Malicious PDF — malware analysis report

Static analysis result for SHA-256 adb90566a538983d…

MALICIOUS

PDF

35.7 KB Created: 2021-06-22 01:48:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 46a32294775a941406ab5090a927bb02 SHA-1: 548017bc0a426569a5894714cfa3d925ac334bb5 SHA-256: adb90566a538983d32e7e397e5ccce9a67e83bdbd87519578000034367c318f9
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs, including one specifically identified as a 'free generator / game hack' lure. The document body also contains text related to obtaining free TikTok fans and links to various game-related hacks. This suggests the primary purpose is to redirect users to potentially malicious websites, likely for phishing or further malware distribution. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.co/app/835599320/how-to-get-free-tiktok-fans-game-hack PDF link annotation
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/711-roblox-hacker_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/master-coin-hack-mod_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/one-punch-man-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/tiktok-followers-for-free_GM835599320.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-cheat-engine-trainers_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/pokemon-go-free-promo-codes-2021_GM1094591345.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/minecraft-account-hacked_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/cerberus-hack-roblox-download_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003563.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3563 23148 bytes
SHA-256: ae9c1ae37bfdfa6b4c9845feab3c161e3ad183b318ec9e419f3df1ec15ce9087
font_01_sfnt_off00006966.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6966 18136 bytes
SHA-256: 222eb08edeedde1689b759aacda99c23c4abb9fb81db3950380ec99717b0bd03

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