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Analysis
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max time kernel
135s -
max time network
136s -
platform
windows10_x64 -
resource
win10 -
submitted
10/07/2020, 07:14
Static task
static1
Behavioral task
behavioral1
Sample
381b4c883969b4529688d76ea311fd92.exe
Resource
win7
Behavioral task
behavioral2
Sample
381b4c883969b4529688d76ea311fd92.exe
Resource
win10
General
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Target
381b4c883969b4529688d76ea311fd92.exe
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Size
549KB
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MD5
381b4c883969b4529688d76ea311fd92
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SHA1
0b8e2aa53f6dc2308a537995cda967eafeb2d9a5
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SHA256
3a052762219035c320097a6a2c59f3023b69ed8022d1b4cf100aafe3446c9698
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SHA512
f1d541a564c6228aade95e5f653c4df14e78679757cf8923553d47c519896968e3e01cd3f18523e55d1caaf2aefadfac02bd1c6bab572fc39cf1364a8d959f25
Malware Config
Extracted
Protocol: smtp- Host:
mangero.xyz - Port:
587 - Username:
[email protected] - Password:
7213575aceACE@#$
Extracted
agenttesla
Protocol: smtp- Host:
mangero.xyz - 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/4064-1-0x00000000004475BE-mapping.dmp family_agenttesla behavioral2/memory/4064-0-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
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\prince = "C:\\Users\\Admin\\AppData\\Local\\Temp\\prince\\prince.exe" 381b4c883969b4529688d76ea311fd92.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 3676 set thread context of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4064 381b4c883969b4529688d76ea311fd92.exe 4064 381b4c883969b4529688d76ea311fd92.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4064 381b4c883969b4529688d76ea311fd92.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 4064 381b4c883969b4529688d76ea311fd92.exe -
Suspicious use of WriteProcessMemory 8 IoCs
description pid Process procid_target PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67 PID 3676 wrote to memory of 4064 3676 381b4c883969b4529688d76ea311fd92.exe 67
Processes
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C:\Users\Admin\AppData\Local\Temp\381b4c883969b4529688d76ea311fd92.exe"C:\Users\Admin\AppData\Local\Temp\381b4c883969b4529688d76ea311fd92.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:3676 -
C:\Users\Admin\AppData\Local\Temp\381b4c883969b4529688d76ea311fd92.exe"{path}"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4064
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