Analysis
- max time kernel
144s - max time network
181s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
11/05/2022, 03:20
Static task
static1
Behavioral task
behavioral1
Sample
PR NO 132.pdf.exe
Resource
win7-20220414-en
0 signatures
0 seconds
Behavioral task
behavioral2
Sample
PR NO 132.pdf.exe
Resource
win10v2004-20220414-en
0 signatures
0 seconds
General
- Target PR NO 132.pdf.exe
- Size 580KB
- Sample220511-dvrlvahfak
- SHA256 5e78cf499e73d06b346f84de0a36188587cb0789a9a02899d3e5d0dcd4a15520
- MD5 ac94b0e54b9334f25c1ee1aa29834b26
- SHA1 2051c396be3542324b0c2b06dcc7f8651cc5d5e8
- SHA512 32498c361397c96d2e75f12ded932fdb320188d631ff50a1f279d833eb840778e9d01576a9e7f7cd5958bc7ba5dd8b3be026ecc18cdfb5bdcbb4f1352eed60c3
- MD5 SHA1 SHA512
Score
10/10
Malware Config
Extracted
Family
-
snakekeylogger
Credentials
-
Protocol
smtp
-
Host
mail.skyshine.com.my
-
Port
587
-
Username
-
Password
inthesky2022
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger Payload 1 IoCs
resource yara_rule behavioral2/memory/4304-137-0x0000000000400000-0x0000000000426000-memory.dmp family_snakekeylogger - Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.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.
flow ioc 31 checkip.dyndns.org - Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1200 set thread context of 4304 1200 PR NO 132.pdf.exe 90 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 4304 RegSvcs.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4304 RegSvcs.exe - Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 PID 1200 wrote to memory of 4304 1200 PR NO 132.pdf.exe 90 - outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe - outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 RegSvcs.exe
Processes
-
C:\Users\Admin\AppData\Local\Temp\PR NO 132.pdf.exe"C:\Users\Admin\AppData\Local\Temp\PR NO 132.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1200 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:4304
-