Analysis
- max time kernel
141s - max time network
132s - platform
windows10-2004_x64 - resource
win10v2004-en-20220113 - submitted
16/02/2022, 09:52
General
- Target 33c6d26d055d4ee3d1e49b678df6dc18.exe
- Size 802KB
- Sample220216-lv3m4sbee7
- SHA256 1ee1579cdd94bc455e3918be20b3661e2d741f139af85baff2020fee6b69ce99
Malware Config
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
odin.mk-host.com
-
Port
587
-
Username
-
Password
Hotel2020#
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- AgentTesla Payload 1 IoCs
- Executes dropped EXE 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
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 8 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious use of AdjustPrivilegeToken 64 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\33c6d26d055d4ee3d1e49b678df6dc18.exe"C:\Users\Admin\AppData\Local\Temp\33c6d26d055d4ee3d1e49b678df6dc18.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"C:\Users\Admin\AppData\Local\Temp\InstallUtil.exe"2⤵
- Executes dropped EXE
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
-
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exeC:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding1⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
memory/2584-137-0x00000160C3B20000-0x00000160C3B30000-memory.dmp
memory/2584-139-0x00000160C6230000-0x00000160C6234000-memory.dmp
memory/2584-138-0x00000160C3B80000-0x00000160C3B90000-memory.dmp
memory/3464-140-0x0000000005E61000-0x0000000005E62000-memory.dmp
memory/3464-131-0x0000000006100000-0x00000000066A4000-memory.dmp
memory/3464-135-0x0000000005E60000-0x0000000005E61000-memory.dmp
memory/3464-134-0x000000007511E000-0x000000007511F000-memory.dmp
memory/3464-133-0x0000000005BF0000-0x0000000005C8C000-memory.dmp
memory/3464-130-0x0000000000FC0000-0x000000000108E000-memory.dmp
memory/3464-141-0x0000000008890000-0x00000000088B2000-memory.dmp
memory/3464-136-0x0000000005B80000-0x0000000005B8A000-memory.dmp
memory/3464-132-0x0000000005A20000-0x0000000005AB2000-memory.dmp
memory/3680-142-0x0000000000400000-0x000000000043C000-memory.dmp
memory/3680-146-0x0000000005150000-0x0000000005151000-memory.dmp
memory/3680-145-0x000000007511E000-0x000000007511F000-memory.dmp
memory/3680-147-0x0000000006010000-0x0000000006076000-memory.dmp
memory/3680-148-0x00000000065D0000-0x0000000006620000-memory.dmp
memory/3680-149-0x0000000005151000-0x0000000005152000-memory.dmp