Resubmissions

29-09-2021 14:29

210929-rtl7mafcdk 10

29-09-2021 14:25

210929-rre1jafbc3 10

29-09-2021 14:21

210929-rn53jsfbb8 10

Analysis

  • max time kernel
    124s
  • max time network
    154s
  • platform
    windows10_x64
  • resource
    win10-de-20210920
  • submitted
    29-09-2021 14:21

General

  • Target

    a28f2e84d613b1c2b632352880d530fe.exe

  • Size

    169KB

  • MD5

    a28f2e84d613b1c2b632352880d530fe

  • SHA1

    6c036e2f942b68b7903cc9c00d185306661d9a43

  • SHA256

    500b733cbc1ac73598983140ae1b27cb21d06b4e55b5f6d325e5c56b87d8a82f

  • SHA512

    421f68ea65192dc8a9ba0be64f47b308b8785a641e9d775590b3d764071e13a0b149f7052e785e44d3e44c6396a16fcc725f759adb94b6ffafc117fba0000ae6

Malware Config

Extracted

Family

azorult

C2

http://37.0.8.36/oxxs/index.php

Signatures

  • Azorult

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

  • Registers COM server for autorun 1 TTPs
  • Drops file in System32 directory 4 IoCs
  • Modifies data under HKEY_USERS 23 IoCs
  • Modifies registry class 44 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a28f2e84d613b1c2b632352880d530fe.exe
    "C:\Users\Admin\AppData\Local\Temp\a28f2e84d613b1c2b632352880d530fe.exe"
    1⤵
      PID:1980
    • C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.170.0822.0002\FileSyncConfig.exe
      "C:\Users\Admin\AppData\Local\Microsoft\OneDrive\21.170.0822.0002\FileSyncConfig.exe"
      1⤵
      • Modifies registry class
      PID:1264
    • C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe
      "C:\Program Files\Common Files\Microsoft Shared\ClickToRun\OfficeC2RClient.exe" /frequentupdate SCHEDULEDTASK displaylevel=False
      1⤵
      • Drops file in System32 directory
      • Modifies data under HKEY_USERS
      • Suspicious use of SetWindowsHookEx
      PID:2828

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1980-115-0x00000000020C0000-0x00000000020DD000-memory.dmp
      Filesize

      116KB

    • memory/1980-116-0x0000000000400000-0x00000000004B1000-memory.dmp
      Filesize

      708KB