Malicious PDF — malware analysis report

Static analysis result for SHA-256 d787f5e4badfb941…

MALICIOUS

PDF

33.8 KB Created: 2021-06-29 01:12:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 5b90293e458e3a7e679c24379822e44c SHA-1: 82863401d800ea076c77f8bcfbdff99ff65180a0 SHA-256: d787f5e4badfb94174cef8ae95b477d4238ce05ae73bd15ce25128ba92affb71
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The primary link, http://netcdn.co/app/431946152/roblox-hack-skript-game-hack, is flagged as malicious. The document's content and embedded URLs suggest it is designed to trick users into downloading potentially unwanted or malicious software by promising game cheats or in-game currency.

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/roblox-hack-skript-game-hack In PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-master-hack-pc-cheat-engine_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/dev-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/pubg-uc-600_GM1330123889.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/nazi-roblox-hack-pastebin_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/auto-clicker-roblox-free-download_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/minecraft-windows-10-edition-unlock-full-game-free_GM479516143.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-roblox-followers_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-hack-roblox-with-inspect-element-2021_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-make-cheat-engine-undetectable-by-roblox_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/coin-spin_GM406889139.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/113-hacked-client_GM479516143.pdfIn PDF document text
    • https://sparkthis.org/ckfinder/userfiles/files/games-roblox-for-free_GM431946152.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_off00002e93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E93 21900 bytes
SHA-256: 32568626bd9533e8a03184797591541dd200ac4b0068f079ac01b7267cb75dc5
font_01_sfnt_off00005f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F09 19056 bytes
SHA-256: 2f64ff53f944d6116681b0841b9d86cba9ba913885552a8a2c1a421cd261b8a1

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