Analysis

  • max time kernel
    130s
  • max time network
    144s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    22/06/2021, 06:56

General

  • Target
    AttachmentPDF.exe
  • Size 861KB
  • Sample210622-9h3bbe2afj
  • SHA256 7e07c98e0f97b46db236ef8765108ce7bb484e29dab1da0924de402ff3b84bdd
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • lokibot

C2
  • https://batdongsangiacatloi.vn/.kisskiss/news/school/boy/choo/fre.php

  • http://kbfvzoboss.bid/alien/fre.php

  • http://alphastand.trade/alien/fre.php

  • http://alphastand.win/alien/fre.php

  • http://alphastand.top/alien/fre.php

Signatures

  • Lokibot

    Lokibot is a Password and CryptoCoin Wallet Stealer.

  • Looks for VirtualBox Guest Additions in registry 2 TTPs
  • Looks for VMWare Tools registry key 2 TTPs
  • Checks BIOS information in registry 2 TTPs 2 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Maps connected drives based on registry 3 TTPs 2 IoCs

    Disk information is often read in order to detect sandboxing environments.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe
    "C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"
    1⤵
    • Checks BIOS information in registry
    • Maps connected drives based on registry
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3920
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3716
    • C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe
      "C:\Users\Admin\AppData\Local\Temp\AttachmentPDF.exe"
      2⤵
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:1212

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1212-133-0x0000000000400000-0x00000000004A2000-memory.dmp

        memory/1212-138-0x0000000000400000-0x00000000004A2000-memory.dmp

        memory/3716-139-0x0000000007EF0000-0x0000000007EF1000-memory.dmp

        memory/3716-140-0x0000000007E50000-0x0000000007E51000-memory.dmp

        memory/3716-185-0x00000000070A3000-0x00000000070A4000-memory.dmp

        memory/3716-164-0x00000000098E0000-0x00000000098E1000-memory.dmp

        memory/3716-163-0x000000007E4C0000-0x000000007E4C1000-memory.dmp

        memory/3716-162-0x0000000009520000-0x0000000009521000-memory.dmp

        memory/3716-157-0x00000000093C0000-0x00000000093C1000-memory.dmp

        memory/3716-150-0x00000000093E0000-0x0000000009413000-memory.dmp

        memory/3716-129-0x0000000004B30000-0x0000000004B31000-memory.dmp

        memory/3716-130-0x00000000076E0000-0x00000000076E1000-memory.dmp

        memory/3716-131-0x00000000070A0000-0x00000000070A1000-memory.dmp

        memory/3716-132-0x00000000070A2000-0x00000000070A3000-memory.dmp

        memory/3716-142-0x00000000086A0000-0x00000000086A1000-memory.dmp

        memory/3716-141-0x0000000008380000-0x0000000008381000-memory.dmp

        memory/3716-135-0x0000000007480000-0x0000000007481000-memory.dmp

        memory/3716-136-0x0000000007E80000-0x0000000007E81000-memory.dmp

        memory/3920-116-0x0000000005120000-0x0000000005121000-memory.dmp

        memory/3920-114-0x0000000000850000-0x0000000000851000-memory.dmp

        memory/3920-119-0x00000000051E0000-0x00000000051E1000-memory.dmp

        memory/3920-117-0x0000000005710000-0x0000000005711000-memory.dmp

        memory/3920-118-0x00000000052B0000-0x00000000052B1000-memory.dmp

        memory/3920-126-0x000000000CBC0000-0x000000000CBC1000-memory.dmp

        memory/3920-124-0x0000000006F70000-0x0000000006F9A000-memory.dmp

        memory/3920-123-0x0000000006EC0000-0x0000000006F22000-memory.dmp

        memory/3920-122-0x00000000054A0000-0x00000000054B0000-memory.dmp

        memory/3920-120-0x0000000005080000-0x000000000511C000-memory.dmp

        memory/3920-121-0x0000000005410000-0x0000000005411000-memory.dmp