Analysis
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max time kernel
61s -
max time network
70s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
02-12-2022 17:36
Static task
static1
Behavioral task
behavioral1
Sample
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe
Resource
win10v2004-20220812-en
General
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Target
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe
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Size
910KB
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MD5
db811c57db214dad46532e0635cd6dda
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SHA1
fa5079599bdef98564161451ad971a532c20d15b
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SHA256
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2
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SHA512
e753d056c25005dd2bc20a977240a7479b667000ab452b628e92ba6b6315f929d0183fa6170f8400d133388d14ca12d3e74fbfadbdf2fef343dfb1e622f37702
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SSDEEP
24576:yppWKKEKzqntnhEMGgVz0MlYBHu6nSCdrvk:41KEKYtnhTpIu6p
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/1716-60-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/1716-63-0x00000000004011F8-mapping.dmp family_isrstealer behavioral1/memory/1716-62-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/1716-65-0x0000000000400000-0x0000000000470000-memory.dmp family_isrstealer behavioral1/memory/1716-68-0x0000000000401000-0x0000000000414000-memory.dmp family_isrstealer -
NirSoft MailPassView 3 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1840-102-0x000000000041C3A0-mapping.dmp MailPassView behavioral1/memory/1840-107-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1840-109-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
NirSoft WebBrowserPassView 5 IoCs
Password recovery tool for various web browsers
Processes:
resource yara_rule behavioral1/memory/2016-86-0x000000000043F420-mapping.dmp WebBrowserPassView behavioral1/memory/2016-92-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/2016-85-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/2016-110-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView behavioral1/memory/2016-111-0x0000000000400000-0x0000000000454000-memory.dmp WebBrowserPassView -
Nirsoft 10 IoCs
Processes:
resource yara_rule behavioral1/memory/2016-86-0x000000000043F420-mapping.dmp Nirsoft behavioral1/memory/2016-92-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/1800-101-0x0000000000400000-0x0000000000426000-memory.dmp Nirsoft behavioral1/memory/1840-102-0x000000000041C3A0-mapping.dmp Nirsoft behavioral1/memory/2016-85-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/1800-108-0x0000000000400000-0x0000000000426000-memory.dmp Nirsoft behavioral1/memory/1840-107-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1840-109-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/2016-110-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft behavioral1/memory/2016-111-0x0000000000400000-0x0000000000454000-memory.dmp Nirsoft -
Processes:
resource yara_rule behavioral1/memory/1800-98-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1840-100-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1800-91-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1800-101-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1840-106-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1800-108-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral1/memory/1840-107-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1840-109-0x0000000000400000-0x000000000041F000-memory.dmp upx -
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
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe -
Suspicious use of SetThreadContext 5 IoCs
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exea3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exea3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exedescription pid process target process PID 1160 set thread context of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 set thread context of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 set thread context of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 set thread context of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 set thread context of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe -
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 4 IoCs
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exepid process 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exea3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exedescription pid process Token: SeDebugPrivilege 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe Token: SeDebugPrivilege 1800 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exepid process 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe -
Suspicious use of WriteProcessMemory 38 IoCs
Processes:
a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exea3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exea3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exedescription pid process target process PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1160 wrote to memory of 1716 1160 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 1716 wrote to memory of 816 1716 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 2016 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1800 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe PID 816 wrote to memory of 1840 816 a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1160 -
C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exeC:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1716 -
C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"3⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:816 -
C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data.dmp4⤵PID:2016
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C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data1.dmp4⤵
- Suspicious use of AdjustPrivilegeToken
PID:1800
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C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe"C:\Users\Admin\AppData\Local\Temp\a3c001d96a6423bd7665c2b287d0320c8bea56f351a51a7eed24353a2028b0c2.exe" /scomma C:\Users\Admin\AppData\Local\Temp\data2.dmp4⤵
- Accesses Microsoft Outlook accounts
PID:1840
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