Analysis
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max time kernel
138s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20231023-en -
resource tags
arch:x64arch:x86image:win10v2004-20231023-enlocale:en-usos:windows10-2004-x64system -
submitted
24-10-2023 20:07
Static task
static1
Behavioral task
behavioral1
Sample
NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe
Resource
win7-20231023-en
Behavioral task
behavioral2
Sample
NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe
Resource
win10v2004-20231023-en
General
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Target
NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe
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Size
432KB
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MD5
652fc277b44f8481ea0fd8d4a661a1e5
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SHA1
4c2e669b51228ab92a0bcbd55979a234e567da67
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SHA256
77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084
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SHA512
ba99a2fedff0308b6eb4c087cb67b17b62059ff29e2b511995eb1fec2a826b2433f1105a0d115daac278a91097b90303e2e1cdb3469b477f5b1e2b730b8f9ae4
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SSDEEP
12288:yD7gUiV2OazGypq9Q/NGbEPGLf6JYrOiqo+ip1:n2OazTNYEW6cmip
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot6243209595:AAGECSmdSqJiVZcdFoBvotoaKcKT9Lz5Gvw/sendMessage?chat_id=1070926352
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/416-8-0x0000000000400000-0x0000000000424000-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-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\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 1 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exedescription pid process target process PID 2464 set thread context of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 416 RegAsm.exe 416 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
RegAsm.exedescription pid process Token: SeDebugPrivilege 416 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exedescription pid process target process PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe PID 2464 wrote to memory of 416 2464 NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe RegAsm.exe -
outlook_office_path 1 IoCs
Processes:
RegAsm.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2231940048-779848787-2990559741-1000\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-1-5-21-2231940048-779848787-2990559741-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe"C:\Users\Admin\AppData\Local\Temp\NEAS.77206304b64e1d2f6b0f1dede51784cb8fc6b2dad113676fe065de07a89b8084exe_JC.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2464 -
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:416