Analysis
- max time kernel
104s - max time network
113s - platform
windows10_x64 - resource
win10 - submitted
20/10/2020, 08:26
General
- Target Bank Receipt.exe
- Size 697KB
- Sample201020-q4a5jas42e
- SHA256 82111ffe99296ab2292bfc56a031ae1daf701520ead377ee34e4a72f31c75285
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
smtp.incolab-ro.com
-
Port
587
-
Username
-
Password
w@2EA{xjgr4}
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 2 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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 12 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: RenamesItself 1 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Bank Receipt.exe"C:\Users\Admin\AppData\Local\Temp\Bank Receipt.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\timeout.exetimeout2⤵
- Delays execution with timeout.exe
-
-
C:\Users\Admin\AppData\Local\Temp\Bank Receipt.exe"C:\Users\Admin\AppData\Local\Temp\Bank Receipt.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: RenamesItself
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2212 -s 17122⤵
- Program crash
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1900-8-0x0000000073B10000-0x00000000741FE000-memory.dmp
memory/1900-17-0x0000000001410000-0x0000000001411000-memory.dmp
memory/1900-16-0x0000000006580000-0x0000000006581000-memory.dmp
memory/1900-15-0x0000000006120000-0x0000000006121000-memory.dmp
memory/1900-14-0x0000000005970000-0x0000000005971000-memory.dmp
memory/1900-6-0x0000000000400000-0x000000000046A000-memory.dmp
memory/2212-3-0x0000000005CB0000-0x0000000005CB1000-memory.dmp
memory/2212-5-0x00000000066A0000-0x0000000006714000-memory.dmp
memory/2212-0-0x0000000073B10000-0x00000000741FE000-memory.dmp
memory/2212-2-0x0000000005710000-0x0000000005711000-memory.dmp
memory/2212-1-0x0000000000E10000-0x0000000000E11000-memory.dmp
memory/2448-13-0x0000000004B00000-0x0000000004B01000-memory.dmp