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Analysis
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max time kernel
72s -
max time network
35s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
27/11/2022, 11:02
Static task
static1
Behavioral task
behavioral1
Sample
PURCHASE#ORDER#466657732883.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
PURCHASE#ORDER#466657732883.exe
Resource
win10v2004-20220901-en
General
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Target
PURCHASE#ORDER#466657732883.exe
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Size
1.1MB
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MD5
021563e9bea3b8ba2aaf553c0788095a
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SHA1
609ec1923cfa157a7184c2cd3457c9f2cd0c95e7
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SHA256
363284566ccb6103fcf30d4cd766e09fdcbe40afb2792b528d1f643a1baf4684
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SHA512
21ec708452f00511dc7c371fa0cb78fcd50384b656708b144ad16b6dd3b457ef43777e2e0df87d2d0d33408e8a19144c7135a2b5aa38f81ee402461f46a3f9b5
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SSDEEP
12288:ZaWzgMg7v3qnCiMErQohh0F4CCJ8lny/Q6//r69oGE15jSsFZyoop6WCD+z:4aHMv6Corjqny/Q6/zsoRNFZyouC2
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/1532-58-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1532-60-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1532-61-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/1532-71-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1532-74-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/1532-83-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 2 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1320-81-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1320-82-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 2 IoCs
resource yara_rule behavioral1/memory/1320-81-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1320-82-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
resource yara_rule behavioral1/memory/952-65-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/952-69-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/952-70-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/952-72-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/952-73-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1320-76-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1320-80-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1320-81-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1320-82-0x0000000000400000-0x000000000041F000-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-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts PURCHASE#ORDER#466657732883.exe -
Suspicious use of SetThreadContext 3 IoCs
description pid Process procid_target PID 1736 set thread context of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1532 set thread context of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 set thread context of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious use of FindShellTrayWindow 3 IoCs
pid Process 1736 PURCHASE#ORDER#466657732883.exe 1736 PURCHASE#ORDER#466657732883.exe 1736 PURCHASE#ORDER#466657732883.exe -
Suspicious use of SendNotifyMessage 3 IoCs
pid Process 1736 PURCHASE#ORDER#466657732883.exe 1736 PURCHASE#ORDER#466657732883.exe 1736 PURCHASE#ORDER#466657732883.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1532 PURCHASE#ORDER#466657732883.exe -
Suspicious use of WriteProcessMemory 25 IoCs
description pid Process procid_target PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1736 wrote to memory of 1532 1736 PURCHASE#ORDER#466657732883.exe 28 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 952 1532 PURCHASE#ORDER#466657732883.exe 29 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30 PID 1532 wrote to memory of 1320 1532 PURCHASE#ORDER#466657732883.exe 30
Processes
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C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe"C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1532 -
C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe/scomma "C:\Users\Admin\AppData\Local\Temp\v6jnPC7wOD.ini"3⤵PID:952
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C:\Users\Admin\AppData\Local\Temp\PURCHASE#ORDER#466657732883.exe/scomma "C:\Users\Admin\AppData\Local\Temp\tfKJdEYAgR.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:1320
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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