Malicious PDF — malware analysis report

Static analysis result for SHA-256 a29549b6add1592e…

MALICIOUS

PDF

33.6 KB Created: 2021-07-05 00:52:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: ae9c53cba43c10b768f31b0d72bf2af5 SHA-1: 89c956891c86613d9acd2e913a9f3bdd9bb79739 SHA-256: a29549b6add1592e1d2056a39aa9b8d62c85bfe042729b28399c1ee51ed63eca
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising free game hacks and accounts. The document body and extracted URLs strongly suggest a phishing or scam attempt designed to lure users to malicious sites. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.tw/app/431946152/rich-free-roblox-accounts-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/how-2-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-minecraft-maps-pe_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/blox-fish-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-do-you-hack-for-2021000-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-tool-no-survey_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-svg-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-free-rs-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/when-do-hackers-hack-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/ro-ghoul-script_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/snippet-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pokemon-go-free-clothes-code_GM1094591345.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-spins_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
font_00_sfnt_off00002f25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F25 21504 bytes
SHA-256: 46b2af8ad3e274bc19196a3e4f9f5618af3ca5949437d1490db4a70e2a029df1
font_01_sfnt_off00005e17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E17 19180 bytes
SHA-256: 7ad467954a37d85bbda018f87e809ccdb22d1baca9183a61aeb3568020ffc813

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