Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ae29e16c85382af…

MALICIOUS

PDF

44.1 KB Created: 2021-05-12 22:44:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: c69e1431522844b8cb80c4ca43d306ea SHA-1: a5496bc136592dd628ed8ee61de48472faedbb2a SHA-256: 9ae29e16c85382af9c5a55c6003af0a9e3670047fb2822be129edb2350680c00
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF contains multiple links to known malicious redirectors, disguised as 'free generator' or 'game hack' lures. The primary link, https://netcdn.xyz/app/431946152/easy-ways-to-get-free-robux-game-hack, is a clear indicator of a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links suggest it's designed to exploit user interest in free in-game items to redirect them to potentially harmful sites, likely leading to further malware downloads or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/easy-ways-to-get-free-robux-game-hack In PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-link-today_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/hacks-para-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coun-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/microsoft-rewards-robux_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-piano-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-hack-programers_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-group_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-games-download-free_GM406889139.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
stream_003_off00004902.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4902 27084 bytes
SHA-256: 75302ce7f11409fda81070f4b7f008eb04e586ee6e197ae9853cef8ce54aa43e
font_01_sfnt_off00008883.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8883 18724 bytes
SHA-256: ff2b5f5648817baecf5754646eae61914eefadf3856a555e8e6cbc13d6b08405