Analysis
- max time kernel
149s - max time network
93s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
31/12/2023, 04:45
General
- Target 28b7f69fdd58bfd90380ddb5300ecfe4.exe
- Size 1.2MB
- Sample231231-fdmyfagef7
- SHA256 052deff6ad3f6b1a650cd1ea74364098c5e150a49075c5e658df122b26ff4253
Score
10/10
Malware Config
Extracted
Family
-
44caliber
C2
-
https://discord.com/api/webhooks/883688127175200818/yRBxjwNCXKuKU1ENVWWQWzWeYjM0aMHm2_2CbC9L_IEvWpxwLV-IGdAXzmyDpm4aIz8V
Signatures
- 44Caliber
An open source infostealer written in C#.
- 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
- Suspicious behavior: EnumeratesProcesses 3 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\28b7f69fdd58bfd90380ddb5300ecfe4.exe"C:\Users\Admin\AppData\Local\Temp\28b7f69fdd58bfd90380ddb5300ecfe4.exe"1⤵
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3640 -s 13362⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 3640 -ip 36401⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
Bookmarks.txt
memory/3640-0-0x0000000000BC0000-0x0000000000F72000-memory.dmp
memory/3640-2-0x0000000073FB0000-0x0000000074760000-memory.dmp
memory/3640-1-0x0000000000BC0000-0x0000000000F72000-memory.dmp
memory/3640-3-0x0000000005950000-0x0000000005960000-memory.dmp
memory/3640-38-0x0000000073FB0000-0x0000000074760000-memory.dmp
memory/3640-37-0x0000000000BC0000-0x0000000000F72000-memory.dmp