Analysis
- max time kernel
117s - max time network
151s - platform
windows7_x64 - resource
win7-20230712-en - resource tags
- submitted
18/07/2023, 12:49
General
- Target IB_23071847557_attachment.exe
- Size 694KB
- Sample230718-p2cbaaac87
- SHA256 ea14e71e40ef5c0214b407a983fc0c540ccccbbde1a8479c55adabe286469589
Malware Config
Extracted
-
snakekeylogger
-
Protocol
smtp
-
Host
mail.keresa.com.my
-
Port
587
-
Username
-
Password
Keresa123+-
-
Email to
Signatures
- Snake Keylogger
Keylogger and Infostealer first seen in November 2020.
- Snake Keylogger payload 1 IoCs
- 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
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 8 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\IB_23071847557_attachment.exe"C:\Users\Admin\AppData\Local\Temp\IB_23071847557_attachment.exe"1⤵
- Accesses Microsoft Outlook profiles
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\NzqecVt.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
-
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NzqecVt" /XML "C:\Users\Admin\AppData\Local\Temp\tmp3DAC.tmp"2⤵
- Creates scheduled task(s)
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
tmp3DAC.tmp
memory/2220-58-0x0000000073D30000-0x000000007441E000-memory.dmp
memory/2220-55-0x0000000073D30000-0x000000007441E000-memory.dmp
memory/2220-57-0x0000000000560000-0x000000000056C000-memory.dmp
memory/2220-54-0x0000000000B10000-0x0000000000BC4000-memory.dmp
memory/2220-59-0x0000000004F50000-0x0000000004F90000-memory.dmp
memory/2220-60-0x0000000000570000-0x000000000057A000-memory.dmp
memory/2220-56-0x0000000004F50000-0x0000000004F90000-memory.dmp
memory/2220-69-0x0000000000340000-0x0000000000366000-memory.dmp
memory/2220-61-0x0000000005170000-0x00000000051D0000-memory.dmp
memory/2940-70-0x000000006E2E0000-0x000000006E88B000-memory.dmp
memory/2940-71-0x000000006E2E0000-0x000000006E88B000-memory.dmp
memory/2940-72-0x00000000026F0000-0x0000000002730000-memory.dmp
memory/2940-73-0x00000000026F0000-0x0000000002730000-memory.dmp
memory/2940-74-0x00000000026F0000-0x0000000002730000-memory.dmp
memory/2940-75-0x000000006E2E0000-0x000000006E88B000-memory.dmp