Analysis
- max time kernel
147s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20241007-en - resource tags
- submitted
06/11/2024, 03:59
General
- Target Shipping documents.exe
- Size 1.4MB
- Sample241106-ej95gswqhj
- SHA256 669bfc59550b87a86c5e87d33da3e63be15f8712184a6aa176e0021b8c65df1e
Malware Config
Extracted
-
agenttesla
-
Protocol
ftp
-
Host
ftp://ftp.concaribe.com
-
Port
21
-
Username
-
Password
ro}UWgz#!38E
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Agenttesla family
- Guloader family
- 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 3 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- System Location Discovery: System Language Discovery 1 TTPs 2 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs
Adversaries may check for Internet connectivity on compromised systems.
- 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\Shipping documents.exe"C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe"C:\Users\Admin\AppData\Local\Temp\Shipping documents.exe"2⤵
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- System Network Configuration Discovery: Internet Connection Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Credential Access
Credentials from Password Stores
1Credentials from Web Browsers
1Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
memory/516-24-0x0000000004A20000-0x0000000005BAE000-memory.dmp
memory/516-25-0x0000000077E41000-0x0000000077F61000-memory.dmp
memory/516-26-0x0000000010004000-0x0000000010005000-memory.dmp
memory/516-27-0x0000000004A20000-0x0000000005BAE000-memory.dmp
memory/2876-28-0x0000000001700000-0x000000000288E000-memory.dmp
memory/2876-29-0x0000000077EC8000-0x0000000077EC9000-memory.dmp
memory/2876-30-0x0000000077EE5000-0x0000000077EE6000-memory.dmp
memory/2876-31-0x00000000004A0000-0x00000000016F4000-memory.dmp
memory/2876-32-0x0000000077E41000-0x0000000077F61000-memory.dmp
memory/2876-33-0x00000000004A0000-0x00000000004E2000-memory.dmp
memory/2876-34-0x00000000351E0000-0x0000000035784000-memory.dmp
memory/2876-35-0x0000000032E10000-0x0000000032E76000-memory.dmp
memory/2876-36-0x0000000001700000-0x000000000288E000-memory.dmp
memory/2876-37-0x00000000360E0000-0x0000000036130000-memory.dmp
memory/2876-38-0x0000000036130000-0x00000000361C2000-memory.dmp
memory/2876-39-0x0000000036200000-0x000000003620A000-memory.dmp