
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memory/1216-55-0x0000000074040000-0x00000000745EB000-memory.dmpFilesize
5.7MB
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memory/1288-79-0x000000000041C410-mapping.dmp
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memory/1288-84-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1288-83-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1288-82-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1288-78-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1684-68-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1684-76-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1684-75-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1684-73-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1684-72-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1684-69-0x00000000004512E0-mapping.dmp