Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd931182fd8ecdfe…

MALICIOUS

PDF

35.6 KB Created: 2021-07-09 22:31:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6d03ee1c3548fc3909adc638a40ea28f SHA-1: 7018934fef518e175688fb626bf12f555cb22656 SHA-256: dd931182fd8ecdfed79fb10ca551f93e414dab0308b11e73fb8f894ba5ab174e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a lure for free game currency, directing users to a known malicious redirector. The document body and embedded URLs suggest a phishing attempt related to popular online games like Roblox and Coin Master. The ML classifier strongly indicated maliciousness, and the presence of a redirector link points to a likely attempt to download further malicious content or lead the user to a credential harvesting page.

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/how-to-get-free-robux-real-2021-game-hack In PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-hack_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-minecraft-account-reddit_GM479516143.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/hacks-for-roblox-script_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/script-hack-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/robux-rewards_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-get-free-robux-no-hack-or-cheat-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/extra-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/free-white-hair-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtsn2bogor.web.id/__statics/gudangsoal/files/how-to-hack-roblox-on-ipad_GM431946152.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_off0000326f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x326F 22624 bytes
SHA-256: 9c4148eae3ea096d6dd8f083f31ef4291e5b05ce4770eae6ed9e50812119f14d
font_01_sfnt_off000064e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64E2 19460 bytes
SHA-256: 287edc354311a95f8fbab0bfcc42ad27fed3020b8195515396c9c700e8e7725a

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