General

  • Target

    vbc.exe

  • Size

    175KB

  • Sample

    230727-r1k8xafd67

  • MD5

    c12fbddc2c7ae2eb6b4431bb52646d4d

  • SHA1

    9f7301a3f03277b684239d5d7f7cddac8d8cd0dd

  • SHA256

    aad4997c066612869506d530ae0715ea9afcb84289731fe7150e71d463cc0785

  • SHA512

    b8e0392bc8c56edce634e3b93fb76cf550ca111654761a4ad51d85c932f28539c28d8afb92c1fedffc5853982715c704c461199d4043d78845fa0db57caf28b4

  • SSDEEP

    3072:nwDijpS4DbYcr8bsDWMqE0I/PgQsU9+fFmll+TfvHpdLcxydWebIJ3yY7qzNwve0:nFPeBU/PgQsOWzLgAdE3y0qhYe0

Malware Config

Extracted

Family

azorult

C2

http://mkya2.shop/Mk1ay/index.php

Targets

    • Target

      vbc.exe

    • Size

      175KB

    • MD5

      c12fbddc2c7ae2eb6b4431bb52646d4d

    • SHA1

      9f7301a3f03277b684239d5d7f7cddac8d8cd0dd

    • SHA256

      aad4997c066612869506d530ae0715ea9afcb84289731fe7150e71d463cc0785

    • SHA512

      b8e0392bc8c56edce634e3b93fb76cf550ca111654761a4ad51d85c932f28539c28d8afb92c1fedffc5853982715c704c461199d4043d78845fa0db57caf28b4

    • SSDEEP

      3072:nwDijpS4DbYcr8bsDWMqE0I/PgQsU9+fFmll+TfvHpdLcxydWebIJ3yY7qzNwve0:nFPeBU/PgQsOWzLgAdE3y0qhYe0

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Checks QEMU agent file

      Checks presence of QEMU agent, possibly to detect virtualization.

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Deletes itself

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • 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.

    • Uses the VBS compiler for execution

    • Accesses Microsoft Outlook profiles

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Drops file in System32 directory

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks