Analysis
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max time kernel
139s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
31/10/2024, 19:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe
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Size
6.9MB
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MD5
8d62e700b688c2cd65741c96363fe1e8
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SHA1
a2051f1f358c874a603ff25f0fad8f62c08b4595
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SHA256
a899e62a8c7ba50eee558ea74ab735499ba057304714ec26d02dcc14adfb3148
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SHA512
675a2fbd71ec7203b33fb454cf9b347db8f2adced9de2b4a932013f39f3062674b8d2ec739aa1587f2f457e07085588a776ad9a9880d5d77d3387460ca1e58da
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SSDEEP
98304:XF0lfx2WMXhJcemnWqF0lfx2WMXhJcemnW9F0lfx2WMXhJcemnWcOU/jIEeQfoRS:S9x7ZeiI9x7ZeiD9x7ZeiLFIF0wu
Malware Config
Extracted
vipkeylogger
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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Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key value queried \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Control Panel\International\Geo\Nation Synaptics.exe -
Executes dropped EXE 5 IoCs
pid Process 4848 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 5000 Synaptics.exe 716 Synaptics.exe 2360 Synaptics.exe 2580 ._cache_Synaptics.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 6 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Synaptics Pointing Device Driver = "C:\\ProgramData\\Synaptics\\Synaptics.exe" 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.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 27 checkip.dyndns.org -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 436 set thread context of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 5000 set thread context of 2360 5000 Synaptics.exe 100 -
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 6 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 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Synaptics.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Synaptics.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ._cache_Synaptics.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE -
Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE -
Modifies registry class 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{1f3427c8-5c10-4210-aa03-2ee45287d668}\Instance\ Synaptics.exe -
Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1288 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 12 IoCs
pid Process 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 4848 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 5000 Synaptics.exe 5000 Synaptics.exe 4848 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 5000 Synaptics.exe 5000 Synaptics.exe 2580 ._cache_Synaptics.exe 2580 ._cache_Synaptics.exe 2580 ._cache_Synaptics.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Token: SeDebugPrivilege 4848 ._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe Token: SeDebugPrivilege 5000 Synaptics.exe Token: SeDebugPrivilege 2580 ._cache_Synaptics.exe -
Suspicious use of SetWindowsHookEx 8 IoCs
pid Process 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE 1288 EXCEL.EXE -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 436 wrote to memory of 1896 436 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 92 PID 1896 wrote to memory of 4848 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 93 PID 1896 wrote to memory of 4848 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 93 PID 1896 wrote to memory of 4848 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 93 PID 1896 wrote to memory of 5000 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 94 PID 1896 wrote to memory of 5000 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 94 PID 1896 wrote to memory of 5000 1896 2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe 94 PID 5000 wrote to memory of 716 5000 Synaptics.exe 99 PID 5000 wrote to memory of 716 5000 Synaptics.exe 99 PID 5000 wrote to memory of 716 5000 Synaptics.exe 99 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 5000 wrote to memory of 2360 5000 Synaptics.exe 100 PID 2360 wrote to memory of 2580 2360 Synaptics.exe 102 PID 2360 wrote to memory of 2580 2360 Synaptics.exe 102 PID 2360 wrote to memory of 2580 2360 Synaptics.exe 102 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-493223053-2004649691-1575712786-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:436 -
C:\Users\Admin\AppData\Local\Temp\2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"2⤵
- Checks computer location settings
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1896 -
C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe"3⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4848
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe" InjUpdate3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5000 -
C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe"4⤵
- Executes dropped EXE
PID:716
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C:\ProgramData\Synaptics\Synaptics.exe"C:\ProgramData\Synaptics\Synaptics.exe"4⤵
- Checks computer location settings
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"C:\Users\Admin\AppData\Local\Temp\._cache_Synaptics.exe"5⤵
- 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:2580
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C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" /automation -Embedding1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
PID:1288
Network
MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
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
6.9MB
MD58d62e700b688c2cd65741c96363fe1e8
SHA1a2051f1f358c874a603ff25f0fad8f62c08b4595
SHA256a899e62a8c7ba50eee558ea74ab735499ba057304714ec26d02dcc14adfb3148
SHA512675a2fbd71ec7203b33fb454cf9b347db8f2adced9de2b4a932013f39f3062674b8d2ec739aa1587f2f457e07085588a776ad9a9880d5d77d3387460ca1e58da
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C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-31_8d62e700b688c2cd65741c96363fe1e8_avoslocker_hijackloader.exe
Filesize269KB
MD55446eaf87fe423755a4611cd0ff939e4
SHA1c4b2153f43659c6b0ff11527a02b0b0dbfe75b11
SHA256f7f3df09f0759f03d0d3d114caadac597c767ebfeaba7115d2963c732864daff
SHA5121b82fc09028091ca718ee02853c0a4a3096ac92f2ba707e181c78cccb8ca717deedda3d7605a704112660575ab0d30f556e8317bbc15940c96265b0da2b4a73c
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Filesize
21KB
MD571fbe8f31de15571b89095c160e86228
SHA1e42989ffcf4769a574b8c4a36f3bffa6579d3018
SHA256d5546c1adbdf5046a36f4fb3339f017838c889112e56872444c29f505005bcce
SHA512f62ea3c0886bbd61670c696005967e384f14900d35aaf6d628d69621014eeb2517ca01d8a4805d6f270b52d499c316b2cb2b6f55c8fa7400be986fc426b1901b
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Filesize
17KB
MD5e566fc53051035e1e6fd0ed1823de0f9
SHA100bc96c48b98676ecd67e81a6f1d7754e4156044
SHA2568e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
SHA512a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04