Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ac0cca2a3823bf1…

MALICIOUS

PDF

42.6 KB Created: 2021-05-10 23:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 0c6b135d8b7445d14abf0e729cf78c53 SHA-1: 6d92f59211454213b6aab21154e2fd1d4e0c5954 SHA-256: 4ac0cca2a3823bf14414d87f5ffb93acb243fe96b58725964bfa648c8b6c2571
122 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure, designed to trick users into clicking malicious links. These links, such as 'https://netcdn.xyz/app/431946152/roblox-free-items-2021-game-hack', lead to websites offering game hacks, which are likely to host or redirect to further malicious payloads. No scripts were extracted, but the document's structure and embedded URLs strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/431946152/roblox-free-items-2021-game-hack PDF link annotation
    • http://akbidsehati-medan.ac.id/slims7/repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-use-redstone_GM479516143.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/robux-hack-tools_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/roblox-hack-ga_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/withdraw-robux_GM431946152.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/minecraft-ps3-free-download_GM479516143.pdfIn PDF document text
    • http://akbidsehati-medan.ac.id/slims7/repository/lazy-blocks-com-free-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_off00004a83.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A83 24640 bytes
SHA-256: 8ea0d7887dbabb3259e3d595934a005b7e805aca4096dde822d98d974409c9e2
font_01_sfnt_off000082a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A2 18716 bytes
SHA-256: 1ac7dfea826aa1cf6bdd8a8871d75981f44760a1c5f47be9d1d913bfc788d2a8

Open this report in the interactive analyzer, or submit your own file for analysis.