Analysis
- max time kernel
150s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
06/03/2023, 14:01
General
- Target 5d81fbfb555468e8dbcaf4eb11db5eb50a0bef70df7e8322a84fac5d6cb88977.exe
- Size 125KB
- Sample230306-rbh29aca9x
- SHA256 5d81fbfb555468e8dbcaf4eb11db5eb50a0bef70df7e8322a84fac5d6cb88977
Malware Config
Extracted
-
blustealer
-
https://api.telegram.org/bot5369570306:AAGakouymXOc8dp0WUuP_KaS81h9taRj_pk/sendMessage?chat_id=1884866272
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
- 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 1 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 5 IoCs
- outlook_office_path 1 IoCs
- outlook_win_path 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5d81fbfb555468e8dbcaf4eb11db5eb50a0bef70df7e8322a84fac5d6cb88977.exe"C:\Users\Admin\AppData\Local\Temp\5d81fbfb555468e8dbcaf4eb11db5eb50a0bef70df7e8322a84fac5d6cb88977.exe"1⤵
- 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.exe2⤵
- Accesses Microsoft Outlook profiles
- Checks processor information in registry
- Suspicious use of AdjustPrivilegeToken
- outlook_office_path
- outlook_win_path
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2636-136-0x0000000000D10000-0x0000000000D2A000-memory.dmp
memory/2636-137-0x0000000005520000-0x0000000005586000-memory.dmp
memory/2636-138-0x0000000005EA0000-0x0000000005F3C000-memory.dmp
memory/5060-135-0x0000000000400000-0x00000000004219CC-memory.dmp
memory/5060-140-0x0000000000400000-0x00000000004219CC-memory.dmp