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Analysis
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max time kernel
55s -
max time network
58s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
01/12/2022, 07:41
Static task
static1
Behavioral task
behavioral1
Sample
7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe
Resource
win10v2004-20220812-en
General
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Target
7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe
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Size
7.4MB
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MD5
042d8f91b6cf63017646706b74561b27
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SHA1
4bfe69b43b1bfe28702a7ef44cc68127b0b5ae05
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SHA256
7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474
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SHA512
73f68f192ec224a138da103eabb0c885b3a07bfb0bd4f5f5774d1294d614535ffefa58d404c1e9b1e0e9268456a198b81b79008b5dcefdfcd12c1c228e186b92
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SSDEEP
196608:pAnqVdHABvooPl0+cTY3tZLJejmOAWx1AtdmCimv/SHqUUHv/Swv/SW45qUUpcQE:+wQ5N0+mYZ1itLAdWm8q/Hz5aq/RC7p
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/2016-59-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/2016-61-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/2016-62-0x00000000004011F8-mapping.dmp family_isrstealer behavioral1/memory/2016-116-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/2016-120-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/2016-121-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
resource yara_rule behavioral1/memory/1572-113-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1572-118-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1572-123-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
resource yara_rule behavioral1/memory/996-87-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/996-88-0x000000000043F420-mapping.dmp WebBrowserPassView behavioral1/memory/996-100-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/996-117-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/996-122-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView -
Nirsoft 11 IoCs
resource yara_rule behavioral1/memory/996-87-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/996-88-0x000000000043F420-mapping.dmp Nirsoft behavioral1/memory/996-100-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/432-95-0x0000000000423BC0-mapping.dmp Nirsoft behavioral1/memory/432-110-0x0000000000400000-0x0000000000426000-memory.dmp Nirsoft behavioral1/memory/1572-113-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/432-114-0x0000000000400000-0x0000000000426000-memory.dmp Nirsoft behavioral1/memory/996-117-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/1572-118-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/996-122-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/1572-123-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
Executes dropped EXE 5 IoCs
pid Process 2016 cvtres.exe 556 cvtres.exe 996 cvtres.exe 432 cvtres.exe 1572 cvtres.exe -
resource yara_rule behavioral1/memory/432-94-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/432-102-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1572-105-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/432-110-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1572-112-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1572-113-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/432-114-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1572-118-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1572-123-0x0000000000400000-0x000000000041F000-memory.dmp upx -
Loads dropped DLL 5 IoCs
pid Process 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 2016 cvtres.exe 556 cvtres.exe 556 cvtres.exe 556 cvtres.exe -
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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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 cvtres.exe -
Suspicious use of SetThreadContext 5 IoCs
description pid Process procid_target PID 1736 set thread context of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 2016 set thread context of 556 2016 cvtres.exe 29 PID 556 set thread context of 996 556 cvtres.exe 30 PID 556 set thread context of 432 556 cvtres.exe 31 PID 556 set thread context of 1572 556 cvtres.exe 32 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 2016 cvtres.exe 2016 cvtres.exe 2016 cvtres.exe 2016 cvtres.exe 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 432 cvtres.exe Token: SeDebugPrivilege 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe Token: SeDebugPrivilege 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2016 cvtres.exe -
Suspicious use of WriteProcessMemory 38 IoCs
description pid Process procid_target PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 1736 wrote to memory of 2016 1736 7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe 28 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 2016 wrote to memory of 556 2016 cvtres.exe 29 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 996 556 cvtres.exe 30 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 432 556 cvtres.exe 31 PID 556 wrote to memory of 1572 556 cvtres.exe 32 PID 556 wrote to memory of 1572 556 cvtres.exe 32 PID 556 wrote to memory of 1572 556 cvtres.exe 32 PID 556 wrote to memory of 1572 556 cvtres.exe 32 PID 556 wrote to memory of 1572 556 cvtres.exe 32 PID 556 wrote to memory of 1572 556 cvtres.exe 32
Processes
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C:\Users\Admin\AppData\Local\Temp\7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe"C:\Users\Admin\AppData\Local\Temp\7b083e02dacacc8c7e04a9cf71c96ede50190d031e6fd9c5c21db08e80efb474.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1736 -
C:\Users\Admin\AppData\Local\Temp\cvtres.exeC:\Users\Admin\AppData\Local\Temp\\cvtres.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Users\Admin\AppData\Local\Temp\cvtres.exe"C:\Users\Admin\AppData\Local\Temp\cvtres.exe"3⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:556 -
C:\Users\Admin\AppData\Local\Temp\cvtres.exe"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp4⤵
- Executes dropped EXE
PID:996
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C:\Users\Admin\AppData\Local\Temp\cvtres.exe"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp4⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
PID:432
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C:\Users\Admin\AppData\Local\Temp\cvtres.exe"C:\Users\Admin\AppData\Local\Temp\cvtres.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp4⤵
- Executes dropped EXE
- Accesses Microsoft Outlook accounts
PID:1572
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2
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Filesize
31KB
MD5ed797d8dc2c92401985d162e42ffa450
SHA10f02fc517c7facc4baefde4fe9467fb6488ebabe
SHA256b746362010a101cb5931bc066f0f4d3fc740c02a68c1f37fc3c8e6c87fd7cb1e
SHA512e831a6ff987f3ef29982da16afad06938b68eddd43c234ba88d1c96a1b5547f2284baf35cbb3a5bfd75e7f0445d14daa014e0ba00b4db72c67f83f0a314c80c2