Analysis

  • max time kernel
    91s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    06-03-2022 11:55

General

  • Target

    Leane.exe

  • Size

    3.6MB

  • MD5

    a7340f408f53e08754a5bc56b835c3bf

  • SHA1

    c8b9de345e9c64f319fe427ef0cb8076a57cbf08

  • SHA256

    d3b27ba36d01a6ed5492d662c20b38569b0019c29fe065e8f810b369fba76531

  • SHA512

    cb44f77081afeb648da5491ce7aef0dbbb365ad1028170638b2081707502e1b7dc679146268837f2ffc1bbfc6b6af67a6d9693b9091b4e528a9d333026105d27

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot1840568117:AAGlvKQeSfXkObSE7__yYc5jM9o8qSrkFUw/sendMessage?chat_id=1039923904

Signatures

  • BlackGuard

    Infostealer first seen in Late 2021.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Leane.exe
    "C:\Users\Admin\AppData\Local\Temp\Leane.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3772
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 3772 -s 1456
      2⤵
      • Program crash
      PID:3788
  • C:\Windows\system32\WerFault.exe
    C:\Windows\system32\WerFault.exe -pss -s 180 -p 3772 -ip 3772
    1⤵
      PID:3576

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Credential Access

    Credentials in Files

    1
    T1081

    Collection

    Data from Local System

    1
    T1005

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3772-130-0x0000015CCC510000-0x0000015CCC8A4000-memory.dmp
      Filesize

      3.6MB

    • memory/3772-131-0x00007FFC86940000-0x00007FFC87401000-memory.dmp
      Filesize

      10.8MB

    • memory/3772-132-0x0000015CCCAE0000-0x0000015CCCAE2000-memory.dmp
      Filesize

      8KB

    • memory/3772-133-0x0000015CE87F0000-0x0000015CE8840000-memory.dmp
      Filesize

      320KB

    • memory/3772-134-0x0000015CE86B0000-0x0000015CE86D2000-memory.dmp
      Filesize

      136KB