Malicious PDF — malware analysis report

Static analysis result for SHA-256 559278949770a7ce…

MALICIOUS

PDF

42.2 KB Created: 2020-09-30 16:56:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 9eb51a6cc41584649ed3ee8043f38a18 SHA-1: d1a8395d6c569279d06073df6cecf089d52e6a01 SHA-256: 559278949770a7ce3da2acffc4ac459f5950c509d953571ae1b27cdac594ae3c
234 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • MFA / one-time-code harvesting lure high SE_MFA_LURE
    Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
  • 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://cctraff.ru/strik?keyword=romeo+and+juliet+anticipation+guide+pdf In PDF document text
    • http://files.midatlanticmotionpictures.com/uploads/1/3/1/4/131438111/kawijedoxipit_moxogurux.pdfIn PDF document text
    • http://files.deannalsletten.com/uploads/1/3/1/4/131455328/linudavozo.pdfIn PDF document text
    • http://powotuniw.dominiquemarguerite.net/uploads/1/3/1/4/131438428/zuzipatoguxabewux.pdfIn PDF document text
    • http://files.jenkinsfireplaces.co.uk/uploads/1/3/1/4/131410939/117666.pdfIn PDF document text
    • https://site-1037202.mozfiles.com/files/1037202/dojarinil.pdfIn PDF document text
    • https://site-1036632.mozfiles.com/files/1036632/dulowowevekufamu.pdfIn PDF document text
    • https://site-1037122.mozfiles.com/files/1037122/tagavuwoje.pdfIn PDF document text
    • https://site-1036932.mozfiles.com/files/1036932/zubibenezadukoxiduxanir.pdfIn PDF document text
    • https://site-1037129.mozfiles.com/files/1037129/49601267840.pdfIn PDF document text
    • https://site-1037115.mozfiles.com/files/1037115/63287237746.pdfIn PDF document text
    • https://site-1036629.mozfiles.com/files/1036629/10355545045.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/1/0481/3566/7875/files/68542757398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6045/3791/files/65973646403.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0876/1764/files/89863768185.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0459/2959/5047/files/bulbar_form_of_motor_neurone_disease.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/3660/9182/files/pimebobifudadederive.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_off000065e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65E9 5284 bytes
SHA-256: eaafc318c7fe1332b96113344bbf20394d117f9bca93e3b2ce5e6bdbaae13c15
font_01_sfnt_off000077e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77E5 10532 bytes
SHA-256: a3736bb0f19173d3cff4af5507c402b3f2a942b8401b6e695a2d6bd646617ca2

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