Analysis
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max time kernel
529s -
max time network
539s -
platform
windows10-2004_x64 -
resource
win10v2004-20240508-en -
resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system -
submitted
18-06-2024 15:04
Static task
static1
Behavioral task
behavioral1
Sample
payload.exe
Resource
win7-20240611-en
Behavioral task
behavioral2
Sample
payload.exe
Resource
win10v2004-20240508-en
General
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Target
payload.exe
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Size
4.4MB
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MD5
f91187d775ecc8afabe3f7465adbbd02
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SHA1
f4afb037f36c977ea8d267dde3d88720d2c460ed
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SHA256
ee7e36e4f460751432305467cb11d85ff90591a59223a5d7da3a33144b02a6c4
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SHA512
7ccdccbe4c7cec79a9945ad99f1451a5d3d2e478e1945ffe9e6d25a849b0bc5bd7fff7298f5d7afa12a607385e09369e5dd1ed5f3991e24e57dfb59d211a89d7
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SSDEEP
24576:sCCxWH4DJMT9QRjQRRIGWiMPik0zdbDQjdgPGH0v4rkY2YQb+1ihA6vYnzVvmi2Z:
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.keeptraveling-eg.com - Port:
587 - Username:
[email protected] - Password:
Do76#Zbbdonia - 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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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
Processes:
payload.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-1337824034-2731376981-3755436523-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Gcfbzna = "C:\\Users\\Admin\\AppData\\Roaming\\Gcfbzna.bat" payload.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.
Processes:
flow ioc 6 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
payload.exedescription pid process target process PID 1416 set thread context of 2896 1416 payload.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
RegAsm.exepid process 2896 RegAsm.exe 2896 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 3 IoCs
Processes:
payload.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 1416 payload.exe Token: SeDebugPrivilege 1416 payload.exe Token: SeDebugPrivilege 2896 RegAsm.exe -
Suspicious use of WriteProcessMemory 8 IoCs
Processes:
payload.exedescription pid process target process PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe PID 1416 wrote to memory of 2896 1416 payload.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\payload.exe"C:\Users\Admin\AppData\Local\Temp\payload.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1416 -
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:2896
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