Analysis
- max time kernel
83s - max time network
142s - platform
windows10-2004_x64 - resource
win10v2004-20220721-en - resource tags
- submitted
22/07/2022, 07:18
General
- Target SHIPMENT DETAILS.exe
- Size 611KB
- Sample220722-h4yhzadeb4
- SHA256 826e2330ffab2ee9cf4c87e234c3abbfd9fadbd4db5769778f28ffbd8a0e18fe
Malware Config
Extracted
-
Protocol
smtp
-
Host
mail.hindusthan.com
-
Port
587
-
Username
-
Password
f1o2m3
Extracted
-
agenttesla
-
Protocol
smtp
-
Host
mail.hindusthan.com
-
Port
587
-
Username
-
Password
f1o2m3
-
Email to
Signatures
- AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
- suricata: ET MALWARE AgentTesla Exfil Via SMTP
suricata: ET MALWARE AgentTesla Exfil Via SMTP
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- 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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 2 IoCs
- Suspicious use of WriteProcessMemory 11 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SHIPMENT DETAILS.exe"C:\Users\Admin\AppData\Local\Temp\SHIPMENT DETAILS.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NpRDBy" /XML "C:\Users\Admin\AppData\Local\Temp\tmpEFA4.tmp"2⤵
- Creates scheduled task(s)
-
-
C:\Users\Admin\AppData\Local\Temp\SHIPMENT DETAILS.exe"{path}"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
SHIPMENT DETAILS.exe.log
tmpEFA4.tmp
memory/3348-138-0x0000000000400000-0x000000000043A000-memory.dmp
memory/3348-140-0x0000000006500000-0x0000000006566000-memory.dmp
memory/3348-141-0x0000000006B30000-0x0000000006B80000-memory.dmp
memory/4832-130-0x0000000000900000-0x000000000099E000-memory.dmp
memory/4832-131-0x00000000058E0000-0x0000000005E84000-memory.dmp
memory/4832-132-0x0000000005330000-0x00000000053C2000-memory.dmp
memory/4832-133-0x0000000005470000-0x000000000550C000-memory.dmp
memory/4832-134-0x00000000053E0000-0x00000000053EA000-memory.dmp