Analysis

  • max time kernel
    139s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    07-07-2020 06:09

General

  • Target

    655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66.exe

  • Size

    294KB

  • MD5

    a42e195a8a3de45dc2bc88e33af006a4

  • SHA1

    1ce81ed627893bb2cb4aa83b008dcd10c9203dae

  • SHA256

    655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66

  • SHA512

    2a08c7e3110e080d2377e7e25f7cc3f1ff936ceb5e59f5f763955578b68cafe10b8d260a6b3147d0bd6d127774a298181bca8ad6256f40a42318df31756de90c

Malware Config

Extracted

Family

azorult

C2

http://217.160.254.33/index.php

Signatures

  • Reads user/profile data of local email clients 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Checks for installed software on the system 1 TTPs 30 IoCs
  • Loads dropped DLL 16 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Azorult

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66.exe
    "C:\Users\Admin\AppData\Local\Temp\655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66.exe
      "{path}"
      2⤵
        PID:1840
      • C:\Users\Admin\AppData\Local\Temp\655455e4c04c7fd6e624b752797305264093264c08b0ab45ebfceee5f7abbc66.exe
        "{path}"
        2⤵
        • Checks for installed software on the system
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        PID:1856

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-convert-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-environment-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-filesystem-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-heap-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-locale-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-math-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-multibyte-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-runtime-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-stdio-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-string-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-time-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\api-ms-win-crt-utility-l1-1-0.dll

    • \Users\Admin\AppData\Local\Temp\2fda\mozglue.dll

    • \Users\Admin\AppData\Local\Temp\2fda\msvcp140.dll

    • \Users\Admin\AppData\Local\Temp\2fda\nss3.dll

    • \Users\Admin\AppData\Local\Temp\2fda\vcruntime140.dll

    • memory/1032-1-0x0000000000000000-0x0000000000000000-disk.dmp

    • memory/1856-4-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB

    • memory/1856-3-0x000000000041A1F8-mapping.dmp

    • memory/1856-2-0x0000000000400000-0x0000000000420000-memory.dmp

      Filesize

      128KB