Analysis
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max time kernel
150s -
max time network
135s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
19-10-2022 12:01
Static task
static1
Behavioral task
behavioral1
Sample
GFSBHDHDHDHHD.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
GFSBHDHDHDHHD.exe
Resource
win10v2004-20220812-en
General
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Target
GFSBHDHDHDHHD.exe
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Size
140KB
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MD5
35c0717be78278ae5819daea4df7b636
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SHA1
77162cdbbb1b8ff5c1cfa8b151f65c3dc3bf0ce0
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SHA256
541dcecae2d6ac17d9af5291b3d05cca35631c72279759b8b44c98d54416454f
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SHA512
d9826b94d7af1eb792958abb479d55665f3722f298879a104a44a76af0c8531e383f7184d51a1c281b577248800bccd273dc0d50573f39dd78e9fcf03b5dc66c
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SSDEEP
3072:M6Iq60Sma/wfKbm3+AHrJuVTBychy4M+3CZG5kKPyA:Uma/wib++0rJuVochyxE
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5627356603:AAG-Mx0TbSHRRW6IwndrpX3VLZdhd6C-Zac/sendMessage?chat_id=5472437377
Signatures
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BluStealer
A Modular information stealer written in Visual Basic.
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StormKitty
StormKitty is an open source info stealer written in C#.
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StormKitty payload 1 IoCs
resource yara_rule behavioral2/memory/5112-142-0x00000000009B0000-0x00000000009CA000-memory.dmp family_stormkitty -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
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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 11 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 4916 set thread context of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 1304 set thread context of 5112 1304 Caspol.exe 83 -
Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 AppLaunch.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier AppLaunch.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 5112 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1304 Caspol.exe -
Suspicious use of WriteProcessMemory 13 IoCs
description pid Process procid_target PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 4916 wrote to memory of 1304 4916 GFSBHDHDHDHHD.exe 82 PID 1304 wrote to memory of 5112 1304 Caspol.exe 83 PID 1304 wrote to memory of 5112 1304 Caspol.exe 83 PID 1304 wrote to memory of 5112 1304 Caspol.exe 83 PID 1304 wrote to memory of 5112 1304 Caspol.exe 83 PID 1304 wrote to memory of 5112 1304 Caspol.exe 83 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-2629973501-4017243118-3254762364-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\GFSBHDHDHDHHD.exe"C:\Users\Admin\AppData\Local\Temp\GFSBHDHDHDHHD.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4916 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1304 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
PID:5112
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