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Analysis
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max time kernel
147s -
max time network
169s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
02/08/2022, 20:44
Static task
static1
Behavioral task
behavioral1
Sample
579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe
Resource
win10v2004-20220721-en
General
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Target
579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe
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Size
1.1MB
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MD5
2d475dbdfd7a378689d984a04677e641
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SHA1
1a673fb62bb6e29fb3d9ef0d40e480cbad541879
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SHA256
579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498
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SHA512
cf9e9014fc5b462ef5d2326c452d922b3c3b3f1317eed74b4620345fe8eeef15779abdf239d87a8c5dcb2e124c3d4214a0be8a06d43be3108e348091a7706fc5
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5330579892:AAHDIOXrD-d-pMU_JI4pPczBI962-9fokRs/sendMessage?chat_id=1494890429
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-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 3076 set thread context of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3588 set thread context of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 -
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 52 Mozilla/4.0 (compatible; Win32; WinHttp.WinHttpRequest.5) -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3076 wrote to memory of 3588 3076 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 95 PID 3588 wrote to memory of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 PID 3588 wrote to memory of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 PID 3588 wrote to memory of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 PID 3588 wrote to memory of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 PID 3588 wrote to memory of 3496 3588 579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe 96 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe"C:\Users\Admin\AppData\Local\Temp\579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3076 -
C:\Users\Admin\AppData\Local\Temp\579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe"C:\Users\Admin\AppData\Local\Temp\579c3138028884421849a6d210996f27da317f22d228a98d9bd0704786090498.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3588 -
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:3496
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