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Analysis
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max time kernel
74s -
max time network
110s -
platform
windows10_x64 -
resource
win10 -
submitted
07/07/2020, 17:31
Static task
static1
Behavioral task
behavioral1
Sample
da923f9279e5f459a7ead461348ece13.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
da923f9279e5f459a7ead461348ece13.exe
Resource
win10
General
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Target
da923f9279e5f459a7ead461348ece13.exe
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Size
788KB
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MD5
da923f9279e5f459a7ead461348ece13
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SHA1
acd563b371c4f7ce408e0cc6c4f651ddbf85b5e5
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SHA256
baf78d7d37a291a902e840a51bb6e30e550abed130549d92697636e18f36e0d6
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SHA512
b45bf47d51d02cfce953926405c18b09bc32e2d1a7716fbb7d24275e28ea0ca170328b1737316267814d8f6c66191a8b16ef5568d51fd7da22484b2f59284b93
Malware Config
Extracted
Protocol: smtp- Host:
dutchlogs.us - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@#$%
Extracted
agenttesla
Protocol: smtp- Host:
dutchlogs.us - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@#$%
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 2 IoCs
resource yara_rule behavioral2/memory/2336-3-0x0000000000400000-0x00000000004A4000-memory.dmp family_agenttesla behavioral2/memory/2336-4-0x00000000021A0000-0x00000000021EC000-memory.dmp family_agenttesla -
resource yara_rule behavioral2/memory/2336-0-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral2/memory/2336-2-0x0000000000400000-0x00000000004A4000-memory.dmp upx behavioral2/memory/2336-3-0x0000000000400000-0x00000000004A4000-memory.dmp upx -
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-1-5-21-2066881839-3229799743-3576549721-1000\Software\Microsoft\Windows\CurrentVersion\Run\lagguy = "C:\\Users\\Admin\\AppData\\Local\\Temp\\lagguy\\lagguy.exe" da923f9279e5f459a7ead461348ece13.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3700 set thread context of 2336 3700 da923f9279e5f459a7ead461348ece13.exe 67 -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 3700 da923f9279e5f459a7ead461348ece13.exe 3700 da923f9279e5f459a7ead461348ece13.exe 2336 da923f9279e5f459a7ead461348ece13.exe 2336 da923f9279e5f459a7ead461348ece13.exe -
Suspicious behavior: MapViewOfSection 1 IoCs
pid Process 3700 da923f9279e5f459a7ead461348ece13.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2336 da923f9279e5f459a7ead461348ece13.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3700 wrote to memory of 2336 3700 da923f9279e5f459a7ead461348ece13.exe 67 PID 3700 wrote to memory of 2336 3700 da923f9279e5f459a7ead461348ece13.exe 67 PID 3700 wrote to memory of 2336 3700 da923f9279e5f459a7ead461348ece13.exe 67
Processes
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C:\Users\Admin\AppData\Local\Temp\da923f9279e5f459a7ead461348ece13.exe"C:\Users\Admin\AppData\Local\Temp\da923f9279e5f459a7ead461348ece13.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
PID:3700 -
C:\Users\Admin\AppData\Local\Temp\da923f9279e5f459a7ead461348ece13.exe"C:\Users\Admin\AppData\Local\Temp\da923f9279e5f459a7ead461348ece13.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2336
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