Analysis
- max time kernel
135s - max time network
103s - platform
windows10-2004_x64 - resource
win10v2004-20240802-en - resource tags
- submitted
20/08/2024, 02:01
General
- Target d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe
- Size 1.2MB
- Sample240820-cfwftaybnb
- SHA256 d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f
Malware Config
Extracted
-
44caliber
-
https://discord.com/api/webhooks/1274462328603148298/RG8TQ5NOTPK7lllW9DXds8Z7Vj68QWZX7Duc-LfDNeqa_HouSEGlNyNzsrVH6EfQxrh8
Signatures
- 44Caliber
An open source infostealer written in C#.
- Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
- 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
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Program crash 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe"C:\Users\Admin\AppData\Local\Temp\d5a18b44a40e9bc1952bce6e187b81926ffd358aa5ebe95921cde2b9a72b172f.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1432 -s 15362⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1432 -ip 14321⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Bookmarks.txt
memory/1432-0-0x00000000009B0000-0x0000000000D6A000-memory.dmp
memory/1432-1-0x000000007411E000-0x000000007411F000-memory.dmp
memory/1432-2-0x00000000009B0000-0x0000000000D6A000-memory.dmp
memory/1432-3-0x00000000009B0000-0x0000000000D6A000-memory.dmp
memory/1432-14-0x0000000074110000-0x00000000748C0000-memory.dmp
memory/1432-39-0x00000000009B0000-0x0000000000D6A000-memory.dmp
memory/1432-40-0x0000000074110000-0x00000000748C0000-memory.dmp