Analysis
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max time kernel
142s -
max time network
76s -
platform
windows7_x64 -
resource
win7-20220718-en -
resource tags
arch:x64arch:x86image:win7-20220718-enlocale:en-usos:windows7-x64system -
submitted
12/08/2022, 09:40
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_20210706_142426_2309801.doc.exe
Resource
win7-20220718-en
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_20210706_142426_2309801.doc.exe
Resource
win10v2004-20220721-en
General
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Target
Halkbank_Ekstre_20210706_142426_2309801.doc.exe
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Size
628KB
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MD5
e5399f1591e286e34e46bf3d168f2cca
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SHA1
38d5b0867cebb5e49de67e42134d3ca53f1f4abc
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SHA256
1fa00eab8fe9ab441e2bbc0be43c34a77724c3a0b580b733ecdbe89a3e0d03b7
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SHA512
2120419cc750b7222e28c24f70828956ed377275d1ff9a9791911cc5764994572ccc5f7910a1051d8739cf101103648cd0027a752664326dad212e814f4bbebb
Malware Config
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/916-74-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty behavioral1/memory/916-75-0x00000000000A4F6E-mapping.dmp family_stormkitty behavioral1/memory/916-77-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty behavioral1/memory/916-79-0x0000000000090000-0x00000000000AA000-memory.dmp family_stormkitty -
Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\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 2008 set thread context of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 1332 set thread context of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 -
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 value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\Identifier AppLaunch.exe Key opened \REGISTRY\MACHINE\HARDWARE\Description\System\CentralProcessor\0 AppLaunch.exe -
Suspicious behavior: EnumeratesProcesses 6 IoCs
pid Process 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe Token: SeDebugPrivilege 916 AppLaunch.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe -
Suspicious use of WriteProcessMemory 18 IoCs
description pid Process procid_target PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 2008 wrote to memory of 1332 2008 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 28 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 PID 1332 wrote to memory of 916 1332 Halkbank_Ekstre_20210706_142426_2309801.doc.exe 29 -
outlook_office_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe -
outlook_win_path 1 IoCs
description ioc Process Key opened \REGISTRY\USER\S-1-5-21-4084403625-2215941253-1760665084-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676 AppLaunch.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2008 -
C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20210706_142426_2309801.doc.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1332 -
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:916
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