Analysis

  • max time kernel
    140s
  • max time network
    111s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    22-05-2024 02:00

General

  • Target

    940e50d333d1abcc6310c1eda1e82c24e16bd132d477810a800150eb6ea819a1.exe

  • Size

    246KB

  • MD5

    d7dfc312f14a618a89496d1877d81dbf

  • SHA1

    254feadc7b0265f24c42dd0e17311269a3c62cbd

  • SHA256

    940e50d333d1abcc6310c1eda1e82c24e16bd132d477810a800150eb6ea819a1

  • SHA512

    41d68028f6e1d4c047ee80e0f12353605cf794f6b29f7a28208933473d054d713e02a04d223be23333eb0f63cc071badae0b9fca9e55c520255d0e05431b44ff

  • SSDEEP

    3072:YFbBl7xzLrTD4U46+MuOR+hr8T+ks/9eFIin5NvFMd2qf:YFT7xzLrTD4UQMbi9YKiXFMc

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot6699017241:AAF6AbO-YOnLd-PVOPirAbnkK1ZplmEL8BY/

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • 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 WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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 1 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 behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\940e50d333d1abcc6310c1eda1e82c24e16bd132d477810a800150eb6ea819a1.exe
    "C:\Users\Admin\AppData\Local\Temp\940e50d333d1abcc6310c1eda1e82c24e16bd132d477810a800150eb6ea819a1.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    PID:220

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/220-0-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

    Filesize

    4KB

  • memory/220-1-0x0000000000420000-0x0000000000464000-memory.dmp

    Filesize

    272KB

  • memory/220-2-0x0000000005350000-0x00000000058F4000-memory.dmp

    Filesize

    5.6MB

  • memory/220-3-0x0000000004F50000-0x0000000004FB6000-memory.dmp

    Filesize

    408KB

  • memory/220-4-0x0000000074AC0000-0x0000000075270000-memory.dmp

    Filesize

    7.7MB

  • memory/220-5-0x0000000006640000-0x00000000066D2000-memory.dmp

    Filesize

    584KB

  • memory/220-8-0x0000000006740000-0x0000000006790000-memory.dmp

    Filesize

    320KB

  • memory/220-9-0x0000000006830000-0x00000000068CC000-memory.dmp

    Filesize

    624KB

  • memory/220-10-0x0000000006820000-0x000000000682A000-memory.dmp

    Filesize

    40KB

  • memory/220-11-0x0000000074ACE000-0x0000000074ACF000-memory.dmp

    Filesize

    4KB

  • memory/220-12-0x0000000074AC0000-0x0000000075270000-memory.dmp

    Filesize

    7.7MB