Analysis
- max time kernel
143s - max time network
133s - platform
windows10-2004_x64 - resource
win10v2004-20240426-en - resource tags
- submitted
18/05/2024, 08:21
General
- Target c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af.exe
- Size 362KB
- Sample240518-j9hkdabe51
- SHA256 c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
cp8nl.hyperhost.ua
-
Port
587
-
Username
-
Password
7213575aceACE@#
-
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
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 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\c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af.exe"C:\Users\Admin\AppData\Local\Temp\c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af.exe"1⤵
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af.exe"C:\Users\Admin\AppData\Local\Temp\c52c6d6ea2de4840848a63dca6946a7242d7a2c5f918afe41f271c6aecf3a0af.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/1308-26-0x0000000004F70000-0x00000000077DC000-memory.dmp
memory/1308-9-0x0000000004F70000-0x00000000077DC000-memory.dmp
memory/1308-10-0x0000000077A21000-0x0000000077B41000-memory.dmp
memory/1308-11-0x0000000010004000-0x0000000010005000-memory.dmp
memory/1308-30-0x0000000004F70000-0x00000000077DC000-memory.dmp
memory/2396-28-0x0000000000490000-0x00000000004D0000-memory.dmp
memory/2396-27-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/2396-25-0x0000000000490000-0x00000000016E4000-memory.dmp
memory/2396-29-0x0000000036DE0000-0x0000000037384000-memory.dmp
memory/2396-31-0x0000000037390000-0x00000000373F6000-memory.dmp
memory/2396-12-0x00000000016F0000-0x0000000003F5C000-memory.dmp
memory/2396-32-0x00000000376F0000-0x0000000037740000-memory.dmp
memory/2396-33-0x0000000037740000-0x00000000377D2000-memory.dmp
memory/2396-34-0x0000000037830000-0x000000003783A000-memory.dmp
memory/2396-36-0x00000000016F0000-0x0000000003F5C000-memory.dmp