Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f76f20895b2e372…

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 21:44:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 9246a807668e52dd86dfecfe2e26666f SHA-1: 182f032c0479c43d61407422fe45b721b2eca2b9 SHA-256: 9f76f20895b2e37211e322d5b67ded721e6d208e2ec2f1433ec9846449a79b05
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document contains multiple embedded URLs that lead to known malicious redirectors, disguised as game hacks and generators. The primary lure directs users to 'http://netcdn.co/app/431946152/cheats-roblox-mine-simulator-julio-2021-game-hack', which is flagged as malicious infrastructure. The document's content and structure strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

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/cheats-roblox-mine-simulator-julio-2021-game-hack In PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/hack-para-atravesar-paredes-en-roblox_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/does-roblox-have-free-snacks_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/roblox-shinobi-life-cheat-engine_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/roblox-cheat-engine-money-hack_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/free-tiktok-app_GM835599320.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/roblox-free-item-codes_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/free-sonic-costume-roblox_GM431946152.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-free-skins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-link-app_GM406889139.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.misceren.com/home/misceren/public_html/upload/files/coin-master-collect-today-free-spin_GM406889139.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_off00002ff5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF5 21860 bytes
SHA-256: 0b2c45f622ce77ef55067a5dbc485626dd505d46d66a76a5c9952f42c55dbcca
font_01_sfnt_off00006016.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6016 20040 bytes
SHA-256: 6987448858bc2ec81cc51e48a0513145a78b88712bede13ad0e76507b583bf35