Analysis
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max time kernel
120s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
25-11-2024 08:04
Static task
static1
Behavioral task
behavioral1
Sample
INQUIRY_pdf.exe
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
INQUIRY_pdf.exe
Resource
win10v2004-20241007-en
General
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Target
INQUIRY_pdf.exe
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Size
749KB
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MD5
3885966389f63ca00a45ff5aa413ec37
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SHA1
b154cc76e443fa9b3f697a430c95146e5d7261f3
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SHA256
0c8cf2991746319e1f1782ad0677c671abc6c3b53129fcbafd93ede7e60c4a8b
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SHA512
330b6f2f09ae9600134e4280f1a7b9f92ddc44b6fcb107bb42285eb810cb408a05b6c5f6b113991a6d365d37757caacf6f0315a3f75a1a6092d24fcb0501dfb9
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SSDEEP
12288:kbeXO/k6POZAJZhwDFkc+shhna2BE6tRcbi+gwrHBAnfBKPtM:KeXGk6WShoxhnaIRRc++guCAV
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
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.
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
Processes:
INQUIRY_pdf.exedescription ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Control Panel\International\Geo\Nation INQUIRY_pdf.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
Processes:
INQUIRY_pdf.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY_pdf.exe Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY_pdf.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 18 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
INQUIRY_pdf.exedescription pid Process procid_target PID 4528 set thread context of 1208 4528 INQUIRY_pdf.exe 98 -
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.
Processes:
INQUIRY_pdf.exeINQUIRY_pdf.exepowershell.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language INQUIRY_pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language INQUIRY_pdf.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
INQUIRY_pdf.exepowershell.exepid Process 1208 INQUIRY_pdf.exe 3252 powershell.exe 3252 powershell.exe 1208 INQUIRY_pdf.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
INQUIRY_pdf.exepowershell.exedescription pid Process Token: SeDebugPrivilege 1208 INQUIRY_pdf.exe Token: SeDebugPrivilege 3252 powershell.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
INQUIRY_pdf.exedescription pid Process procid_target PID 4528 wrote to memory of 3252 4528 INQUIRY_pdf.exe 96 PID 4528 wrote to memory of 3252 4528 INQUIRY_pdf.exe 96 PID 4528 wrote to memory of 3252 4528 INQUIRY_pdf.exe 96 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 PID 4528 wrote to memory of 1208 4528 INQUIRY_pdf.exe 98 -
outlook_office_path 1 IoCs
Processes:
INQUIRY_pdf.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY_pdf.exe -
outlook_win_path 1 IoCs
Processes:
INQUIRY_pdf.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 INQUIRY_pdf.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:4528 -
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\INQUIRY_pdf.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3252
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C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.exe"C:\Users\Admin\AppData\Local\Temp\INQUIRY_pdf.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:1208
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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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82