Malicious PDF — malware analysis report

Static analysis result for SHA-256 94baaa0fe0c69e74…

MALICIOUS

PDF

35.1 KB Created: 2021-06-19 00:15:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: a16201050d7000822acade5df0decf81 SHA-1: 86595a6d707d65289f480252e00fb797f029eb8e SHA-256: 94baaa0fe0c69e74ae688200e113055699cdaaba744b80287641dc861e3131a2
160 Risk Score

Malware Insights

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

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/431946152/free-robux-mining-game-hack. The document body and heuristics suggest a lure for game-related cheats or currency, likely intended to lead users to a phishing or malware download site. No scripts were extracted from this sample.

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/free-robux-mining-game-hack In PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/minecraft-free-download-ipad_GM479516143.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/flip-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-hack-surf-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-get-minecraft-for-free-on-chromebook_GM479516143.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-tiktok-followers-instantly_GM835599320.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/lots-of-robux_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-tiktok-views_GM835599320.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-not-patched_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-roblox-games-for-guest_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-free-download_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-do-you-get-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/coinmasterfree_GM406889139.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/robux-free-c_GM431946152.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-minecraft-accounts-2021_GM479516143.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_off00003119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3119 22888 bytes
SHA-256: 75ca7be1e9eadb4840b337d16b97b77477e199b8ada8f27ee921b1aef916de9f
font_01_sfnt_off0000645b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x645B 19032 bytes
SHA-256: 8f46f730c3fe026e28f98b58f954ee9d7f0db27983e3e7480f810279dba815eb

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