Analysis

  • max time kernel
    119s
  • max time network
    122s
  • platform
    windows7_x64
  • resource
    win7-en-20211208
  • 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
  • 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:1632
    • C:\Windows\system32\WerFault.exe
      C:\Windows\system32\WerFault.exe -u -p 1632 -s 976
      2⤵
      • Program crash
      PID:1068

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1632-55-0x00000000001C0000-0x0000000000554000-memory.dmp

    Filesize

    3.6MB

  • memory/1632-56-0x000007FEF58D0000-0x000007FEF62BC000-memory.dmp

    Filesize

    9.9MB

  • memory/1632-57-0x000000001B800000-0x000000001B876000-memory.dmp

    Filesize

    472KB

  • memory/1632-58-0x000000001B030000-0x000000001B032000-memory.dmp

    Filesize

    8KB

  • memory/1632-59-0x000000001B9C0000-0x000000001BA70000-memory.dmp

    Filesize

    704KB

  • memory/1632-60-0x000000001BB10000-0x000000001BB72000-memory.dmp

    Filesize

    392KB