Analysis

  • max time kernel
    39s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    30-11-2020 18:01

General

  • Target

    9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75.exe

  • Size

    368KB

  • MD5

    e2d9773edc555ecaf97ecffe4c1dc5aa

  • SHA1

    d70a0fd2e5d2674528d6a534f5a8ab6c5efcb956

  • SHA256

    9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75

  • SHA512

    f93f05f3c7e0ce25a258c69d85d99ae0ccb73d4b7e6a629527a5917ff282de283ff96f346b9f98c2a5dd0144c1b1da77be5e37c78b173d66425a416694351bf4

Malware Config

Extracted

Family

azorult

C2

http://185.239.242.195/vh/index.php

Signatures

  • Azorult

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

  • Loads dropped DLL 4 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • 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.

  • 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.

  • JavaScript code in executable 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75.exe
    "C:\Users\Admin\AppData\Local\Temp\9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4692
    • C:\Users\Admin\AppData\Local\Temp\9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75.exe
      "C:\Users\Admin\AppData\Local\Temp\9f0267095bb3b87b6e1658a59143fa8df2d82a26dac4031d06753d674c7fba75.exe"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:3168

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

3
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
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

  • memory/3168-10-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/3168-12-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/3168-11-0x000000000041A1F8-mapping.dmp
  • memory/4692-6-0x0000000004FD0000-0x0000000004FD1000-memory.dmp
    Filesize

    4KB

  • memory/4692-9-0x0000000006C80000-0x0000000006C96000-memory.dmp
    Filesize

    88KB

  • memory/4692-8-0x0000000006C20000-0x0000000006C70000-memory.dmp
    Filesize

    320KB

  • memory/4692-7-0x0000000004FA0000-0x0000000004FA1000-memory.dmp
    Filesize

    4KB

  • memory/4692-2-0x0000000073430000-0x0000000073B1E000-memory.dmp
    Filesize

    6.9MB

  • memory/4692-5-0x0000000005430000-0x0000000005431000-memory.dmp
    Filesize

    4KB

  • memory/4692-3-0x00000000006F0000-0x00000000006F1000-memory.dmp
    Filesize

    4KB