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Resubmissions
15/09/2022, 18:03
220915-wnac4aheaj 1013/09/2022, 17:07
220913-vndvvagba2 1012/09/2022, 11:46
220912-nxcktaghfq 10Analysis
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max time kernel
146s -
max time network
151s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
12/09/2022, 11:46
Static task
static1
Behavioral task
behavioral1
Sample
7.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
7.exe
Resource
win10v2004-20220812-en
General
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Target
7.exe
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Size
1.2MB
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MD5
9525bd775591fc765660eeb64002741f
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SHA1
0cb836092ba969107916c7445c790876a61912a6
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SHA256
cd101d3d19d5e797d9a151c9c4dd1db497f8e4ec680a7fb99a69b6af36634445
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SHA512
4ecea438e61f1b5decde0218ccf38146fadbda35531fe8b79ddd5cd47014d185cff8c6d94e6f4e1aaa7478d12c20b2c9d392ccbfa642be97c1b272003bb3df10
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SSDEEP
24576:C5nVyP/M6tQ5Cr0qwvNIQFQdS6vK2NqM4:IVA/TtQclwvNICQpvK2NqF
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5450700540:AAEJyEEV8BKgYUKmnCPZxp19kD9GVSRup5M/sendMessage?chat_id=5422342474
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1196 set thread context of 912 1196 7.exe 93 PID 912 set thread context of 5084 912 7.exe 99 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Script User-Agent 1 IoCs
Uses user-agent string associated with script host/environment.
description flow ioc HTTP User-Agent header 58 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 912 7.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 1196 wrote to memory of 912 1196 7.exe 93 PID 912 wrote to memory of 5084 912 7.exe 99 PID 912 wrote to memory of 5084 912 7.exe 99 PID 912 wrote to memory of 5084 912 7.exe 99 PID 912 wrote to memory of 5084 912 7.exe 99 PID 912 wrote to memory of 5084 912 7.exe 99 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\7.exe"C:\Users\Admin\AppData\Local\Temp\7.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1196 -
C:\Users\Admin\AppData\Local\Temp\7.exe"C:\Users\Admin\AppData\Local\Temp\7.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:912 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- outlook_office_path
- outlook_win_path
PID:5084
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