Analysis
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max time kernel
136s -
max time network
152s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
30/10/2024, 00:24
Static task
static1
Behavioral task
behavioral1
Sample
2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe
Resource
win10v2004-20241007-en
General
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Target
2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe
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Size
3.8MB
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MD5
b38044c85c61344e55c645da14c2c5e9
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SHA1
3c7234f791f2da542d318965f6868b909a4b6c3e
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SHA256
20592cd3af7ef4fc50bf5df5ad426ff7ee6094239422ae1eec91467927e7170a
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SHA512
ae2a94a1b3be245e9226d39b81301dbc17e82815547343ac7c222f1d2e89038efb160a44699eb13abc41a53ef78b484bb31110a402457d22f931286ab5e927ad
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SSDEEP
98304:aF0lfx2WMXhJcemnWcOU/jIEeQfoR/IuOFVjUu5:v9x7ZeiLFIF0wu
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-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key value queried \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Control Panel\International\Geo\Nation Synaptics.exe -
Executes dropped EXE 4 IoCs
pid Process 4972 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4580 Synaptics.exe 3460 Synaptics.exe 4944 ._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-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 ._cache_Synaptics.exe Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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" 2024-10-29_b38044c85c61344e55c645da14c2c5e9_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 28 checkip.dyndns.org -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4008 set thread context of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4580 set thread context of 3460 4580 Synaptics.exe 107 -
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 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_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 -
Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString 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\ 2024-10-29_b38044c85c61344e55c645da14c2c5e9_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 2652 EXCEL.EXE -
Suspicious behavior: EnumeratesProcesses 10 IoCs
pid Process 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4972 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4580 Synaptics.exe 4580 Synaptics.exe 4972 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 4944 ._cache_Synaptics.exe 4944 ._cache_Synaptics.exe 4944 ._cache_Synaptics.exe -
Suspicious use of AdjustPrivilegeToken 4 IoCs
description pid Process Token: SeDebugPrivilege 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Token: SeDebugPrivilege 4972 ._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe Token: SeDebugPrivilege 4580 Synaptics.exe Token: SeDebugPrivilege 4944 ._cache_Synaptics.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2652 EXCEL.EXE 2652 EXCEL.EXE 2652 EXCEL.EXE 2652 EXCEL.EXE 2652 EXCEL.EXE 2652 EXCEL.EXE -
Suspicious use of WriteProcessMemory 31 IoCs
description pid Process procid_target PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4008 wrote to memory of 4840 4008 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 103 PID 4840 wrote to memory of 4972 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 104 PID 4840 wrote to memory of 4972 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 104 PID 4840 wrote to memory of 4972 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 104 PID 4840 wrote to memory of 4580 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 105 PID 4840 wrote to memory of 4580 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 105 PID 4840 wrote to memory of 4580 4840 2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe 105 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 4580 wrote to memory of 3460 4580 Synaptics.exe 107 PID 3460 wrote to memory of 4944 3460 Synaptics.exe 110 PID 3460 wrote to memory of 4944 3460 Synaptics.exe 110 PID 3460 wrote to memory of 4944 3460 Synaptics.exe 110 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2878641211-696417878-3864914810-1000\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-1-5-21-2878641211-696417878-3864914810-1000\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\2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-29_b38044c85c61344e55c645da14c2c5e9_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:4008 -
C:\Users\Admin\AppData\Local\Temp\2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\2024-10-29_b38044c85c61344e55c645da14c2c5e9_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:4840 -
C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe"C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_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:4972
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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:4580 -
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:3460 -
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:4944
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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:2652
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
3.8MB
MD5b38044c85c61344e55c645da14c2c5e9
SHA13c7234f791f2da542d318965f6868b909a4b6c3e
SHA25620592cd3af7ef4fc50bf5df5ad426ff7ee6094239422ae1eec91467927e7170a
SHA512ae2a94a1b3be245e9226d39b81301dbc17e82815547343ac7c222f1d2e89038efb160a44699eb13abc41a53ef78b484bb31110a402457d22f931286ab5e927ad
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C:\Users\Admin\AppData\Local\Temp\._cache_2024-10-29_b38044c85c61344e55c645da14c2c5e9_avoslocker_hijackloader.exe
Filesize269KB
MD55446eaf87fe423755a4611cd0ff939e4
SHA1c4b2153f43659c6b0ff11527a02b0b0dbfe75b11
SHA256f7f3df09f0759f03d0d3d114caadac597c767ebfeaba7115d2963c732864daff
SHA5121b82fc09028091ca718ee02853c0a4a3096ac92f2ba707e181c78cccb8ca717deedda3d7605a704112660575ab0d30f556e8317bbc15940c96265b0da2b4a73c
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Filesize
22KB
MD5fbc15f051e7336176da4aa9a77f20c31
SHA18b4de6477369db49b9ebc5b6a495ad91942e2ca0
SHA2560a3319be5506c49c64e4befc0925258e57b691d92a9d8edfac7352b9cc395817
SHA512b94db14176246132b61da5ffb2a7a7097cf98b5ef980af5c51e63af6aa6eda575b6eb89c1776162c9e83d485a8540a1155cf5952daf71e3b6dd7504bb326bb81
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Filesize
17KB
MD5e566fc53051035e1e6fd0ed1823de0f9
SHA100bc96c48b98676ecd67e81a6f1d7754e4156044
SHA2568e574b4ae6502230c0829e2319a6c146aebd51b7008bf5bbfb731424d7952c15
SHA512a12f56ff30ea35381c2b8f8af2446cf1daa21ee872e98cad4b863db060acd4c33c5760918c277dadb7a490cb4ca2f925d59c70dc5171e16601a11bc4a6542b04