Malicious PDF — malware analysis report

Static analysis result for SHA-256 2dfcacd379458074…

MALICIOUS

PDF

41.6 KB Created: 2021-05-12 02:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 74d6aa06b01db04d6738d60e8e539f22 SHA-1: d592994d24d1ff36910342c5f205b2f30ef89b08 SHA-256: 2dfcacd3794580748185423f37b80826ddb4ff92789b2cd527cd7d959d188034
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links that redirect to malicious infrastructure, specifically targeting users with lures related to game hacks and free currency. The primary link, https://netcdn.xyz/app/431946152/get-free-robux-game-hack, is identified as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content.

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 https://netcdn.xyz/app/431946152/get-free-robux-game-hack In PDF document text
    • http://porownaj-laser.pl/images/coin-master-daily-gifts_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-levels_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/free-robux-just-click_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/bux-gg-robux-free_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-spin-link-hack_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-hack-software_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/today-coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/roblox-demon_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-free-spins-and-coins-generator_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-free-link_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/100-free-spins-coin-master-link_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://porownaj-laser.pl/images/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://porownaj-laser.pl/images/free-robux-gift-card-codes_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://porownaj-laser.pl/images/how-to-get-free-coins-on-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_off00004702.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4702 25404 bytes
SHA-256: 357a34e849f2193f958092e335f63dba9a10c1ce085e4abc8a0f873363b13ebd
font_01_sfnt_off0000808c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x808C 18120 bytes
SHA-256: 79ac164380d838bf2943c127f808202d45f8751c05dbd036140e6fb9b1b49848

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