Analysis
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max time kernel
50s -
max time network
117s -
platform
windows7_x64 -
resource
win7-20220901-en -
resource tags
arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system -
submitted
27-11-2022 14:33
Static task
static1
Behavioral task
behavioral1
Sample
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe
Resource
win7-20220901-en
Behavioral task
behavioral2
Sample
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe
Resource
win10v2004-20221111-en
General
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Target
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe
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Size
485KB
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MD5
62841697da27359623d72d5badf5d92b
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SHA1
8f359a32c968c8704f312161de0045571aa115ba
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SHA256
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021
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SHA512
a75e6d2acbdc37ce71fc8955a9f44b17bc18b29a0cc2f1acd6961b304e6679fbeac21f9943668896c6381c57185766b3cecb3da76f1188c08d8f0022d0346c33
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SSDEEP
6144:JTWL/Jgcp+ZzyzEIPJhtQcYhND0NVVXZuuxrBGyMifRiyR4Kal6F4:YL3+ozPXtONQTJ8uFkyMipiyaKaU
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
Processes:
resource yara_rule behavioral1/memory/2040-59-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/2040-61-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/2040-62-0x0000000000401180-mapping.dmp family_isrstealer behavioral1/memory/2040-73-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/2040-88-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer behavioral1/memory/2040-89-0x0000000000400000-0x0000000000442000-memory.dmp family_isrstealer -
NirSoft MailPassView 4 IoCs
Password recovery tool for various email clients
Processes:
resource yara_rule behavioral1/memory/1944-84-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1944-85-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1944-86-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView behavioral1/memory/1944-87-0x0000000000400000-0x000000000041F000-memory.dmp MailPassView -
Nirsoft 4 IoCs
Processes:
resource yara_rule behavioral1/memory/1944-84-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1944-85-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1944-86-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft behavioral1/memory/1944-87-0x0000000000400000-0x000000000041F000-memory.dmp Nirsoft -
Processes:
resource yara_rule behavioral1/memory/1132-67-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1132-71-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1132-72-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1132-74-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1132-75-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1132-76-0x0000000000400000-0x0000000000453000-memory.dmp upx behavioral1/memory/1944-79-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1944-83-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1944-84-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1944-85-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1944-86-0x0000000000400000-0x000000000041F000-memory.dmp upx behavioral1/memory/1944-87-0x0000000000400000-0x000000000041F000-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-1-5-21-4063495947-34355257-727531523-1000\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts vbc.exe -
Suspicious use of SetThreadContext 3 IoCs
Processes:
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exevbc.exedescription pid process target process PID 1204 set thread context of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 2040 set thread context of 1132 2040 vbc.exe vbc.exe PID 2040 set thread context of 1944 2040 vbc.exe vbc.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exedescription pid process Token: SeDebugPrivilege 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
vbc.exepid process 2040 vbc.exe -
Suspicious use of WriteProcessMemory 26 IoCs
Processes:
f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exevbc.exedescription pid process target process PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 1204 wrote to memory of 2040 1204 f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1132 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe PID 2040 wrote to memory of 1944 2040 vbc.exe vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe"C:\Users\Admin\AppData\Local\Temp\f8be227a3ee9342184e540cc6f435b3121e56c3fe1e4d6a9bb4351d8f82bb021.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1204 -
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:2040 -
C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\Km5bKIAgYc.ini"3⤵PID:1132
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C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe/scomma "C:\Users\Admin\AppData\Local\Temp\lKYzQMbgFV.ini"3⤵
- Accesses Microsoft Outlook accounts
PID:1944
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\Km5bKIAgYc.iniFilesize
5B
MD5d1ea279fb5559c020a1b4137dc4de237
SHA1db6f8988af46b56216a6f0daf95ab8c9bdb57400
SHA256fcdcc2c46896915a1c695d6231f0fee336a668531b7a3da46178c80362546dba
SHA512720e9c284f0559015312df7fe977563e5e16f48d3506e51eb4016adf7971924d352f740b030aa3adc81b6f65fd1dba12df06d10fa6c115074e5097e7ee0f08b3
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memory/1132-72-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1132-76-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1132-75-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1132-74-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1132-67-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1132-68-0x00000000004512E0-mapping.dmp
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memory/1132-71-0x0000000000400000-0x0000000000453000-memory.dmpFilesize
332KB
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memory/1204-55-0x0000000074030000-0x00000000745DB000-memory.dmpFilesize
5.7MB
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memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmpFilesize
8KB
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memory/1204-65-0x0000000074030000-0x00000000745DB000-memory.dmpFilesize
5.7MB
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memory/1944-85-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-83-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-84-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-79-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-86-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-87-0x0000000000400000-0x000000000041F000-memory.dmpFilesize
124KB
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memory/1944-80-0x000000000041C410-mapping.dmp
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memory/2040-62-0x0000000000401180-mapping.dmp
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memory/2040-73-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-61-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-59-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-57-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-56-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-88-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB
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memory/2040-89-0x0000000000400000-0x0000000000442000-memory.dmpFilesize
264KB