Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fc6a9567a151626…

MALICIOUS

PDF

48.0 KB Created: 2020-10-03 02:03:10 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: a7b4840907436f4ef93c8c8dcbec4a91 SHA-1: 55be6255148daa73bdfb4492fc0d20f8c5ee2d79 SHA-256: 3fc6a9567a151626c03759c35532508240e8fa574d57bde0696ac36096864fb9
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://gettraff.ru/pify?keyword=swann+mydvr+software In PDF document text
    • http://files.llbrhs.com/uploads/1/3/0/7/130740112/100ecdde60.pdfIn PDF document text
    • http://files.hasarchitecture.com/uploads/1/3/1/3/131384778/legavovagipixuta.pdfIn PDF document text
    • http://files.coppercolorists.com/uploads/1/3/2/6/132680808/1180750.pdfIn PDF document text
    • http://files.ridgefieldgirlscouts.org/uploads/1/3/0/8/130873949/17c976b77654f.pdfIn PDF document text
    • http://muvidi.aplifefitness.com/uploads/1/3/0/7/130738720/8518461.pdfIn PDF document text
    • https://site-1036803.mozfiles.com/files/1036803/duvukologiralewa.pdfIn PDF document text
    • https://site-1038514.mozfiles.com/files/1038514/60795576870.pdfIn PDF document text
    • https://site-1041289.mozfiles.com/files/1041289/94656040655.pdfIn PDF document text
    • https://site-1036735.mozfiles.com/files/1036735/46676558353.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1596/8667/files/tebugapepadadodevop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/widexubemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1530/6405/files/cloud_peak_energy_bankruptcy.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0466/6402/4229/files/celula_eucariota_vegetal_caracteristicas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7614/1731/files/sugimutapo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/0121/9752/files/skyrim_se_interesting_npcs_marriage.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/vifegerugonabuvaturame.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0480/2071/7717/files/zimil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8221/1735/files/the_book_of_disquiet_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn 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
font_00_sfnt_off000069cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x69CC 5376 bytes
SHA-256: f9150b8c921a79073a220145346e71010689dcc0186edc7eaaa03961c426bcf3
font_01_sfnt_off00007c13.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C13 2024 bytes
SHA-256: e4ff89150e537302dd5a024495bca914109c80a41c40113e7bac1c5cc99dba22
font_02_sfnt_off000085af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85AF 14216 bytes
SHA-256: 9f36a09c1b87e48d64821bce08ba9f288765252a7f0a82c94fed07c2046e0a76

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