General

  • Target

    9bf56ab43a909ec49299e2e2d27a7418cb8c5b0b1369015dad171aaebabd509b.exe

  • Size

    670KB

  • Sample

    240521-bwz89sdg92

  • MD5

    a0a76a3cb895af970be13cca6504e378

  • SHA1

    dd554c3c7f784a7e0be22ee657791224c0bf6a1c

  • SHA256

    9bf56ab43a909ec49299e2e2d27a7418cb8c5b0b1369015dad171aaebabd509b

  • SHA512

    5e28ff39e2c11160f286ab67159b3e3975e7b0f979369cc3a67ef450a7dac7536be5cfae2742405ebcfae54e695cddb54c28379c20478e881117d8a90dba11ff

  • SSDEEP

    12288:v1zHj5QmY+pTUXzmXC+DEh3LAH3xCeZy5+Ksj:v1rjex+wmy+DEtUHhCAy51

Malware Config

Extracted

Family

agenttesla

Credentials

Targets

    • Target

      9bf56ab43a909ec49299e2e2d27a7418cb8c5b0b1369015dad171aaebabd509b.exe

    • Size

      670KB

    • MD5

      a0a76a3cb895af970be13cca6504e378

    • SHA1

      dd554c3c7f784a7e0be22ee657791224c0bf6a1c

    • SHA256

      9bf56ab43a909ec49299e2e2d27a7418cb8c5b0b1369015dad171aaebabd509b

    • SHA512

      5e28ff39e2c11160f286ab67159b3e3975e7b0f979369cc3a67ef450a7dac7536be5cfae2742405ebcfae54e695cddb54c28379c20478e881117d8a90dba11ff

    • SSDEEP

      12288:v1zHj5QmY+pTUXzmXC+DEh3LAH3xCeZy5+Ksj:v1rjex+wmy+DEtUHhCAy51

    • AgentTesla

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

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • Detect packed .NET executables. Mostly AgentTeslaV4.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables referencing Windows vault credential objects. Observed in infostealers

    • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers

    • Detects executables referencing many email and collaboration clients. Observed in information stealers

    • Detects executables referencing many file transfer clients. Observed in information stealers

    • Loads dropped DLL

    • Reads WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    • Target

      $PLUGINSDIR/System.dll

    • Size

      11KB

    • MD5

      8b3830b9dbf87f84ddd3b26645fed3a0

    • SHA1

      223bef1f19e644a610a0877d01eadc9e28299509

    • SHA256

      f004c568d305cd95edbd704166fcd2849d395b595dff814bcc2012693527ac37

    • SHA512

      d13cfd98db5ca8dc9c15723eee0e7454975078a776bce26247228be4603a0217e166058ebadc68090afe988862b7514cb8cb84de13b3de35737412a6f0a8ac03

    • SSDEEP

      192:ex24sihno00Wfl97nH6BenXwWobpWBTtvShJ5omi7dJWjOlESlS:h8QIl972eXqlWBFSt273YOlEz

    Score
    3/10

MITRE ATT&CK Enterprise v15

Tasks