Analysis
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max time kernel
120s -
max time network
129s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
06-12-2024 10:50
Static task
static1
Behavioral task
behavioral1
Sample
obigfdsdf.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
obigfdsdf.exe
Resource
win10v2004-20241007-en
General
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Target
obigfdsdf.exe
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Size
783KB
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MD5
4f80565082ea4d95d933decf9cd50c61
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SHA1
2830f9d5f41bbecd2ae105ed0b9a8d49327c8594
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SHA256
d854f347061d9d7b8a9788ab8633c3f07619e29bd440924507a0147484c217c3
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SHA512
9dcdae5c7a5b4181ade738884e208508bf317742ca2be0726716aa71236670a50dae2bec947b3fcc12cfc85c756810f18a9f403de4eb428b4a73a4759037f227
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SSDEEP
24576:cmCJVCABws3ok2B3KE0cZICs/dZvo7sK:cJ0ABsB1P0wICsVIs
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.jhxkgroup.online - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@@ - Email To:
[email protected]
Signatures
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VIPKeylogger
VIPKeylogger is a keylogger and infostealer written in C# and it resembles SnakeKeylogger that was found in 2020.
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Vipkeylogger family
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Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2724 powershell.exe -
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 3 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
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2104 set thread context of 2880 2104 obigfdsdf.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 3 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language obigfdsdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language obigfdsdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 2104 obigfdsdf.exe 2104 obigfdsdf.exe 2880 obigfdsdf.exe 2724 powershell.exe 2880 obigfdsdf.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2104 obigfdsdf.exe Token: SeDebugPrivilege 2880 obigfdsdf.exe Token: SeDebugPrivilege 2724 powershell.exe -
Suspicious use of WriteProcessMemory 17 IoCs
description pid Process procid_target PID 2104 wrote to memory of 2724 2104 obigfdsdf.exe 31 PID 2104 wrote to memory of 2724 2104 obigfdsdf.exe 31 PID 2104 wrote to memory of 2724 2104 obigfdsdf.exe 31 PID 2104 wrote to memory of 2724 2104 obigfdsdf.exe 31 PID 2104 wrote to memory of 2736 2104 obigfdsdf.exe 33 PID 2104 wrote to memory of 2736 2104 obigfdsdf.exe 33 PID 2104 wrote to memory of 2736 2104 obigfdsdf.exe 33 PID 2104 wrote to memory of 2736 2104 obigfdsdf.exe 33 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 PID 2104 wrote to memory of 2880 2104 obigfdsdf.exe 34 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4177215427-74451935-3209572229-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2104 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2724
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C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"2⤵PID:2736
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C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"C:\Users\Admin\AppData\Local\Temp\obigfdsdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2880
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Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
2Credentials In Files
2