Malicious PDF — malware analysis report

Static analysis result for SHA-256 e08542e2d2e6ae4b…

MALICIOUS

PDF

42.7 KB Created: 2021-05-14 08:21:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: f79a9625c81c2e1ddb00c83db9cd4d74 SHA-1: a989d0055350e20c3dbfcbedd829d5e4f8af459f SHA-256: e08542e2d2e6ae4bfb1fdec0ec6998378da426df7b643ff263fac1143ad97fd5
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that point to known malicious redirectors and scam-related content, such as 'free Robux' generators. The document body and heuristics indicate a lure to click these links, which likely leads to further malicious content or malware downloads. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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-website-game-hack In PDF document text
    • https://tena-g.hr/files/coin-master-fan_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/coin-master-hack-no-verification-no-signup_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-free-spins--spins_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-no-download_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/is-there-a-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-snacks-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/blogspot-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/how-to-get-free-spins-on-coin-master-2021-ios_GM406889139.pdfIn PDF document text
    • https://tena-g.hr/files/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
    • https://www.tena-g.hr/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.tena-g.hr/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/how-to-get-free-robux-on-computer_GM431946152.pdfIn PDF document text
    • https://tena-g.hr/files/free-robux-no-email_GM431946152.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_off00004886.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4886 26416 bytes
SHA-256: 749f85a37f685b51b9c6269753fefacaef6a562fca71a568e433c435e8b246ea
font_01_sfnt_off00008410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8410 18436 bytes
SHA-256: 681a9996b59f8391b7cc91011c49ef4e68754eb5dc3ad8da1029f3e9c8ab03b4

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