Analysis
- max time kernel
155s - max time network
163s - platform
windows7_x64 - resource
win7-en-20211208 - submitted
19/02/2022, 16:09
General
- Target SecuriteInfo.com.W32.AIDetect.malware1.28408.exe
- Size 316KB
- Sample220219-tlsesabfbk
- SHA256 d368129654ed665064a31746b5aee785e7fb5c7989cea3f440ec79bcf98165a5
Score
10/10
Malware Config
Extracted
Family
-
arkei
Botnet
-
Default
C2
-
http://woor.link/548152.php
Signatures
- Arkei
Arkei is an infostealer written in C++.
- Downloads MZ/PE file
- Deletes itself 1 IoCs
- Loads dropped DLL 5 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
- Delays execution with timeout.exe 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.28408.exe"C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.28408.exe"1⤵
- Loads dropped DLL
- Checks processor information in registry
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /c timeout /t 5 & del /f /q "C:\Users\Admin\AppData\Local\Temp\SecuriteInfo.com.W32.AIDetect.malware1.28408.exe" & exit2⤵
- Deletes itself
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\timeout.exetimeout /t 53⤵
- Delays execution with timeout.exe
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1320-55-0x0000000000220000-0x0000000000233000-memory.dmp
memory/1320-56-0x0000000000240000-0x000000000025F000-memory.dmp
memory/1320-57-0x0000000000400000-0x0000000000431000-memory.dmp
memory/1320-58-0x0000000074B21000-0x0000000074B23000-memory.dmp