Analysis
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max time kernel
121s -
max time network
122s -
platform
windows7_x64 -
resource
win7-20240903-en -
resource tags
arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system -
submitted
23-09-2024 05:58
Static task
static1
Behavioral task
behavioral1
Sample
Halk Bank.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Halk Bank.exe
Resource
win10v2004-20240802-en
General
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Target
Halk Bank.exe
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Size
1.1MB
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MD5
9d89bf38f44abe7199f4b7e34cebc254
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SHA1
eb48fb2f074aae30481beac7867794eb62cc383e
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SHA256
516b4492c4c76ba5d22f4e3867184816033a72712f7348f3d00d7903533fd7a3
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SHA512
345ac5d5b303253a2b42a366b9ece2fd0d5617bb6bd6b8cc4e26d4b9ffb5768d048c46723f35e0cd8dcd2bde3832245f515636b3d3b638aeba76d4332f743ddf
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SSDEEP
24576:uRmJkcoQricOIQxiZY1iaCkGI07jkbxayssxXQo60Hr8L1:7JZoQrbTFZY1iaCBvnGLmh
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.laboratoriosvilla.com.mx - Port:
587 - Username:
[email protected] - Password:
WZ,2pliw#L)D - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-1488793075-819845221-1497111674-1000\Software\Microsoft\Windows\CurrentVersion\Run\KaGeys = "C:\\Users\\Admin\\AppData\\Roaming\\KaGeys\\KaGeys.exe" RegSvcs.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 4 api.ipify.org 5 api.ipify.org 6 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2112 set thread context of 2376 2112 Halk Bank.exe 31 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language Halk Bank.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2376 RegSvcs.exe 2376 RegSvcs.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 2112 Halk Bank.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2376 RegSvcs.exe -
Suspicious use of FindShellTrayWindow 6 IoCs
pid Process 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe -
Suspicious use of SendNotifyMessage 6 IoCs
pid Process 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe 2112 Halk Bank.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31 PID 2112 wrote to memory of 2376 2112 Halk Bank.exe 31
Processes
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C:\Users\Admin\AppData\Local\Temp\Halk Bank.exe"C:\Users\Admin\AppData\Local\Temp\Halk Bank.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:2112 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Users\Admin\AppData\Local\Temp\Halk Bank.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2376
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