Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e17cf1e1807172f…

MALICIOUS

PDF

35.8 KB Created: 2021-06-28 23:26:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 1d180f8edba7be70edadcb2f7bcba3d2 SHA-1: 37d8ae975b158e9e69c318b7d09339ecda0cead8 SHA-256: 1e17cf1e1807172fed83b2935973db808b83a943c6c36c3d6bc253c3cbd43406
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and sites offering game hacks and cheats. The heuristic firings indicate that these links are designed to lure users into clicking, likely leading to further malicious downloads or phishing attempts. No scripts were extracted, but the document's structure and embedded URLs strongly suggest a social engineering attack.

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-vip-server-roblox-saber-simulator-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-legit-no-scam_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-sparkle-wings-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/dumptruck-simulator-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-ot-get-free-robux-not-clickbait_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-dungeon-quest-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-electric-state_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-stuff-dungeon-quest-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-skywars-money-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-daily-spins-2021_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-win-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/rbxboost-earn-free-roblox-robux-by-completing-surveys_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-game-cards-free-pin_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/como-hackear-coin-master-gratis_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-royale-high_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robloxcom-robloxplay-now-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-safe-download_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-bandit-simulator-hacker-crate_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-app_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
stream_002_off000030e8.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30E8 23096 bytes
SHA-256: 4f2d84cf3e06c4dc444d6b83b665c918422920fdf0f033134cb940c76a1fa711
font_01_sfnt_off00006517.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6517 19696 bytes
SHA-256: 8cddf444e6f812e31b48388394eec1ba52903711ec4ef22a9517c8948876e477

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