Windows 7 deprecation
Windows 7 will be removed from tria.ge on 2025-03-31
Analysis
-
max time kernel
141s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
-
submitted
13/02/2024, 02:24
General
-
Target
Ynstr.exe
-
Size
718KB
-
MD5
43a00ef10637139c060f1139df3b9cc1
-
SHA1
f717df8434925d25e03512c91385bc528576339e
-
SHA256
f2a3d321b3fbb2d3be23e5416a82b92d9aa73c3573ef0630d0570483ced8a731
-
SHA512
19c9ea8f334c2ff21ae39339e94603f7245feb67784d22ab551c809d8d7dd364941b18c8e649476b9a260d89f8005ba9ebb5b9baf401327ef6c6a44c33602bbc
-
SSDEEP
12288:RCcj8EhT1GrAjbadQSIVCXfUWQBZoeAfeDlV25x3nGxYcBa8k:Icj8EzCdQSIkXsWQE4lV259Gx
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.emulines.biz - Port:
587 - Username:
[email protected] - Password:
7FZLGL7DTG0F - Email To:
[email protected]
Signatures
-
AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
-
Detect ZGRat V1 34 IoCs
-
ZGRat
ZGRat is remote access trojan written in C#.
-
Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
-
Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
-
Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
-
Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
-
Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
-
Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
-
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
-
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
-
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
-
Adds Run key to start application 2 TTPs 2 IoCs
-
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 SetThreadContext 1 IoCs
-
Suspicious behavior: EnumeratesProcesses 2 IoCs
-
Suspicious use of AdjustPrivilegeToken 2 IoCs
-
Suspicious use of WriteProcessMemory 8 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\Ynstr.exe"C:\Users\Admin\AppData\Local\Temp\Ynstr.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Ynstr.exeC:\Users\Admin\AppData\Local\Temp\Ynstr.exe2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
1KB
MD5b3b3daebe9fafdfde1f7a2c832331167
SHA15603b8544b1558b27c2581b11c23dda16dd1865a
SHA25694d1a08013bee7bf54c208d9fd1037041143f422832723071f7f6435fdc3c6ed
SHA5124b439f2dd06404c9e514f111ab99ed502304bcd1a8d674819c380ad79ac2f9f83b78e835115f7c49d2629d0e5e1b82c36fe81d698c46fc2264238fe52c5af7cb
-
Filesize
7.7MB
-
Filesize
744KB
-
Filesize
736KB
-
Filesize
6.1MB
-
Filesize
1.0MB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
712KB
-
Filesize
4KB
-
Filesize
64KB
-
Filesize
264KB
-
Filesize
304KB
-
Filesize
5.6MB
-
Filesize
7.7MB
-
Filesize
7.7MB
-
Filesize
264KB
-
Filesize
64KB
-
Filesize
408KB
-
Filesize
320KB
-
Filesize
624KB
-
Filesize
7.7MB
-
Filesize
64KB
-
Filesize
584KB
-
Filesize
40KB