Malicious PDF — malware analysis report

Static analysis result for SHA-256 00df781fb07a68e6…

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 10:07:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 29d1d8cb9ae2f570e854c0432448455f SHA-1: c81ca505a92145ef8373c455fb76eb40c6a671eb SHA-256: 00df781fb07a68e61bbba26f3a971b2f1601d20ffe4a6184f581c6a398928aa0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure related to free game currency and hacks, directing users to a known malicious redirector. The ML classifier also flagged this PDF with high confidence. The embedded URL is likely part of a phishing or scam campaign designed to lead users to potentially harmful content or further malicious 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.tw/app/431946152/is-it-possible-to-get-free-robux-game-hack In PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/roblox-hackers-list_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-get-stuff-that-cost-coins-free-mpe-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-robux-without-verify_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-free-gift-links-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/minecraft-pe-free-download-ios-no-jailbreak_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-spins-promo-code-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-robux-sites-that-work_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/free-robux-easy_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/how-to-get-800-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/give-me-robux-now_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1surakarta.sch.id/__statics/gudangsoal/files/is-minecraft-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31BE 22012 bytes
SHA-256: 6304aaf3763586b6de02a5af220fcb50350dd03b61c73bac27e4664d6391649b
font_01_sfnt_off0000627d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627D 19168 bytes
SHA-256: f24a5ada971d965804af58b04ee5b9b6367f2e4ca5c866edee18a0a4d3da7d81

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