Malicious PDF — malware analysis report

Static analysis result for SHA-256 be6679d804e192b8…

MALICIOUS

PDF

41.7 KB Created: 2021-05-11 07:09:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 19ff16746644e4341062decf239941b2 SHA-1: a116fc6a2c27ae9856766c0f52ca811c1f26ceac SHA-256: be6679d804e192b8558c4a2b1e84eb232310b698cdf8261347a5a70636b89b44
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as generators for free game items or hacks. The primary malicious link identified is https://netcdn.xyz/app/479516143/minecraft-realms-free-game-hack. The document's structure and embedded links strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-realms-free-game-hack In PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-mod_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/hack-coin-master-android-game_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/huskybuckscom-free-robux_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/www-rbx-com_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/optifine-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/robux-free-gift-card_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-free-spins-iphone-2021_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-free-foxy-food_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-daily-free-cards_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/minecraft-hacks-18-9_GM479516143.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/coin-master-heaven-daily-free-spins-and-coins-links_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/how-to-hack-coin-master-game-without-root_GM406889139.pdfIn PDF document text
    • https://cogp.greentrade.org.tw/image/data/files/free-roblox-printables_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_off00004a06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A06 24528 bytes
SHA-256: 81bba2f19053c43e3b268c44966b383682d4a83391caac2e46961aa86691ddb6
font_01_sfnt_off00008203.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8203 17900 bytes
SHA-256: badbc394cd8954733b164be5cc8c6ff402afbb9d7774d644eb4a8191a91f4c18

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