Analysis
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max time kernel
136s -
max time network
148s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
23-10-2024 06:58
Static task
static1
Behavioral task
behavioral1
Sample
REVISED INVOICE.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
REVISED INVOICE.exe
Resource
win10v2004-20241007-en
General
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Target
REVISED INVOICE.exe
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Size
772KB
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MD5
76f0f7efa38fee04f22a3836c7f8f2d3
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SHA1
68bccecfc0128f4542ffc35aa4a4644c3f9fff0e
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SHA256
79d9270edbf86a9503b71bb27d04a88c1f8506fadad7b702adf97c5893f6cb14
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SHA512
9f71c798af7d25ebdf63d5a7987bca41ba2ff3eb379a70b971730c9291a4f44238c4b3f66f9d38968315581424e801a49e9f24df0e53ed94a62184553b36bf1c
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SSDEEP
12288:TlqG7jVsASFomUxB/U7UYyDD34kNn71L2PC2jxxjbaS47pxfd/TJQ8XV7XkR:b7RSOxP/JYy33Dpd2xv4VhfQ8lm
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
smtp.ionos.fr - Port:
587 - Username:
[email protected] - Password:
Jc.2o3o@ - 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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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:
REVISED INVOICE.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation REVISED INVOICE.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:
REVISED INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 REVISED INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 REVISED INVOICE.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 REVISED INVOICE.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 25 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
REVISED INVOICE.exedescription pid process target process PID 1720 set thread context of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.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 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
REVISED INVOICE.exeREVISED INVOICE.exepowershell.exeschtasks.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language REVISED INVOICE.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language REVISED INVOICE.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 11 IoCs
Processes:
REVISED INVOICE.exepowershell.exeREVISED INVOICE.exepid process 1720 REVISED INVOICE.exe 1720 REVISED INVOICE.exe 1720 REVISED INVOICE.exe 1720 REVISED INVOICE.exe 3348 powershell.exe 3348 powershell.exe 1720 REVISED INVOICE.exe 1720 REVISED INVOICE.exe 4580 REVISED INVOICE.exe 3348 powershell.exe 4580 REVISED INVOICE.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
REVISED INVOICE.exepowershell.exeREVISED INVOICE.exedescription pid process Token: SeDebugPrivilege 1720 REVISED INVOICE.exe Token: SeDebugPrivilege 3348 powershell.exe Token: SeDebugPrivilege 4580 REVISED INVOICE.exe -
Suspicious use of WriteProcessMemory 14 IoCs
Processes:
REVISED INVOICE.exedescription pid process target process PID 1720 wrote to memory of 3348 1720 REVISED INVOICE.exe powershell.exe PID 1720 wrote to memory of 3348 1720 REVISED INVOICE.exe powershell.exe PID 1720 wrote to memory of 3348 1720 REVISED INVOICE.exe powershell.exe PID 1720 wrote to memory of 964 1720 REVISED INVOICE.exe schtasks.exe PID 1720 wrote to memory of 964 1720 REVISED INVOICE.exe schtasks.exe PID 1720 wrote to memory of 964 1720 REVISED INVOICE.exe schtasks.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe PID 1720 wrote to memory of 4580 1720 REVISED INVOICE.exe REVISED INVOICE.exe -
outlook_office_path 1 IoCs
Processes:
REVISED INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 REVISED INVOICE.exe -
outlook_win_path 1 IoCs
Processes:
REVISED INVOICE.exedescription ioc process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 REVISED INVOICE.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1720 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\JfOfGZQ.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3348
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\JfOfGZQ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC91C.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:964
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C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE.exe"C:\Users\Admin\AppData\Local\Temp\REVISED INVOICE.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:4580
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Network
MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
1PowerShell
1Scheduled Task/Job
1Scheduled Task
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
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
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Filesize
1KB
MD5b15d1a9d3475c04f8f25ab3961ad83a0
SHA1a95e8930e058999d4ad434e3febeac17283e117f
SHA25649143e5efdb01124fc72e1de761f6c4a21abc907c871fb9347e342046a03618c
SHA512984f337a2bb5e679c685adaa983f4f33969e77ca21f0e59addc26adee590eac63762480c61ac74c6c2197d1f631c3f0f1f291638a4ab1d8ef8d248d875615090