Analysis
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max time kernel
144s -
max time network
113s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
19-10-2022 14:15
Static task
static1
Behavioral task
behavioral1
Sample
tmp.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
tmp.exe
Resource
win10v2004-20220812-en
General
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Target
tmp.exe
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Size
881KB
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MD5
4b28d8e218f5dfe20541b32fca297074
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SHA1
a5b715011f2bd3229e3acf3d88131a61043eba1a
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SHA256
ecd2c1eb9e0c374746d9148a15db8deb551d46d3c45bd075e7928b1f3210f4bc
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SHA512
04fac1bf2cb45ea967ddf9e5cf34fc1582b094fd0d0423ba6f56e889fb9e58b6b85f848201855446f540de19b8665fef1bc5d5f07face17955682cbcad4707ac
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SSDEEP
12288:rMXcyHcfKPLcYdXQawrPI2F2QVokACzkRj8U8oxfEunphMnX:QNcfMLciXQlrR2QukACgRHM
Malware Config
Extracted
blustealer
https://api.telegram.org/bot5576673774:AAF__hFRh9bcJV72HkFb-9eZR9JNNyuOmFM/sendMessage?chat_id=1194722650
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 4 IoCs
resource yara_rule behavioral1/memory/1704-75-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty behavioral1/memory/1704-76-0x00000000000A4F6E-mapping.dmp family_stormkitty behavioral1/memory/1704-78-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty behavioral1/memory/1704-80-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.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 4 icanhazip.com -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 740 set thread context of 1120 740 tmp.exe 27 PID 1120 set thread context of 1704 1120 tmp.exe 28 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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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 1704 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1120 tmp.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 740 wrote to memory of 1120 740 tmp.exe 27 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 PID 1120 wrote to memory of 1704 1120 tmp.exe 28 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:740 -
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1120 -
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:1704
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