Analysis

  • max time kernel
    159s
  • max time network
    169s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220112
  • submitted
    19-02-2022 22:46

General

  • Target

    4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe

  • Size

    152KB

  • MD5

    bb56886ff83e5ab9e15d1041b79de9a9

  • SHA1

    4df5f4534af6e7e2d6d12fccd1739a824575185e

  • SHA256

    4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7

  • SHA512

    7c3f38ba63bb101e24a5c1ac64991936a96b51cec504c87377ee239be951c3ef3299da1e9622726db6603d062ff46dfb26062b20bfe12f830067f2789d6170f6

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Signatures

  • Azorult

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

  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Drops file in Windows directory 4 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.

  • Modifies data under HKEY_USERS 50 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe
    "C:\Users\Admin\AppData\Local\Temp\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe"
    1⤵
    • Modifies system executable filetype association
    • Checks computer location settings
    • Drops file in Windows directory
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1532
    • C:\Users\Admin\AppData\Local\Temp\3582-490\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe"
      2⤵
      • Executes dropped EXE
      PID:1484
  • C:\Windows\system32\MusNotifyIcon.exe
    %systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
    1⤵
    • Checks processor information in registry
    PID:3056
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k NetworkService -p
    1⤵
    • Drops file in Windows directory
    • Modifies data under HKEY_USERS
    PID:3228
  • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
    C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
    1⤵
    • Drops file in Windows directory
    • Suspicious use of AdjustPrivilegeToken
    PID:3836

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\3582-490\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe
    MD5

    381ac0493ee4b1175316533e6861d519

    SHA1

    dcf989fc48d4795ec90b2c80924af84a5580a040

    SHA256

    1c9b2ff9f42f69bb77a25fa3015fdad327aca44374bd3380627d3f60a1ba21f0

    SHA512

    8b2018ce626d4d61a8c50d9b45158371c2cbe595312221af9d40e3387fda8ccb316fb3679edf16d2a91868a6dcf3c3a819905c02114352d11b5e683e12059952

  • C:\Users\Admin\AppData\Local\Temp\3582-490\4ed607dc59589b6af9fbaa3a287d7e9a07d8b175542ab910c863a1a3e0a3c8c7.exe
    MD5

    381ac0493ee4b1175316533e6861d519

    SHA1

    dcf989fc48d4795ec90b2c80924af84a5580a040

    SHA256

    1c9b2ff9f42f69bb77a25fa3015fdad327aca44374bd3380627d3f60a1ba21f0

    SHA512

    8b2018ce626d4d61a8c50d9b45158371c2cbe595312221af9d40e3387fda8ccb316fb3679edf16d2a91868a6dcf3c3a819905c02114352d11b5e683e12059952