Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd95c9d8ce3c377b…

MALICIOUS

PDF

46.3 KB Created: 2021-05-12 04:16:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a142b49a697fda285a5b1d24cf783768 SHA-1: e47cdaf43657a7207fb6b8ed92559e0bc4992ba8 SHA-256: fd95c9d8ce3c377b7246333c786f537419a039339bbe84b6c66b9858957c2183
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a lure for game hacks and free in-game currency, directing users to a malicious URL. The presence of a fake CAPTCHA or human verification prompt is a common social engineering tactic to trick users into clicking malicious links. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest an attempt to redirect the user to a potentially malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9278

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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.xyz/app/406889139/how-to-hack-coin-master-game-2021-game-hack PDF link annotation
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/free-minecraft-windows-10-with-java_GM479516143.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/grabpoints-robux_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/coin-master-rewards-free-spins_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/robuxmatch-com-free-robux_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/2021-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/free-robux-now_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/hacks-for-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://stikesprimaindonesia.ac.id/perpustakaan/repository/robux-hacks-2021_GM431946152.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ab2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AB2 29976 bytes
SHA-256: 9ef04ded0f03415f06b48936ad5fb0f53340439524ed9cb86ea55a8f2ab06f7c
font_01_sfnt_off00008794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8794 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00009179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9179 18540 bytes
SHA-256: 0dd6564037b1693bc387ec554476f6901470b6523a56a44e31cb3c159dc675b0

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