Analysis
- max time kernel
154s - max time network
90s - platform
windows10-2004_x64 - resource
win10v2004-20220715-en - resource tags
- submitted
18/07/2022, 08:16
General
- Target New Request for Purchase Inquiry_900409.pdf.exe
- Size 711KB
- Sample220718-j55jcaafd3
- SHA256 72ddab4f51c14024fcd08f38c2c048801bc3031a0063534c18a4c6efea68aeb0
Malware Config
Signatures
- BluStealer
A Modular information stealer written in Visual Basic.
- StormKitty
StormKitty is an open source info stealer written in C#.
- StormKitty payload 1 IoCs
- Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of SetThreadContext 2 IoCs
- 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.
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 13 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\New Request for Purchase Inquiry_900409.pdf.exe"C:\Users\Admin\AppData\Local\Temp\New Request for Purchase Inquiry_900409.pdf.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\New Request for Purchase Inquiry_900409.pdf.exe"C:\Users\Admin\AppData\Local\Temp\New Request for Purchase Inquiry_900409.pdf.exe"2⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\AppLaunch.exe3⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/1644-130-0x0000000000EA0000-0x0000000000F58000-memory.dmp
memory/1644-131-0x0000000005EA0000-0x0000000006444000-memory.dmp
memory/1644-132-0x00000000058F0000-0x0000000005982000-memory.dmp
memory/1644-133-0x0000000005A90000-0x0000000005A9A000-memory.dmp
memory/1644-134-0x0000000007DC0000-0x0000000007E5C000-memory.dmp
memory/1644-135-0x00000000018D0000-0x0000000001936000-memory.dmp
memory/4216-137-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4216-139-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4216-142-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4216-145-0x0000000000400000-0x0000000000428000-memory.dmp
memory/4428-144-0x0000000000590000-0x00000000005AA000-memory.dmp