Malicious PDF — malware analysis report

Static analysis result for SHA-256 fba91974c2dd1a5b…

MALICIOUS

PDF

51.1 KB Created: 2020-10-08 02:54:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 93f7ed34087224d2c5d63925a280318c SHA-1: e8562bbd4032482c60410ee5aaa42ee81e596ce6 SHA-256: fba91974c2dd1a5ba53dad76ac26960d474a14a9c9d71290521bc2d0fbcff2da
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://ttraff.club/pify?keyword=run+as+date+not+working In PDF document text
    • https://site-1039517.mozfiles.com/files/1039517/34988964477.pdfIn PDF document text
    • https://site-1039251.mozfiles.com/files/1039251/ropiwel.pdfIn PDF document text
    • https://site-1040374.mozfiles.com/files/1040374/27705395367.pdfIn PDF document text
    • https://site-1036743.mozfiles.com/files/1036743/76064307909.pdfIn PDF document text
    • https://site-1048550.mozfiles.com/files/1048550/sofelibuwimezij.pdfIn PDF document text
    • http://nofikogig.cheetahcleaning.com/uploads/1/3/1/3/131379844/luburariwux_fakudekuba.pdfIn PDF document text
    • http://files.nataliepascophotography.com/uploads/1/3/1/1/131164021/zedadigegudejon.pdfIn PDF document text
    • http://files.itsmypartycelebration.com/uploads/1/3/1/4/131453348/1415540.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/1/0483/4292/5461/files/the_art_of_being_normal_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0500/2179/3942/files/bojejelulazibakixirus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/4610/3961/files/92515536873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4224/2709/files/butunedomulezenedigixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5382/4677/files/the_lords_prayer_worksheet_ks2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4719/7594/files/mtd_riding_mower_parts.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8886/2614/files/what_is_the_charge_of_zinc_dichromate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1360/3491/files/roland_barthes_mythologies_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0483/9407/6318/files/22518946795.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8433/2710/files/warudorigoja.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008970.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8970 5124 bytes
SHA-256: eaa881816310959e26a58463a64f37d134dd8d8c0202279307734c52caff93f2
font_01_sfnt_off00009b06.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9B06 10672 bytes
SHA-256: 3bb11f2e51d9bb61a03d823dfa3e094d101f77432b82491a75ed3eebcb394209

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