Analysis
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max time kernel
144s -
max time network
25s -
platform
windows7_x64 -
resource
win7v200430 -
submitted
09-07-2020 07:31
Static task
static1
Behavioral task
behavioral1
Sample
PO090720.exe
Resource
win7v200430
Behavioral task
behavioral2
Sample
PO090720.exe
Resource
win10
General
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Target
PO090720.exe
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Size
561KB
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MD5
e3dc6af740db619de8c9f0af0fec145f
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SHA1
ca6e645af9f9bbee4bd2dc98814c5ef7a4ed716d
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SHA256
7f5082ea80243bb25ddcddc3289e2f973e858bb53716a75318bfc4848cfdccd7
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SHA512
cc1265b888d9f75708a7cdc0088fa662b1a46bfd076e4be0b5d5bfbb641c4e843e940612e1dff6d4d08e4b48d85ffc21dd7f84f0071988b4c20ba6e2b3dfff73
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
[email protected] - Password:
mmm777
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
Processes:
resource yara_rule behavioral1/memory/1896-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1896-3-0x00000000004474CE-mapping.dmp family_agenttesla behavioral1/memory/1896-4-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral1/memory/1896-5-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla -
Drops file in Drivers directory 1 IoCs
Processes:
PO090720.exedescription ioc process File opened for modification C:\Windows\system32\drivers\etc\hosts PO090720.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
Processes:
PO090720.exedescription pid process target process PID 240 set thread context of 1896 240 PO090720.exe PO090720.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
PO090720.exepid process 1896 PO090720.exe 1896 PO090720.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
PO090720.exedescription pid process Token: SeDebugPrivilege 1896 PO090720.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO090720.exepid process 1896 PO090720.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
PO090720.exedescription pid process target process PID 240 wrote to memory of 1856 240 PO090720.exe schtasks.exe PID 240 wrote to memory of 1856 240 PO090720.exe schtasks.exe PID 240 wrote to memory of 1856 240 PO090720.exe schtasks.exe PID 240 wrote to memory of 1856 240 PO090720.exe schtasks.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe PID 240 wrote to memory of 1896 240 PO090720.exe PO090720.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\PO090720.exe"C:\Users\Admin\AppData\Local\Temp\PO090720.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HrOQxgepk" /XML "C:\Users\Admin\AppData\Local\Temp\tmp5456.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO090720.exe"{path}"2⤵
- Drops file in Drivers directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Temp\tmp5456.tmpMD5
d54797639cead93f57b579a96e0e38a8
SHA18731a568fc60ee61813372da7fd8ba6321a4c933
SHA25685e99bd7aaa593d1a9f50e0702b866b90f56678e332d91fd351c77321b833e17
SHA512e3cd5d1f51f3134cd52bfe4adca99402f3272c7755537e5add2fb135aa8cafa8255955109737ef9cd6ca2dfd039647ccd3658db8480e4ebd4359c2b3e8fd1631
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memory/1856-0-0x0000000000000000-mapping.dmp
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memory/1896-2-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1896-3-0x00000000004474CE-mapping.dmp
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memory/1896-4-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/1896-5-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB