Analysis

  • max time kernel
    13s
  • max time network
    116s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    09-04-2021 12:04

General

  • Target

    2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe

  • Size

    164KB

  • MD5

    e321f0c21e0e4005887cce488b0fd2e0

  • SHA1

    97e1ebc4b4a2ef188c31b61fcf4d35acadbdf8b3

  • SHA256

    2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b

  • SHA512

    7b6d8c92249fb9d126a6c744a6195f2460b0d0412c7a4e4ffc77dff3a62c20df54721673138da0cdd22090c9b830d214c25169b2711e794924ee7ce95347e889

Malware Config

Extracted

Family

azorult

C2

http://mbstechnology.redirectme.net/index.php

Signatures

  • Azorult

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

  • Loads dropped DLL 5 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads local data of messenger clients 2 TTPs

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

  • 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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe
    "C:\Users\Admin\AppData\Local\Temp\2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe"
    1⤵
    • Loads dropped DLL
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:4084
    • C:\Users\Admin\AppData\Local\Temp\2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe
      "C:\Users\Admin\AppData\Local\Temp\2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2448
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\system32\cmd.exe" /c C:\Windows\system32\timeout.exe 3 & del "2233af88b1f14a01921806ef1c91df8a7686d898c03fb700144d0d6c2feb374b.exe"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2828
        • C:\Windows\SysWOW64\timeout.exe
          C:\Windows\system32\timeout.exe 3
          4⤵
          • Delays execution with timeout.exe
          PID:1340

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

5
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

5
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\2fda\mozglue.dll
    MD5

    9e682f1eb98a9d41468fc3e50f907635

    SHA1

    85e0ceca36f657ddf6547aa0744f0855a27527ee

    SHA256

    830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

    SHA512

    230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

  • \Users\Admin\AppData\Local\Temp\2fda\msvcp140.dll
    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • \Users\Admin\AppData\Local\Temp\2fda\nss3.dll
    MD5

    556ea09421a0f74d31c4c0a89a70dc23

    SHA1

    f739ba9b548ee64b13eb434a3130406d23f836e3

    SHA256

    f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

    SHA512

    2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

  • \Users\Admin\AppData\Local\Temp\2fda\vcruntime140.dll
    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

  • \Users\Admin\AppData\Local\Temp\nst362A.tmp\t0ef.dll
    MD5

    c4e8066fcef118367d33e9694556b3b4

    SHA1

    b3338f3e064e1e8748ab369793a3f377d3252ece

    SHA256

    b39f883e8826b9b97de208016cfe1444a015a76b9cebaaec6b2d4ff8e2cd4573

    SHA512

    c82b72d2053de74d634f5c7a76d95e663c8026a980d3c93583160d2395d0a70ffd858193cc739c61a49ab9e5acbe97d734617815c42ec056860eb4cdff43a9bc

  • memory/1340-123-0x0000000000000000-mapping.dmp
  • memory/2448-116-0x000000000041A1F8-mapping.dmp
  • memory/2448-117-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/2828-122-0x0000000000000000-mapping.dmp
  • memory/4084-115-0x0000000002D00000-0x0000000002D03000-memory.dmp
    Filesize

    12KB