Analysis
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max time kernel
121s -
max time network
140s -
platform
windows7_x64 -
resource
win7-20241010-en -
resource tags
arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system -
submitted
14-11-2024 19:20
Static task
static1
Behavioral task
behavioral1
Sample
xXdquUOrM1vD3An.rtf
Resource
win7-20241010-en
Behavioral task
behavioral2
Sample
xXdquUOrM1vD3An.rtf
Resource
win10v2004-20241007-en
General
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Target
xXdquUOrM1vD3An.rtf
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Size
799KB
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MD5
2087de574fefae441db7ced132da6407
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SHA1
6d8b4083d71075be31068808232805ea486f77d8
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SHA256
dc8ae41681fdf19abcf62b27b3d8359c32ba6f20bee1e24b7ce9b37d4faebe8b
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SHA512
02ead1047af13379ee161c25e1db2c83033daf752629159b9c5836ed0c1d5f6436da73299d920cc10cefe6d4edd3272266d9b4f2088225bc434a53c20ba43ce9
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SSDEEP
6144:cwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAYwAaZqGYZHtRD5+XHFTqG9:96e
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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Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid Process 4 2008 EQNEDT32.EXE -
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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Downloads MZ/PE file
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Executes dropped EXE 2 IoCs
Processes:
obigfdsdfgh.exeobigfdsdfgh.exepid Process 2764 obigfdsdfgh.exe 2608 obigfdsdfgh.exe -
Loads dropped DLL 2 IoCs
Processes:
EQNEDT32.EXEpid Process 2008 EQNEDT32.EXE 2008 EQNEDT32.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:
obigfdsdfgh.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdfgh.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdfgh.exe Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdfgh.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 5 checkip.dyndns.org -
Drops file in System32 directory 1 IoCs
Processes:
powershell.exedescription ioc Process File opened for modification C:\Windows\SysWOW64\%ProgramData%\Microsoft\Windows\Start Menu\Programs\Accessories\Windows PowerShell\Windows PowerShell.lnk powershell.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
obigfdsdfgh.exedescription pid Process procid_target PID 2764 set thread context of 2608 2764 obigfdsdfgh.exe 38 -
Drops file in Windows directory 1 IoCs
Processes:
WINWORD.EXEdescription ioc Process File opened for modification C:\Windows\Debug\WIA\wiatrace.log WINWORD.EXE -
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 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
WINWORD.EXEEQNEDT32.EXEobigfdsdfgh.exeobigfdsdfgh.exepowershell.exedescription ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WINWORD.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language EQNEDT32.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language obigfdsdfgh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language obigfdsdfgh.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Office loads VBA resources, possible macro or embedded object present
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Launches Equation Editor 1 TTPs 1 IoCs
Equation Editor is an old Office component often targeted by exploits such as CVE-2017-11882.
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Suspicious behavior: AddClipboardFormatListener 1 IoCs
Processes:
WINWORD.EXEpid Process 804 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
obigfdsdfgh.exepowershell.exepid Process 2608 obigfdsdfgh.exe 340 powershell.exe 2608 obigfdsdfgh.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
obigfdsdfgh.exepowershell.exedescription pid Process Token: SeDebugPrivilege 2608 obigfdsdfgh.exe Token: SeDebugPrivilege 340 powershell.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid Process 804 WINWORD.EXE 804 WINWORD.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEobigfdsdfgh.exedescription pid Process procid_target PID 2008 wrote to memory of 2764 2008 EQNEDT32.EXE 33 PID 2008 wrote to memory of 2764 2008 EQNEDT32.EXE 33 PID 2008 wrote to memory of 2764 2008 EQNEDT32.EXE 33 PID 2008 wrote to memory of 2764 2008 EQNEDT32.EXE 33 PID 804 wrote to memory of 2664 804 WINWORD.EXE 35 PID 804 wrote to memory of 2664 804 WINWORD.EXE 35 PID 804 wrote to memory of 2664 804 WINWORD.EXE 35 PID 804 wrote to memory of 2664 804 WINWORD.EXE 35 PID 2764 wrote to memory of 340 2764 obigfdsdfgh.exe 36 PID 2764 wrote to memory of 340 2764 obigfdsdfgh.exe 36 PID 2764 wrote to memory of 340 2764 obigfdsdfgh.exe 36 PID 2764 wrote to memory of 340 2764 obigfdsdfgh.exe 36 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 PID 2764 wrote to memory of 2608 2764 obigfdsdfgh.exe 38 -
outlook_office_path 1 IoCs
Processes:
obigfdsdfgh.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdfgh.exe -
outlook_win_path 1 IoCs
Processes:
obigfdsdfgh.exedescription ioc Process Key opened \REGISTRY\USER\S-1-5-21-3692679935-4019334568-335155002-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obigfdsdfgh.exe
Processes
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C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE"C:\Program Files (x86)\Microsoft Office\Office14\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\xXdquUOrM1vD3An.rtf"1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:804 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2664
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C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE"C:\Program Files (x86)\Common Files\Microsoft Shared\EQUATION\EQNEDT32.EXE" -Embedding1⤵
- Blocklisted process makes network request
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Launches Equation Editor
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Users\Admin\AppData\Roaming\obigfdsdfgh.exe"C:\Users\Admin\AppData\Roaming\obigfdsdfgh.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2764 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\obigfdsdfgh.exe"3⤵
- Command and Scripting Interpreter: PowerShell
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:340
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C:\Users\Admin\AppData\Roaming\obigfdsdfgh.exe"C:\Users\Admin\AppData\Roaming\obigfdsdfgh.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2608
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Exploitation for Client Execution
1Credential 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
783KB
MD54f80565082ea4d95d933decf9cd50c61
SHA12830f9d5f41bbecd2ae105ed0b9a8d49327c8594
SHA256d854f347061d9d7b8a9788ab8633c3f07619e29bd440924507a0147484c217c3
SHA5129dcdae5c7a5b4181ade738884e208508bf317742ca2be0726716aa71236670a50dae2bec947b3fcc12cfc85c756810f18a9f403de4eb428b4a73a4759037f227