Analysis
- max time kernel
55s - max time network
32s - platform
windows7_x64 - resource
win7 - submitted
21/07/2020, 06:40
General
- Target Swift copy_pdf.exe
- Size 765KB
- Sample200721-tbbjcnsp2x
- SHA256 6737a73c3d70c5df327bbba6c8eb3769f6da5bf8e90a87a1e3a4c2de29b5408a
Malware Config
Signatures
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- UPX packed file 3 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Swift copy_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Swift copy_pdf.exe"1⤵
- Suspicious behavior: MapViewOfSection
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Swift copy_pdf.exe"C:\Users\Admin\AppData\Local\Temp\Swift copy_pdf.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1700-0-0x0000000000400000-0x00000000004A4000-memory.dmp
memory/1700-2-0x0000000000400000-0x00000000004A4000-memory.dmp
memory/1700-3-0x0000000000400000-0x00000000004A4000-memory.dmp
memory/1700-4-0x00000000002C0000-0x000000000030C000-memory.dmp
memory/1700-5-0x0000000001F12000-0x0000000001F13000-memory.dmp
memory/1700-6-0x0000000000220000-0x0000000000266000-memory.dmp