Analysis
- max time kernel
144s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
22/12/2023, 06:56
General
- Target Remittance Advice – Invoice 3429566_PDF.exe
- Size 639KB
- Sample231222-hqcdksdbf5
- SHA256 4cde76ab5dbcd056a0dc49649e7bce6e890f58cd6ba476a0b5f7a4a92d8f685d
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.aranybarany.hu
-
Port
587
-
Username
-
Password
18Szalloda94
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.aranybarany.hu
-
Port
587
-
Username
-
Password
18Szalloda94
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- 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.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 6 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Remittance Advice – Invoice 3429566_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Remittance Advice – Invoice 3429566_PDF.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Remittance Advice – Invoice 3429566_PDF.exe"C:\Users\Admin\AppData\Local\Temp\Remittance Advice – Invoice 3429566_PDF.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Remittance Advice – Invoice 3429566_PDF.exe.log
memory/4500-17-0x0000000005790000-0x00000000057F6000-memory.dmp
memory/4500-19-0x0000000074AB0000-0x0000000075260000-memory.dmp
memory/4500-18-0x0000000006C90000-0x0000000006CE0000-memory.dmp
memory/4500-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/4500-15-0x0000000074AB0000-0x0000000075260000-memory.dmp
memory/4500-16-0x00000000056C0000-0x00000000056D0000-memory.dmp
memory/4840-4-0x0000000005B70000-0x0000000005B80000-memory.dmp
memory/4840-7-0x0000000006B60000-0x0000000006B6A000-memory.dmp
memory/4840-9-0x0000000006BD0000-0x0000000006C4A000-memory.dmp
memory/4840-14-0x0000000074AB0000-0x0000000075260000-memory.dmp
memory/4840-8-0x0000000006B70000-0x0000000006B7E000-memory.dmp
memory/4840-6-0x0000000005D30000-0x0000000005D44000-memory.dmp
memory/4840-5-0x0000000005990000-0x000000000599A000-memory.dmp
memory/4840-1-0x0000000000F00000-0x0000000000FA6000-memory.dmp
memory/4840-3-0x00000000059E0000-0x0000000005A72000-memory.dmp
memory/4840-10-0x0000000009360000-0x00000000093FC000-memory.dmp
memory/4840-2-0x0000000005F90000-0x0000000006534000-memory.dmp
memory/4840-0-0x0000000074AB0000-0x0000000075260000-memory.dmp