Analysis
- max time kernel
150s - max time network
150s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
17/05/2024, 03:36
General
- Target 011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc.exe
- Size 389KB
- Sample240517-d51bqsfe41
- SHA256 011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.biotem.com.tr
-
Port
587
-
Username
-
Password
alesta.,alesta.,
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Loads dropped DLL 1 IoCs
- Reads WinSCP keys stored on the system 2 TTPs
Tries to access WinSCP stored sessions.
- 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.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs 2 IoCs
- 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Program Files directory 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc.exe"C:\Users\Admin\AppData\Local\Temp\011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Program Files directory
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc.exe"C:\Users\Admin\AppData\Local\Temp\011caacd4092482d3f605c5381abf6d692fd1e8a4ed6e56f32fac804e68130cc.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
memory/1948-34-0x0000000077E31000-0x0000000077F51000-memory.dmp
memory/1948-40-0x0000000036330000-0x0000000036380000-memory.dmp
memory/1948-43-0x00000000016D0000-0x0000000002686000-memory.dmp
memory/1948-17-0x00000000016D0000-0x0000000002686000-memory.dmp
memory/1948-42-0x0000000036450000-0x000000003645A000-memory.dmp
memory/1948-19-0x0000000077EB8000-0x0000000077EB9000-memory.dmp
memory/1948-20-0x0000000077ED5000-0x0000000077ED6000-memory.dmp
memory/1948-41-0x0000000036390000-0x0000000036422000-memory.dmp
memory/1948-36-0x0000000000470000-0x00000000004B2000-memory.dmp
memory/1948-38-0x0000000035360000-0x00000000353C6000-memory.dmp
memory/1948-33-0x0000000000470000-0x00000000016C4000-memory.dmp
memory/1948-37-0x0000000035500000-0x0000000035AA4000-memory.dmp
memory/4800-35-0x0000000005190000-0x0000000006146000-memory.dmp
memory/4800-15-0x0000000077E31000-0x0000000077F51000-memory.dmp
memory/4800-14-0x0000000005190000-0x0000000006146000-memory.dmp
memory/4800-18-0x0000000005190000-0x0000000006146000-memory.dmp
memory/4800-16-0x0000000010004000-0x0000000010005000-memory.dmp