Malicious PDF — malware analysis report

Static analysis result for SHA-256 6788b6e43face79c…

MALICIOUS

PDF

35.0 KB Created: 2021-06-27 21:01:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 0337a181d00c6b9ff6e0285e8c626346 SHA-1: aa61db13f0319dc8e6351e59adfeb2691dd86b54 SHA-256: 6788b6e43face79cbc6895b29273a1f64e3950c5a2cbcf2198ecdf01396ba36e
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting game hacks and cheats. The primary lure is for 'Roblox Glitches And Cheats For Lumber Tycoon 2', directing users to a URL associated with known malicious redirectors. While no scripts were explicitly extracted, the PDF structure and embedded URLs strongly suggest a phishing or social engineering attempt to lure users to potentially malicious sites, likely for credential harvesting or further malware delivery.

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/roblox-glitches-and-cheats-for-lumber-tycoon-2-game-hack In PDF document text
    • http://library.unissula.ac.id/fk/repository/ninja-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/coin-master-free-spins-link-without-human-verification_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-links-2021_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/free-spin-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/free-100-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/free-robux-android-robux-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/roblox-gta-5-money-hack_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/pubg-uc-generator-without-human-verification_GM1330123889.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/hack-de-robux-2021-android-fast_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/how-do-you-hack-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/roblox-hack-ios_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/jailbreak-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://library.unissula.ac.id/fe/repository/are-minecraft-realms-free_GM479516143.pdfIn PDF document text
    • http://library.unissula.ac.id/fk//repository/coin-master-reward-link_GM406889139.pdfIn PDF document text
    • http://library.unissula.ac.id/fk/repository/coin-master-hack-android_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_off00002ea9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EA9 23240 bytes
SHA-256: 84d941b48e285a9b1111f39912b0c38965dd38e90662ac74ded66a2c8dfc8d50
font_01_sfnt_off00006142.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6142 19920 bytes
SHA-256: 4fd7726710588bbc9770aaa8108d09bec006a81d951936a5641ecc639e110360

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