Analysis

  • max time kernel
    47s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    20-11-2020 18:01

General

  • Target

    c48cb25059f32fc7d90c16a275586d98f18ce43563b6f1a3fbeb282e8f4dd62f.exe

  • Size

    377KB

  • MD5

    526f579a895b5294709684a3f48a6704

  • SHA1

    20b24bd05c48d69cd0fd0bb5a7be6e9a2f832590

  • SHA256

    c48cb25059f32fc7d90c16a275586d98f18ce43563b6f1a3fbeb282e8f4dd62f

  • SHA512

    d9d9005baa429679e31d811cd7aa5d076f81678faf7a91a3527a4afb2fd700d911ad27906f356fc0b6de435858ee60f9c3d6104fe273dfdeadbbdb32a7db4ea1

Malware Config

Extracted

Family

azorult

C2

http://185.222.57.246/key/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.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • 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.

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c48cb25059f32fc7d90c16a275586d98f18ce43563b6f1a3fbeb282e8f4dd62f.exe
    "C:\Users\Admin\AppData\Local\Temp\c48cb25059f32fc7d90c16a275586d98f18ce43563b6f1a3fbeb282e8f4dd62f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4700
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\oSPiRlkVjPPlv" /XML "C:\Users\Admin\AppData\Local\Temp\tmpF9A8.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4320
    • C:\Users\Admin\AppData\Local\Temp\c48cb25059f32fc7d90c16a275586d98f18ce43563b6f1a3fbeb282e8f4dd62f.exe
      "{path}"
      2⤵
      • Loads dropped DLL
      • Checks processor information in registry
      • Suspicious behavior: EnumeratesProcesses
      PID:656

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

4
T1005

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpF9A8.tmp
    MD5

    567a1558f8b4d7c2be5ee36a7908f156

    SHA1

    dc339cabae280ca619822159907e9a5917d6e251

    SHA256

    9125c49d379c6a76c54ee0931feca729dd0a59cc459cd53032f092ee8e027e7e

    SHA512

    d7d0422ecc3dfd0c66b09d14af9ee0dc9e225fcec488a901330318685f360c61581ee3907f4f283aeb3908d8e4761f1f87570851f79d6c204a3af932b6910c5d

  • \Users\Admin\AppData\Local\Temp\CE87CE80\mozglue.dll
    MD5

    9e682f1eb98a9d41468fc3e50f907635

    SHA1

    85e0ceca36f657ddf6547aa0744f0855a27527ee

    SHA256

    830533bb569594ec2f7c07896b90225006b90a9af108f49d6fb6bebd02428b2d

    SHA512

    230230722d61ac1089fabf3f2decfa04f9296498f8e2a2a49b1527797dca67b5a11ab8656f04087acadf873fa8976400d57c77c404eba4aff89d92b9986f32ed

  • \Users\Admin\AppData\Local\Temp\CE87CE80\msvcp140.dll
    MD5

    109f0f02fd37c84bfc7508d4227d7ed5

    SHA1

    ef7420141bb15ac334d3964082361a460bfdb975

    SHA256

    334e69ac9367f708ce601a6f490ff227d6c20636da5222f148b25831d22e13d4

    SHA512

    46eb62b65817365c249b48863d894b4669e20fcb3992e747cd5c9fdd57968e1b2cf7418d1c9340a89865eadda362b8db51947eb4427412eb83b35994f932fd39

  • \Users\Admin\AppData\Local\Temp\CE87CE80\nss3.dll
    MD5

    556ea09421a0f74d31c4c0a89a70dc23

    SHA1

    f739ba9b548ee64b13eb434a3130406d23f836e3

    SHA256

    f0e6210d4a0d48c7908d8d1c270449c91eb4523e312a61256833bfeaf699abfb

    SHA512

    2481fc80dffa8922569552c3c3ebaef8d0341b80427447a14b291ec39ea62ab9c05a75e85eef5ea7f857488cab1463c18586f9b076e2958c5a314e459045ede2

  • \Users\Admin\AppData\Local\Temp\CE87CE80\vcruntime140.dll
    MD5

    7587bf9cb4147022cd5681b015183046

    SHA1

    f2106306a8f6f0da5afb7fc765cfa0757ad5a628

    SHA256

    c40bb03199a2054dabfc7a8e01d6098e91de7193619effbd0f142a7bf031c14d

    SHA512

    0b63e4979846ceba1b1ed8470432ea6aa18cca66b5f5322d17b14bc0dfa4b2ee09ca300a016e16a01db5123e4e022820698f46d9bad1078bd24675b4b181e91f

  • memory/656-17-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/656-16-0x000000000041A684-mapping.dmp
  • memory/656-15-0x0000000000400000-0x0000000000420000-memory.dmp
    Filesize

    128KB

  • memory/4320-13-0x0000000000000000-mapping.dmp
  • memory/4700-5-0x0000000005220000-0x0000000005221000-memory.dmp
    Filesize

    4KB

  • memory/4700-12-0x00000000097E0000-0x00000000097E1000-memory.dmp
    Filesize

    4KB

  • memory/4700-11-0x0000000005800000-0x0000000005849000-memory.dmp
    Filesize

    292KB

  • memory/4700-10-0x0000000006170000-0x0000000006184000-memory.dmp
    Filesize

    80KB

  • memory/4700-9-0x000000000A4D0000-0x000000000A4D1000-memory.dmp
    Filesize

    4KB

  • memory/4700-8-0x0000000002BC0000-0x0000000002BC1000-memory.dmp
    Filesize

    4KB

  • memory/4700-0-0x0000000073FA0000-0x000000007468E000-memory.dmp
    Filesize

    6.9MB

  • memory/4700-4-0x0000000009AA0000-0x0000000009AA1000-memory.dmp
    Filesize

    4KB

  • memory/4700-3-0x0000000002B50000-0x0000000002BA3000-memory.dmp
    Filesize

    332KB

  • memory/4700-1-0x0000000000630000-0x0000000000631000-memory.dmp
    Filesize

    4KB