Analysis
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max time kernel
169s -
max time network
180s -
platform
windows10-2004_x64 -
resource
win10v2004-20231025-en -
resource tags
arch:x64arch:x86image:win10v2004-20231025-enlocale:en-usos:windows10-2004-x64system -
submitted
08-11-2023 07:59
Static task
static1
Behavioral task
behavioral1
Sample
PO#757764.PDF.exe
Resource
win7-20231025-en
Behavioral task
behavioral2
Sample
PO#757764.PDF.exe
Resource
win10v2004-20231025-en
General
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Target
PO#757764.PDF.exe
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Size
367KB
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MD5
7d35dcb3b0fbd2ac5df7fa3bd140d5ed
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SHA1
a7976420e477172042cd97c7e717b6fe793e9e9a
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SHA256
483d3db33740a19cf3e53acd5a0b50e223121c6828553d14449a6dc12497e894
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SHA512
a73434f71723cef7b88430d824d50d742861dc9afde4ee4eb5d9aa1075a2dd8310c112a54921cc34c69caedde51937fae4d0415dbfe3838922cd6f143d9c0b74
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SSDEEP
6144:yAY8QgjLaR06z1RI5HiZB/vgiEIogkzeXk0uEGpJSVwaPZP8sqgds8wJdbrrhLPl:BaR06z1RI5HgdEgkzeXkWusDdsIDvywi
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
mail.belt-tech.com.my - Port:
587 - Username:
[email protected] - Password:
Beltechpg@1234 - Email To:
[email protected]
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
Processes:
resource yara_rule behavioral2/memory/3684-10-0x0000000000400000-0x0000000000424000-memory.dmp family_snakekeylogger -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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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 profiles 1 TTPs 3 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 74 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
PO#757764.PDF.exedescription pid process target process PID 60 set thread context of 3684 60 PO#757764.PDF.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 3684 RegAsm.exe 3684 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 3684 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
PO#757764.PDF.exedescription pid process target process PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe PID 60 wrote to memory of 3684 60 PO#757764.PDF.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe -
outlook_win_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-177160434-2093019976-369403398-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO#757764.PDF.exe"C:\Users\Admin\AppData\Local\Temp\PO#757764.PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:60 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:3684