Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
02-10-2024 01:31
Static task
static1
Behavioral task
behavioral1
Sample
b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
Resource
win10v2004-20240802-en
General
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Target
b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
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Size
751KB
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MD5
102c9ce1c659517c4ea924c2044305b7
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SHA1
942b0a7e2077eca38b9b6ff16d89722cbbbf7002
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SHA256
b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310
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SHA512
eca6ed6a871e9fbee67feb73534bff544f052d6b3e1058a68b4602f159f089193f0f576384e6cd49373d50200d71bb4aeadd151c0fb81a77a6246849af2f39f6
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SSDEEP
12288:L3TmP4kyFSnIZgc1D7COp2JwlmsxS4kZHtfi390V+KA7rC7LOmDZ:2gBOI9D7CO0JqTSRNfiQsG7LOmD
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.pymetal.net - Port:
587 - Username:
[email protected] - Password:
21hnosgomezrecambios2021 - 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 2 IoCs
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
pid Process 2776 powershell.exe 2732 powershell.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-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.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 4 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2860 set thread context of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 2808 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 1692 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 2732 powershell.exe 2776 powershell.exe 1692 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Token: SeDebugPrivilege 1692 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe Token: SeDebugPrivilege 2732 powershell.exe Token: SeDebugPrivilege 2776 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2860 wrote to memory of 2776 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 31 PID 2860 wrote to memory of 2776 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 31 PID 2860 wrote to memory of 2776 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 31 PID 2860 wrote to memory of 2776 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 31 PID 2860 wrote to memory of 2732 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 33 PID 2860 wrote to memory of 2732 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 33 PID 2860 wrote to memory of 2732 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 33 PID 2860 wrote to memory of 2732 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 33 PID 2860 wrote to memory of 2808 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 35 PID 2860 wrote to memory of 2808 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 35 PID 2860 wrote to memory of 2808 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 35 PID 2860 wrote to memory of 2808 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 35 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 PID 2860 wrote to memory of 1692 2860 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe 37 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2860 -
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\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2776
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\AcEnrS.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2732
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\AcEnrS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp1304.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2808
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C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.exe"C:\Users\Admin\AppData\Local\Temp\b31cbc6ec2eb2b790c422f0f960bb1436106d92958703cb005ccdef38887e310.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:1692
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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
1KB
MD557f2ee8c2486154c08544330ea9356c7
SHA155ec1eae5e76d37adb765ba98eaf8507cc3cb4ef
SHA25609c854ea0eb675ca3865116b3a3869cc2674b02d2b355fa673e38b2f5ae94639
SHA5128b1bed125bdd527611f1b14e5f7f0463500f769e7cf00837cb86843f5d08e6e444a9b98dbad22a8e7bd8c1a01ebb4ffd3b95adea76f31b33a0f21ba70d2c6010
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C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\Y6MZ7C85G1KRCXDLSGSZ.temp
Filesize7KB
MD5574b091eee3162d6cc458026f780830e
SHA1997be06be743e540d6e119aa4b0be7c8d2deb00d
SHA256f7f8085d911b52ee4203fe2b54ff025fc844eb6e0593da3a4c6fe38aa11fb99b
SHA512425351f88e2d1b2e7d7ae7a9aadc9eacf906bbc1d2844cebe51466f25eb688ad74d35e0e40659f86a3ca5acd5d3d8c047be7bd35c12c553d49788649d33fb2a9