Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2fa5addde7ff5f9…

MALICIOUS

PDF

35.0 KB Created: 2021-06-27 12:23:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-25
MD5: 88f76ac9185e2891b5c75d5bab6cd6f9 SHA-1: 0a26fccb243551f69b6890ca1619a5a7ee89cfc5 SHA-256: f2fa5addde7ff5f9e423b6cb584f3cd94cd30cdbf72d17f0093e335e8c64beef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The embedded URLs, such as 'http://netcdn.co/app/431946152/este-hack-de-robux-game-hack', are designed to trick users into downloading potentially malicious files or visiting phishing sites. No scripts were extracted, but the document's structure and embedded links strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/este-hack-de-robux-game-hack In PDF document text
    • http://lib.untad.ac.id//repository/minecraft-for-free-apk_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/oh-yeah-yeah-shirt-on-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-phantom-forces-uncopylocked-how-to-make-all-guns-free_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-hack-blog_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-hacking-news_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-brick-master-cheat-video_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coinmaster-twitter_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-card-codes_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/mcpe-master-free-coins_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/natural-disaster-roblox-cheats_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-paid-hacks_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/how-to-get-free-robux-generator_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_off00003378.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3378 22004 bytes
SHA-256: d91cd7036419dce4286a1f81297014d886e7c248d6909b83698b724170777d5a
font_01_sfnt_off000063cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63CC 18996 bytes
SHA-256: be654c3a1ce56f3268eab1be6ba3a60c59abcb13b0300c85c5561c335ee0f2f0

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