Malicious PDF — malware analysis report

Static analysis result for SHA-256 80d592d836bc2082…

MALICIOUS

PDF

43.3 KB Created: 2021-05-20 18:36:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 33973662d8c89c3b39a5c63664f93e1a SHA-1: e171b799c354b981bcece87cae6b0b22e6709864 SHA-256: 80d592d836bc2082139002a7cb825606fab36e675af458361f8e772c56cba9fa
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and scam-related content, specifically promising free Robux and game hacks. The document body and embedded links strongly suggest a phishing or scam attempt designed to trick users into visiting malicious websites. No scripts were extracted, but the presence of malicious links and the ML classifier's flagging indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7947

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 https://netcdn.xyz/app/431946152/claim-free-robux-game-hack In PDF document text
    • http://www.sapaengineering.kz/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/is-tiktok-free-on-iphone_GM835599320.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/links-to-get-free-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sapaengineering.kz/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • https://www.micIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off00003279.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3279 26212 bytes
SHA-256: e0f6b6dcbe0b75b3755b00bbc8c181d45fc2ff641c38c8865533b284be7c9d81
font_01_sfnt_off00006fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FC4 2820 bytes
SHA-256: d88f25cfe237a714f996150a11dd8a058f0f7c3e9d1ae91c17b46c10409b6c0b
font_02_sfnt_off00007959.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7959 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_03_sfnt_off0000866b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x866B 18696 bytes
SHA-256: 5cf9f9319346d61d0cee7eea738a99b5b91b4687cc89c43f6f5509699f250cff