Analysis
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max time kernel
122s -
max time network
138s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
02-10-2024 20:34
Static task
static1
Behavioral task
behavioral1
Sample
SCANNEDCOPY.rtf
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
SCANNEDCOPY.rtf
Resource
win10v2004-20240802-en
General
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Target
SCANNEDCOPY.rtf
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Size
699KB
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MD5
4b6a210109e97c5168659caaac0895f1
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SHA1
5edaab62f69f03a0ce76130be6281ed12b8974f2
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SHA256
1abbd41ea4c50b4db3acfe9a14f07b93ee52e0ea8515f34cc007f4d314d60746
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SHA512
59505a64198a017143c01f58564b14b282e5f502ad23b1f71f4d0c0458d17ece1b96bf2fd0d8f38a8ded2eef0f433c3b1c134cb947a05fc565bf0e9ddf7972e7
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SSDEEP
6144:/wAYwAYwAYwAYwASlhaA48Ix9kN25/bQ9/vlT79Gz:cE
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
185.198.59.26 - 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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Blocklisted process makes network request 1 IoCs
Processes:
EQNEDT32.EXEflow pid process 4 2124 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:
obiyen4385651.exeobiyen4385651.exepid process 2756 obiyen4385651.exe 3052 obiyen4385651.exe -
Loads dropped DLL 1 IoCs
Processes:
EQNEDT32.EXEpid process 2124 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:
obiyen4385651.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obiyen4385651.exe Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obiyen4385651.exe Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obiyen4385651.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:
obiyen4385651.exedescription pid process target process PID 2756 set thread context of 3052 2756 obiyen4385651.exe obiyen4385651.exe -
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.EXEobiyen4385651.exeobiyen4385651.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 obiyen4385651.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language obiyen4385651.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 2108 WINWORD.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
obiyen4385651.exepowershell.exepid process 3052 obiyen4385651.exe 2672 powershell.exe 3052 obiyen4385651.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
obiyen4385651.exepowershell.exedescription pid process Token: SeDebugPrivilege 3052 obiyen4385651.exe Token: SeDebugPrivilege 2672 powershell.exe -
Suspicious use of SetWindowsHookEx 2 IoCs
Processes:
WINWORD.EXEpid process 2108 WINWORD.EXE 2108 WINWORD.EXE -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
EQNEDT32.EXEWINWORD.EXEobiyen4385651.exedescription pid process target process PID 2124 wrote to memory of 2756 2124 EQNEDT32.EXE obiyen4385651.exe PID 2124 wrote to memory of 2756 2124 EQNEDT32.EXE obiyen4385651.exe PID 2124 wrote to memory of 2756 2124 EQNEDT32.EXE obiyen4385651.exe PID 2124 wrote to memory of 2756 2124 EQNEDT32.EXE obiyen4385651.exe PID 2108 wrote to memory of 2768 2108 WINWORD.EXE splwow64.exe PID 2108 wrote to memory of 2768 2108 WINWORD.EXE splwow64.exe PID 2108 wrote to memory of 2768 2108 WINWORD.EXE splwow64.exe PID 2108 wrote to memory of 2768 2108 WINWORD.EXE splwow64.exe PID 2756 wrote to memory of 2672 2756 obiyen4385651.exe powershell.exe PID 2756 wrote to memory of 2672 2756 obiyen4385651.exe powershell.exe PID 2756 wrote to memory of 2672 2756 obiyen4385651.exe powershell.exe PID 2756 wrote to memory of 2672 2756 obiyen4385651.exe powershell.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe PID 2756 wrote to memory of 3052 2756 obiyen4385651.exe obiyen4385651.exe -
outlook_office_path 1 IoCs
Processes:
obiyen4385651.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obiyen4385651.exe -
outlook_win_path 1 IoCs
Processes:
obiyen4385651.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-457978338-2990298471-2379561640-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 obiyen4385651.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\SCANNEDCOPY.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:2108 -
C:\Windows\splwow64.exeC:\Windows\splwow64.exe 122882⤵PID:2768
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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:2124 -
C:\Users\Admin\AppData\Roaming\obiyen4385651.exe"C:\Users\Admin\AppData\Roaming\obiyen4385651.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2756 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\obiyen4385651.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:2672 -
C:\Users\Admin\AppData\Roaming\obiyen4385651.exe"C:\Users\Admin\AppData\Roaming\obiyen4385651.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:3052
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
861KB
MD5dd429f3dc6b27f618d4aa22ad5391e39
SHA1a951266db9c02ea4c4330e09e3167312ac158f97
SHA2563684bf9a9c63ff32ed0e00dcdbe15ba654a395f2063fd476b50a4d7d1653c9aa
SHA5126ab12ec0dc5ec17330eca4dfd6a4a87ebf32657506f7d5258ea206d9228730e6ab53d070f4962d34c65e5b0ed56ef36892c9a5370712a68284767ee8ee637d65