Analysis
- max time kernel
119s - max time network
149s - platform
windows10-2004_x64 - resource
win10v2004-20240412-en - resource tags
- submitted
21/04/2024, 01:22
General
- Target 05bfbb0886bf381e6a4b2875e928aedf6abe197884d9a64ad7137f6016ed5c9f.exe
- Size 276KB
- Sample240421-bra4ksff2y
- SHA256 05bfbb0886bf381e6a4b2875e928aedf6abe197884d9a64ad7137f6016ed5c9f
Malware Config
Extracted
-
xehook
-
https://unotree.ru/
-
https://aiwhcpoaw.ru/
Signatures
- Detect Xehook Payload 3 IoCs
- Xehook stealer
Xehook is an infostealer written in C#.
- Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- 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
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\05bfbb0886bf381e6a4b2875e928aedf6abe197884d9a64ad7137f6016ed5c9f.exe"C:\Users\Admin\AppData\Local\Temp\05bfbb0886bf381e6a4b2875e928aedf6abe197884d9a64ad7137f6016ed5c9f.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
memory/212-0-0x0000000000A60000-0x0000000000AA9000-memory.dmp
memory/212-2-0x0000000000A60000-0x0000000000AA9000-memory.dmp
memory/4432-1-0x0000000000400000-0x000000000041C000-memory.dmp
memory/4432-3-0x00000000743B0000-0x0000000074B60000-memory.dmp
memory/4432-4-0x0000000005D40000-0x00000000062E4000-memory.dmp
memory/4432-5-0x0000000005930000-0x0000000005940000-memory.dmp
memory/4432-6-0x0000000006A80000-0x0000000006B12000-memory.dmp
memory/4432-7-0x00000000069F0000-0x0000000006A56000-memory.dmp
memory/4432-12-0x00000000743B0000-0x0000000074B60000-memory.dmp