Analysis
- max time kernel
123s - max time network
178s - platform
windows10-2004_x64 - resource
win10v2004-20231127-en - resource tags
- submitted
01/12/2023, 09:27
General
- Target RFQ_20231201-876678xls.exe
- Size 680KB
- Sample231201-levybsgg3w
- SHA256 1c6dffa90d393fdcc2db9e1cf8af2c557129bb4afadb04d87969ad3edd10ffc3
Malware Config
Extracted
-
Protocol
ftp
-
Host
ftp.dzine.com.tr
-
Port
21
-
Username
dzinecom
-
Password
Dzine21.
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.dzine.com.tr
-
Port
21
-
Username
dzinecom
-
Password
Dzine21.
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 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"C:\Users\Admin\AppData\Local\Temp\RFQ_20231201-876678xls.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
RFQ_20231201-876678xls.exe.log
memory/2464-11-0x0000000000400000-0x0000000000442000-memory.dmp
memory/2464-20-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/2464-19-0x0000000006E60000-0x0000000006EB0000-memory.dmp
memory/2464-18-0x0000000005960000-0x00000000059C6000-memory.dmp
memory/2464-17-0x0000000005B20000-0x0000000005B30000-memory.dmp
memory/2464-16-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/5112-5-0x0000000005210000-0x000000000521A000-memory.dmp
memory/5112-8-0x0000000006400000-0x000000000640A000-memory.dmp
memory/5112-9-0x00000000066F0000-0x000000000676C000-memory.dmp
memory/5112-10-0x0000000009020000-0x00000000090BC000-memory.dmp
memory/5112-7-0x00000000063F0000-0x00000000063F8000-memory.dmp
memory/5112-6-0x0000000005730000-0x0000000005746000-memory.dmp
memory/5112-14-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/5112-15-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/5112-0-0x00000000745A0000-0x0000000074D50000-memory.dmp
memory/5112-4-0x0000000005410000-0x0000000005420000-memory.dmp
memory/5112-3-0x0000000005230000-0x00000000052C2000-memory.dmp
memory/5112-2-0x0000000005740000-0x0000000005CE4000-memory.dmp
memory/5112-1-0x00000000007B0000-0x0000000000860000-memory.dmp