Malicious PDF — malware analysis report

Static analysis result for SHA-256 679f69e5b4e2c602…

MALICIOUS

PDF

36.2 KB Created: 2021-06-29 19:15:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 1fe102cfdd6da0c90a8dc59f4355ce94 SHA-1: 15af4b2904af8251b5508a3df932491c10dad0a7 SHA-256: 679f69e5b4e2c60288c9e718e733f8e0c8cda54100b742efc15641ccde1b971c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including one identified as a malicious redirector. The document body and heuristics indicate a lure for game hacks and generators, specifically targeting Roblox and Coin Master. The presence of embedded URLs and the nature of the lures suggest an attempt to trick users into downloading malicious payloads or visiting phishing sites.

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/how-to-download-roblox-cheat-game-hack In PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-tool-without-verification_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-to-get-creative-mode-in-minecraft-server-hack_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/robuxmatchcon_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-hacks-for-epic-minigames_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/hack-de-roblox-para-atravesar-cosas-facilmente_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/noob-invasion-roblox-get-free-kills_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-can-you-get-free-robux-on-laptop-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-roblox-account-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-16-04-19_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/free-ways-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/is-bloxburg-roblox-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_off00003373.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3373 23136 bytes
SHA-256: 8e96d8f95834cdffa174a20a26a6d54e9d496402b311ba735a6dbd9558710136
font_01_sfnt_off000067b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B7 19264 bytes
SHA-256: 93c7fa60268ecc16633a0568aa190f62a531aab1bb047fd2df13d5ff816dc2c9

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