Analysis
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max time kernel
93s -
max time network
96s -
platform
windows10_x64 -
resource
win10 -
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
Protocol: smtp- Host:
mail.privateemail.com - Port:
587 - Username:
[email protected] - Password:
mmm777
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 2 IoCs
Processes:
resource yara_rule behavioral2/memory/3496-2-0x0000000000400000-0x000000000044C000-memory.dmp family_agenttesla behavioral2/memory/3496-3-0x00000000004474CE-mapping.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 3020 set thread context of 3496 3020 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 7 IoCs
Processes:
PO090720.exePO090720.exepid process 3020 PO090720.exe 3020 PO090720.exe 3020 PO090720.exe 3020 PO090720.exe 3020 PO090720.exe 3496 PO090720.exe 3496 PO090720.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
PO090720.exePO090720.exedescription pid process Token: SeDebugPrivilege 3020 PO090720.exe Token: SeDebugPrivilege 3496 PO090720.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
PO090720.exepid process 3496 PO090720.exe -
Suspicious use of WriteProcessMemory 17 IoCs
Processes:
PO090720.exedescription pid process target process PID 3020 wrote to memory of 3612 3020 PO090720.exe schtasks.exe PID 3020 wrote to memory of 3612 3020 PO090720.exe schtasks.exe PID 3020 wrote to memory of 3612 3020 PO090720.exe schtasks.exe PID 3020 wrote to memory of 608 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 608 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 608 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 492 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 492 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 492 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 PO090720.exe PO090720.exe PID 3020 wrote to memory of 3496 3020 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 behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- 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\tmp99CA.tmp"2⤵
- Creates scheduled task(s)
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C:\Users\Admin\AppData\Local\Temp\PO090720.exe"{path}"2⤵
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C:\Users\Admin\AppData\Local\Temp\PO090720.exe"{path}"2⤵
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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\tmp99CA.tmpMD5
eb1a159acd9eaf614f869f8e792aba34
SHA124e390b793d90d606ec27fc670167f50352c7797
SHA256ce03142e9ed0fa4e8c5b8c128950b88b281b123e4ae1a6e0cd0a62d15d7f9104
SHA5121d439037665e1f0d84811840f4afdefe33395e69b02940e86b7518f9e1aecdefa286566fbd91f4cb88209ea43c9867d6d0c2a7bd59c44334a5fa130f355d5105
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memory/3496-2-0x0000000000400000-0x000000000044C000-memory.dmpFilesize
304KB
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memory/3496-3-0x00000000004474CE-mapping.dmp
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memory/3612-0-0x0000000000000000-mapping.dmp