Analysis
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max time kernel
119s -
max time network
129s -
platform
windows7_x64 -
resource
win7-en-20210920 -
submitted
18-10-2021 11:18
Static task
static1
Behavioral task
behavioral1
Sample
New_Requests_35003502.exe
Resource
win7-en-20210920
Behavioral task
behavioral2
Sample
New_Requests_35003502.exe
Resource
win10-en-20211014
General
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Target
New_Requests_35003502.exe
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Size
640KB
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MD5
c35701db9ac9d8b75bb57b2758363804
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SHA1
fdf6f6997c0dd7228a904d70a2cbe97151c3405b
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SHA256
2d5fd822f5e87ccaac8fc9a90050383aed0e32abc3d54378357116771291af05
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SHA512
63562fb8154017a61a3e64fbd9c09494c6e87ba0b50352002be6d2c0e4e036caa89bf7212ef8cabb5936a2680fd5ad0a3cda6e87e97854039db53e01ee34db26
Malware Config
Extracted
snakekeylogger
Protocol: smtp- Host:
reptw.xyz - Port:
587 - Username:
[email protected] - Password:
=W;D)NMYK*HI
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Uses the VBS compiler for execution 1 TTPs
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 4 checkip.dyndns.org 8 freegeoip.app 9 freegeoip.app -
Suspicious use of SetThreadContext 1 IoCs
Processes:
New_Requests_35003502.exedescription pid process target process PID 2016 set thread context of 592 2016 New_Requests_35003502.exe vbc.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1828 2016 WerFault.exe New_Requests_35003502.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
Processes:
vbc.exeWerFault.exepid process 592 vbc.exe 1828 WerFault.exe 1828 WerFault.exe 1828 WerFault.exe 1828 WerFault.exe 1828 WerFault.exe -
Suspicious behavior: GetForegroundWindowSpam 1 IoCs
Processes:
WerFault.exepid process 1828 WerFault.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
New_Requests_35003502.exevbc.exeWerFault.exedescription pid process Token: SeDebugPrivilege 2016 New_Requests_35003502.exe Token: SeDebugPrivilege 592 vbc.exe Token: SeDebugPrivilege 1828 WerFault.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
New_Requests_35003502.exedescription pid process target process PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 592 2016 New_Requests_35003502.exe vbc.exe PID 2016 wrote to memory of 1828 2016 New_Requests_35003502.exe WerFault.exe PID 2016 wrote to memory of 1828 2016 New_Requests_35003502.exe WerFault.exe PID 2016 wrote to memory of 1828 2016 New_Requests_35003502.exe WerFault.exe PID 2016 wrote to memory of 1828 2016 New_Requests_35003502.exe WerFault.exe -
outlook_office_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe -
outlook_win_path 1 IoCs
Processes:
vbc.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-3456797065-1076791440-4146276586-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 vbc.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\New_Requests_35003502.exe"C:\Users\Admin\AppData\Local\Temp\New_Requests_35003502.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:592 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2016 -s 7962⤵
- Program crash
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
PID:1828