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Analysis
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max time kernel
130s -
max time network
134s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
13/09/2024, 20:07
Static task
static1
Behavioral task
behavioral1
Sample
Tpnit.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Tpnit.exe
Resource
win10v2004-20240802-en
General
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Target
Tpnit.exe
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Size
959KB
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MD5
5b0a60ef51c05675082381b585d61bb8
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SHA1
a366c2ca83a519d0cff24f7b3ff6cdaa2412f673
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SHA256
f5b1deb060982e05d98c940ebf0b8d50cef95922fab5fed5ed8c2a9d7acdda80
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SHA512
7b67910f4b108aafb0c2e3a31128d052d836d4a4be648b7a0603e04800e00a0b709d449835ac0031958eacfa15555844590c49e1e5430aab0316477f01a6480b
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SSDEEP
24576:4wSCS8u8YPnQ/BpIZ5tkZLRmCfOKu/FAyyaP7y9xlfhqpGcbuueq:RzS38YPn6FZcFe0m9hqocburq
Malware Config
Extracted
snakekeylogger
https://api.telegram.org/bot7327372938:AAHFwuC3knQ9jY-1T98yh8owXZiixS_neU0/sendMessage?chat_id=6951521546
Signatures
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Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
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Snake Keylogger payload 1 IoCs
resource yara_rule behavioral2/memory/2928-1094-0x0000000140000000-0x0000000140024000-memory.dmp family_snakekeylogger -
Suspicious use of NtCreateUserProcessOtherParentProcess 1 IoCs
description pid Process procid_target PID 3560 created 3476 3560 Tpnit.exe 56 -
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Whyhyf = "C:\\Users\\Admin\\AppData\\Roaming\\Whyhyf.exe" Tpnit.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 18 checkip.dyndns.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3560 set thread context of 2928 3560 Tpnit.exe 101 -
Suspicious behavior: EnumeratesProcesses 5 IoCs
pid Process 3560 Tpnit.exe 3560 Tpnit.exe 2928 MSBuild.exe 2928 MSBuild.exe 2928 MSBuild.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3560 Tpnit.exe Token: SeDebugPrivilege 3560 Tpnit.exe Token: SeDebugPrivilege 2928 MSBuild.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 PID 3560 wrote to memory of 2928 3560 Tpnit.exe 101 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2170637797-568393320-3232933035-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 MSBuild.exe
Processes
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C:\Windows\Explorer.EXEC:\Windows\Explorer.EXE1⤵PID:3476
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C:\Users\Admin\AppData\Local\Temp\Tpnit.exe"C:\Users\Admin\AppData\Local\Temp\Tpnit.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3560
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework64\v4.0.30319\MSBuild.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:2928
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --field-trial-handle=4512,i,4174666705242427184,7333705955694532165,262144 --variations-seed-version --mojo-platform-channel-handle=4500 /prefetch:81⤵PID:3224