Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb35090acb0c3430…

MALICIOUS

PDF

46.3 KB Created: 2021-05-14 16:47:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: b407d12d43ca706eefef377331117318 SHA-1: 67905d405a2402bb0679e5df041aa6fee5fe4696 SHA-256: fb35090acb0c34304880914797908a00f790d6d3f96807ce90822dd3da6db2b9
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document is designed to lure users into clicking on links that appear to offer game hacks or generators. These links redirect to a large number of other PDF files hosted on a link farm, likely to increase search engine visibility for scam-related terms. The document's primary function is to act as a gateway to these malicious link farms, potentially leading users to further malicious content or scams.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8696

Heuristics 5

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/406889139/real-coin-master-hack-2021-game-hack PDF link annotation
    • https://creationegyptco.com/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/can-you-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-army-free-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-apk-hack-35-8_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/roblox-e-free_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/hack-coin-master-site-rssingcom_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/coin-master-links-to-get-free-spins_GM406889139.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://creationegyptco.com/userfiles/files/free-robux-without-verify_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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004bf4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BF4 26440 bytes
SHA-256: bacb93428486723a35bcef3f2505fbc4ea2329d950de9a395d102eed5e419b16
font_01_sfnt_off000088ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x88EE 2840 bytes
SHA-256: 3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676
font_02_sfnt_off000092a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x92A0 18192 bytes
SHA-256: b4c41a46567064d4197865bd819757eb36d0b1d423a991f81f4246b2a9d75138

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