Malicious PDF — malware analysis report

Static analysis result for SHA-256 0222fdedaf0ed73f…

MALICIOUS

PDF

37.0 KB Created: 2021-07-22 04:20:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: f69d48a073d8ba0e39754bb325b9d69e SHA-1: 3762633f1dab2ef77bb79800ec543bc06fe09c13 SHA-256: 0222fdedaf0ed73f52bc191e0126cb8170b410c2894fea43ceb763dda9e0d6b4
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised with lures like "free Robux" and "game hack". The document body and embedded artifacts suggest a social engineering attempt to drive traffic to these malicious sites. The primary goal appears to be redirecting users to potentially harmful content or further malicious downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.tw/app/431946152/free-robux-websites-that-actually-work-game-hack In PDF document text
    • http://daksz.hu/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://daksz.hu/images/www-free-robux_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/robux-gift-card-free_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/free-robux-working_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://daksz.hu/images/free-tiktok-likes-no-survey_GM835599320.pdfIn PDF document text
    • http://daksz.hu/images/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://daksz.hu/images/how-to-get-followers-on-tiktok-for-free_GM835599320.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_off000036c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x36C3 23280 bytes
SHA-256: 2a6686050d5baa7e29123f4813816d8d8bec22e593ddec160d46095fdf2c1b33
font_01_sfnt_off00006b5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5B 19440 bytes
SHA-256: 6ca5a42b15f03ce8f0527a9b99e2a0be619c538984e0635b30c2c3344ed7d0ad

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