Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4e6f794edffdcbe…

MALICIOUS

PDF

43.0 KB Created: 2021-05-11 01:32:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-24
MD5: 9c2a92314fa639193f0828f6028d85a4 SHA-1: f06e3b714b701d731b74193e1c762765b4749997 SHA-256: d4e6f794edffdcbe8361564127d7404a0bef99f7a3e2a60b644b866d1484bfe5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links designed to lure users into clicking on them by promising free game currency or hacks. These links redirect to known malicious infrastructure, indicating a phishing or scam attempt. The document's content and embedded links strongly suggest a social engineering tactic to drive traffic 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/431946152/free-robux-no-verify-2021-game-hack In PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spins-app_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/minecraft-complete-handbook_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-minecraft-hosting-24-7_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spins-no-generator_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-faces-on-roblox_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-robux-rewards_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/minecraft-client-download_GM479516143.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/do-robux-generators-work_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • https://i-photo7.com/image/data/files/coin-master-free-spins-and-coins-blogspot_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_off000049e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x49E7 25404 bytes
SHA-256: d872b9040122a81f5f0e3a097f5f5ef8a16076da05425dac668cd195fb9da516
font_01_sfnt_off000083d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D7 18848 bytes
SHA-256: 9f147bd5bf62c652754f553854fad05fac0b8df637ce3021f80b740c61e7be7f

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