Analysis
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max time kernel
120s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
27/02/2025, 17:03
Static task
static1
Behavioral task
behavioral1
Sample
r3849023.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
r3849023.exe
Resource
win10v2004-20250217-en
General
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Target
r3849023.exe
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Size
789KB
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MD5
3d6c55d8cf9c0229344c818ab9d6b49d
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SHA1
95b09d6ffebcac2642c11b50756637cc9c80d258
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SHA256
fbf0138afa653833d5a479a84738698e41d7c9565f368583e9a607867a94fad4
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SHA512
f7a014b4a939e5d16e74663648d9d4388ca8ae83013a5dabe993f8c0a268d8e23ca0d406ac98c78d93f0e5a13d71f2b8901d567c30860bc4d0279ea4ba09552d
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SSDEEP
24576:rf2qeCrhMS8iikUQ0Mt+x6khIhuDmbF0jMvode:rfhrUQCFK0SCMgI
Malware Config
Extracted
vipkeylogger
Protocol: smtp- Host:
mail.nic.ru - Port:
587 - Username:
[email protected] - Password:
I7opTBeuHKaBKa3 - 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.
pid Process 2884 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-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 r3849023.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 r3849023.exe Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 r3849023.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 checkip.dyndns.org 8 reallyfreegeoip.org 9 reallyfreegeoip.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2512 set thread context of 2864 2512 r3849023.exe 36 -
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.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language r3849023.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language powershell.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language r3849023.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 592 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
pid Process 2512 r3849023.exe 2512 r3849023.exe 2512 r3849023.exe 2512 r3849023.exe 2864 r3849023.exe 2884 powershell.exe 2864 r3849023.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2512 r3849023.exe Token: SeDebugPrivilege 2864 r3849023.exe Token: SeDebugPrivilege 2884 powershell.exe -
Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2512 wrote to memory of 2884 2512 r3849023.exe 31 PID 2512 wrote to memory of 2884 2512 r3849023.exe 31 PID 2512 wrote to memory of 2884 2512 r3849023.exe 31 PID 2512 wrote to memory of 2884 2512 r3849023.exe 31 PID 2512 wrote to memory of 592 2512 r3849023.exe 33 PID 2512 wrote to memory of 592 2512 r3849023.exe 33 PID 2512 wrote to memory of 592 2512 r3849023.exe 33 PID 2512 wrote to memory of 592 2512 r3849023.exe 33 PID 2512 wrote to memory of 2856 2512 r3849023.exe 35 PID 2512 wrote to memory of 2856 2512 r3849023.exe 35 PID 2512 wrote to memory of 2856 2512 r3849023.exe 35 PID 2512 wrote to memory of 2856 2512 r3849023.exe 35 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 PID 2512 wrote to memory of 2864 2512 r3849023.exe 36 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 r3849023.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3533259084-2542256011-65585152-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 r3849023.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\r3849023.exe"C:\Users\Admin\AppData\Local\Temp\r3849023.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2512 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\VHTfwSDOqIgZQz.exe"2⤵
- Command and Scripting Interpreter: PowerShell
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2884
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VHTfwSDOqIgZQz" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF1BE.tmp"2⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:592
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C:\Users\Admin\AppData\Local\Temp\r3849023.exe"C:\Users\Admin\AppData\Local\Temp\r3849023.exe"2⤵PID:2856
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C:\Users\Admin\AppData\Local\Temp\r3849023.exe"C:\Users\Admin\AppData\Local\Temp\r3849023.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:2864
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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
MD543cded08df953b39fe9e41bedef0d17b
SHA12ba5213feb41f1c76464a4f9e7b6fe8bb766298f
SHA25616a45e4f8269d07796dc9300e1656d9c4945cdc87bcb7e9f10691a07f6b35aa6
SHA51209e94c4ec130a35911b78a2f24e39faf162b8c3031f8c661361195bc3f0e625dc583f1c17f49e908d38c1ccc004952d3a4a970d1e64c8713c864298512072be4