Analysis
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max time kernel
92s -
max time network
139s -
platform
windows10-2004_x64 -
resource
win10v2004-20240802-en -
resource tags
arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system -
submitted
23-09-2024 10:50
Static task
static1
Behavioral task
behavioral1
Sample
Halkbank_Ekstre_20240922_080921_689429.exe
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
Halkbank_Ekstre_20240922_080921_689429.exe
Resource
win10v2004-20240802-en
General
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Target
Halkbank_Ekstre_20240922_080921_689429.exe
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Size
110KB
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MD5
c8cea26640b2fa181571afd43c2e4477
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SHA1
5b9e511450b327634fcc620814ebf42cb57b0c91
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SHA256
261f4e785355cfd784f655fe0fc4a67be3cc18bb09e742b0187cfcc284fa5240
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SHA512
20d9aca79e7034fdd1dbd2b785af17f973c0b9a2ab38dd40338dc0217754d2ea1fd6f00ad9d60bf761dc9d8c135acf32ebd9064facc3e0f3dc9790c3cbd00212
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SSDEEP
1536:Y48kc/9ORkoOQzhSppeT//142G1Fq9uelIA630VDx:8kE9OuDp21DiqAEVDx
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.zqamcx.com - Port:
587 - Username:
[email protected] - Password:
Anambraeast@ - 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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Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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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 17 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3592 set thread context of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 -
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 Halkbank_Ekstre_20240922_080921_689429.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3592 Halkbank_Ekstre_20240922_080921_689429.exe 3592 Halkbank_Ekstre_20240922_080921_689429.exe 3756 RegAsm.exe 3756 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 3592 Halkbank_Ekstre_20240922_080921_689429.exe Token: SeDebugPrivilege 3756 RegAsm.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 3756 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
description pid Process procid_target PID 3592 wrote to memory of 2228 3592 Halkbank_Ekstre_20240922_080921_689429.exe 84 PID 3592 wrote to memory of 2228 3592 Halkbank_Ekstre_20240922_080921_689429.exe 84 PID 3592 wrote to memory of 2228 3592 Halkbank_Ekstre_20240922_080921_689429.exe 84 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85 PID 3592 wrote to memory of 3756 3592 Halkbank_Ekstre_20240922_080921_689429.exe 85
Processes
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C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240922_080921_689429.exe"C:\Users\Admin\AppData\Local\Temp\Halkbank_Ekstre_20240922_080921_689429.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3592 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵PID:2228
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:3756
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