Analysis
- max time kernel
90s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220414-en - submitted
20/05/2022, 14:10
General
- Target NEW ORDER.pdf.exe
- Size 646KB
- Sample220520-rgw63afff3
- SHA256 ed7fa775e6484fee75934743e821a3a050e35831a0574685fb124a3e4766a85a
Malware Config
Extracted
-
matiex
-
https://api.telegram.org/bot1361411551:AAEXdgrDr6ha4cqLOl8OniveGLUmuvmAAbU/sendMessage?chat_id=1342486330
Signatures
- Matiex
Matiex is a keylogger and infostealer first seen in July 2020.
- Matiex Main Payload 2 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 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 1 IoCs
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\NEW ORDER.pdf.exe"C:\Users\Admin\AppData\Local\Temp\NEW ORDER.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\NEW ORDER.pdf.exe"C:\Users\Admin\AppData\Local\Temp\NEW ORDER.pdf.exe"2⤵
- Accesses Microsoft Outlook profiles
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4256 -s 20403⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 4256 -ip 42561⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2076-132-0x0000000000400000-0x00000000004A7000-memory.dmp
memory/4256-131-0x0000000000A40000-0x0000000000AB0000-memory.dmp
memory/4256-133-0x0000000000A40000-0x0000000000AB0000-memory.dmp
memory/4256-134-0x0000000004B70000-0x0000000004C0C000-memory.dmp
memory/4256-135-0x0000000004C30000-0x00000000051D4000-memory.dmp
memory/4256-136-0x0000000005280000-0x00000000052E6000-memory.dmp
memory/4256-137-0x00000000062D0000-0x0000000006492000-memory.dmp