Analysis
- max time kernel
143s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-20230621-en - resource tags
- submitted
03/07/2023, 09:50
General
- Target PO#P18620782 201901.exe
- Size 265KB
- Sample230703-lt2dnahb8v
- SHA256 b01a47e877d579c2137f3e3609d29cba61302f1c8fe8d3ee0bdd9450033d6cb5
Malware Config
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- Loads dropped DLL 1 IoCs
- 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.
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Drops file in System32 directory 8 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\PO#P18620782 201901.exe"C:\Users\Admin\AppData\Local\Temp\PO#P18620782 201901.exe"1⤵
- Loads dropped DLL
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\PO#P18620782 201901.exe"C:\Users\Admin\AppData\Local\Temp\PO#P18620782 201901.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
C:\Windows\System32\svchost.exeC:\Windows\System32\svchost.exe -k netsvcs -p1⤵
- Drops file in System32 directory
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
uqthjmhko.dll
memory/4184-139-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4184-140-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4184-141-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4184-142-0x0000000004C20000-0x00000000051C4000-memory.dmp
memory/4184-143-0x0000000000400000-0x0000000000441000-memory.dmp
memory/4184-144-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-145-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-146-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-147-0x0000000004A30000-0x0000000004A96000-memory.dmp
memory/4184-148-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-149-0x0000000005870000-0x0000000005902000-memory.dmp
memory/4184-150-0x0000000005B60000-0x0000000005B6A000-memory.dmp
memory/4184-151-0x0000000005AE0000-0x0000000005B30000-memory.dmp
memory/4184-152-0x0000000005B70000-0x0000000005D32000-memory.dmp
memory/4184-154-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-155-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-156-0x0000000004C10000-0x0000000004C20000-memory.dmp
memory/4184-157-0x0000000004C10000-0x0000000004C20000-memory.dmp