Analysis
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max time kernel
129s -
max time network
137s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-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 4584 powershell.exe -
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation obigfdsdf.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-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\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 20 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1680 set thread context of 232 1680 obigfdsdf.exe 91 -
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 4 IoCs
pid Process 232 obigfdsdf.exe 4584 powershell.exe 4584 powershell.exe 232 obigfdsdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 232 obigfdsdf.exe Token: SeDebugPrivilege 4584 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 1680 wrote to memory of 4584 1680 obigfdsdf.exe 89 PID 1680 wrote to memory of 4584 1680 obigfdsdf.exe 89 PID 1680 wrote to memory of 4584 1680 obigfdsdf.exe 89 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 PID 1680 wrote to memory of 232 1680 obigfdsdf.exe 91 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdf.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\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⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1680 -
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:4584
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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:232
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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
2Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
1KB
MD57ef67a0a2b1e31df887adcdaf86e4bbd
SHA1348aad52be33f1a0c477e2ace332ecf91bb0e1a8
SHA256af207d70281cc3264107da297e00ab97d0af2f055d6065ca5936cf69db6d783f
SHA5124ffab7944ec049f2597bda791de5fd3ae3578b03ef019d2222850b8f5a298e3aae8b6e33f71c38e47132d63fb58ab1b03c876b9a01665bc8bbcf01466e7d79e1
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82