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200815-rbfm23ztw210Analysis
- max time kernel
119s - max time network
123s - platform
windows10_x64 - resource
win10 - submitted
15/08/2020, 06:09
General
- Target RFQ ICT-200068-MKE-AL ESTISHARI_pdf.exe
- Size 603KB
- Sample200815-rbfm23ztw2
- SHA256 3ac8a6bb8e3551f1889bcdbe567d78c4d1afd90f91904d5bbaffc6879abbb37a
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.specialmetal.ir
-
Port
587
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Username
-
Password
02188985257
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 3 IoCs
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Adds Run key to start application 2 TTPs 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ ICT-200068-MKE-AL ESTISHARI_pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ ICT-200068-MKE-AL ESTISHARI_pdf.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\FhDgCxwjwYe" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC5DB.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\RFQ ICT-200068-MKE-AL ESTISHARI_pdf.exe"C:\Users\Admin\AppData\Local\Temp\RFQ ICT-200068-MKE-AL ESTISHARI_pdf.exe"2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2460-9-0x0000000007D00000-0x0000000007D6C000-memory.dmp
memory/2460-1-0x0000000000B30000-0x0000000000B31000-memory.dmp
memory/2460-4-0x0000000005970000-0x0000000005971000-memory.dmp
memory/2460-5-0x0000000005510000-0x0000000005511000-memory.dmp
memory/2460-6-0x0000000005480000-0x0000000005481000-memory.dmp
memory/2460-7-0x0000000005700000-0x0000000005701000-memory.dmp
memory/2460-3-0x00000000053D0000-0x00000000053D1000-memory.dmp
memory/2460-8-0x00000000056E0000-0x00000000056EB000-memory.dmp
memory/2460-10-0x0000000007D80000-0x0000000007DD6000-memory.dmp
memory/2460-0-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/3380-13-0x0000000000400000-0x000000000045A000-memory.dmp
memory/3380-15-0x0000000073870000-0x0000000073F5E000-memory.dmp
memory/3380-20-0x00000000059D0000-0x00000000059D1000-memory.dmp
memory/3380-21-0x00000000065B0000-0x00000000065B1000-memory.dmp