Analysis

  • max time kernel
    4294183s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20220223-en
  • submitted
    06-03-2022 11:54

General

  • Target

    Leane.exe

  • Size

    4.0MB

  • MD5

    ebf4d78f0035564af1002ddfb5f44d7e

  • SHA1

    ee00172983aed98780ef55cfff7f85084bd627e9

  • SHA256

    26ebf8a0830652c9ea0de64dc0dca6d62caffc0aaa34abf43e7c410095c502ce

  • SHA512

    33e37b1aa1518f69e74ccc736fb9fdfad51d7d69b4685c88edacddea0f3a64ad066ed9daa5d96522583da66e588a636efb6a0d7224441281ac99db865550150b

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
  • 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:1088
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1088 -s 908
      2⤵
      • Program crash
      PID:1540

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1088-54-0x00000000012A0000-0x000000000169C000-memory.dmp

    Filesize

    4.0MB

  • memory/1088-55-0x000007FEF5C10000-0x000007FEF65FC000-memory.dmp

    Filesize

    9.9MB

  • memory/1088-56-0x000000001AD00000-0x000000001AD7A000-memory.dmp

    Filesize

    488KB

  • memory/1088-57-0x000000001B540000-0x000000001B542000-memory.dmp

    Filesize

    8KB

  • memory/1088-58-0x000000001BAD0000-0x000000001BB80000-memory.dmp

    Filesize

    704KB

  • memory/1088-59-0x000000001B4A0000-0x000000001B502000-memory.dmp

    Filesize

    392KB