Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • submitted
    05-03-2022 22:56

General

  • Target

    Leane.exe

  • Size

    4.0MB

  • MD5

    a6651dc499e0b9141a6fa0f411f885ea

  • SHA1

    a421e5753596d4c07ee8df06c2080c03507f7a37

  • SHA256

    5ce632f1f10c96a7524bf384015c25681ef4771f09a6b86883a4da309d85452a

  • SHA512

    2fe1f190dddfb2e1b34f4056718f0a09e86fd27708a709a45e536aa2654341e898b39e5e8ec6d6cb171a0a3bd30f6db6a3a1675a4d5219c91ed5cc3419a513fd

Malware Config

Extracted

Family

blackguard

C2

https://api.telegram.org/bot2029788337:AAH5_pYeay9X4P5MpT2OjpO_WEdpwJdVhb4/sendMessage?chat_id=1283089701

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
  • Suspicious use of WriteProcessMemory 3 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
    • Suspicious use of WriteProcessMemory
    PID:1100
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1100 -s 896
      2⤵
      • Program crash
      PID:1568

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1100-54-0x000007FEF4E40000-0x000007FEF582C000-memory.dmp

    Filesize

    9.9MB

  • memory/1100-55-0x0000000001210000-0x000000000160C000-memory.dmp

    Filesize

    4.0MB

  • memory/1100-56-0x000000001B2D0000-0x000000001B34A000-memory.dmp

    Filesize

    488KB

  • memory/1100-57-0x000000001B370000-0x000000001B372000-memory.dmp

    Filesize

    8KB

  • memory/1100-58-0x000000001BA80000-0x000000001BB30000-memory.dmp

    Filesize

    704KB

  • memory/1100-59-0x000000001B6D0000-0x000000001B732000-memory.dmp

    Filesize

    392KB