Malicious PDF — malware analysis report

Static analysis result for SHA-256 aaffb70e77770f3f…

MALICIOUS

PDF

44.3 KB Created: 2021-06-04 02:31:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: faa87c7a6b88b616feb0ccb0c1b6ef6a SHA-1: a2dc8c9c5bc6ed2faf8133cc89d9333efd3c5247 SHA-256: aaffb70e77770f3fbf940b11b04d1292c89dda0ad2a71ab7c592467e63656622
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free generators, directing users to a malicious URL. This suggests an attempt to trick users into visiting a site that likely hosts further malware or phishing content. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/479516143/will-minecraft-ever-be-free-game-hack PDF link annotation
    • http://pustaka.fti.unand.ac.id/repository/pubg-uc-2021_GM1330123889.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-minecraft-addons_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-minecraft-skin-creator_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-app-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/roblox-free-login_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-pe_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/claim-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-spin-coin-master-iphone_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/mcpe-116_GM479516143.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/free-robux-please_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/coin-master-free-spin-trick_GM406889139.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id//repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://pustaka.fti.unand.ac.id/repository/hacks-and-cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000053ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53EF 24364 bytes
SHA-256: 731477f76a157d91cbfc167029a0afedeee21d0886eaa100baf574b0d6a4d250
font_01_sfnt_off00008b0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B0A 18168 bytes
SHA-256: 211f984956e508daade61d8eb22376d96f7c6cd7f6bdb04149b2d856b5b09752

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