Analysis
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max time kernel
93s -
max time network
118s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
15-05-2024 11:20
Static task
static1
Behavioral task
behavioral1
Sample
Copy#1905208.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Copy#1905208.exe
Resource
win10v2004-20240508-en
General
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Target
Copy#1905208.exe
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Size
248KB
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MD5
cfc42af0e543bd98292e43f0fdde7d3d
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SHA1
b42e951c4524f3623f548d58273cbf2b25689051
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SHA256
bd5082c530583be11d7a2099791bad33b2e25b90192866c2a7b234bfb8ae5b6a
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SHA512
8de650b8bfc930f8601ae741d398b317f07336fc8ab03902c2a9e55e4a1c034ac89a89b1c93441b602380b3fbf828dbf1e116731efb62dd5e8124003c6a9b400
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SSDEEP
3072:29Vc1dPKL/2XCNnCDDRvLGyrOAOkGt6+duWA/t/SHUebbxCbGgKk12qk/SPYm21S:29VcCaX+stvLGxOLbMUsK64H
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
66.29.151.236 - Port:
587 - Username:
[email protected] - Password:
d9GOyTceXsMT - 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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Detect ZGRat V1 34 IoCs
resource yara_rule behavioral2/memory/2016-3-0x0000000006EC0000-0x00000000070F0000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-9-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-31-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-37-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-39-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-35-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-33-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-29-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-25-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-23-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-21-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-27-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-17-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-15-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-13-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-11-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-19-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-7-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-6-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-51-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-49-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-43-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-59-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-67-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-63-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-57-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-55-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-53-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-47-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-46-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-69-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-65-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-41-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 behavioral2/memory/2016-61-0x0000000006EC0000-0x00000000070E9000-memory.dmp family_zgrat_v1 -
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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Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\savef = "C:\\Users\\Admin\\AppData\\Roaming\\savef.exe" Copy#1905208.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 37 ip-api.com 35 api.ipify.org 36 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 2016 set thread context of 3456 2016 Copy#1905208.exe 90 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 3456 RegAsm.exe 3456 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 2016 Copy#1905208.exe Token: SeDebugPrivilege 2016 Copy#1905208.exe Token: SeDebugPrivilege 3456 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90 PID 2016 wrote to memory of 3456 2016 Copy#1905208.exe 90
Processes
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C:\Users\Admin\AppData\Local\Temp\Copy#1905208.exe"C:\Users\Admin\AppData\Local\Temp\Copy#1905208.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2016 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:3456
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