Analysis
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max time kernel
113s -
max time network
118s -
platform
windows7_x64 -
resource
win7 -
submitted
17/07/2020, 15:50
Static task
static1
Behavioral task
behavioral1
Sample
544755300977.exe
Resource
win7
Behavioral task
behavioral2
Sample
544755300977.exe
Resource
win10v200430
General
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Target
544755300977.exe
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Size
890KB
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MD5
43a4ff5752ddee3df016f2eb38ed8874
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SHA1
1d12ed5721f87d69c0f6f3e102d59b48605e8a7c
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SHA256
53aea080cd433c61d90184c531d36de3d0f82649579997dce665f8f3f80039dc
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SHA512
05f410f08d049ad24a7165074d6fc9aa0d479ad2d5e04cda6569d761f21ae81ef30ca24b2eb4aca9afeb1ed76fabafc6c464103c5587102c58c53fc5e87e3962
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
smtp.yandex.ru - Port:
587 - Username:
[email protected] - Password:
08140480968Ju@
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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AgentTesla Payload 4 IoCs
resource yara_rule behavioral1/memory/1512-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1512-3-0x00000000004473FE-mapping.dmp family_agenttesla behavioral1/memory/1512-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1512-5-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
description ioc Process File opened for modification C:\Windows\system32\drivers\etc\hosts 544755300977.exe -
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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Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 1164 set thread context of 1512 1164 544755300977.exe 24 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 1512 544755300977.exe 1512 544755300977.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1512 544755300977.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 1512 544755300977.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24 PID 1164 wrote to memory of 1512 1164 544755300977.exe 24
Processes
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C:\Users\Admin\AppData\Local\Temp\544755300977.exe"C:\Users\Admin\AppData\Local\Temp\544755300977.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1164 -
C:\Users\Admin\AppData\Local\Temp\544755300977.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:1512
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