Malicious PDF — malware analysis report

Static analysis result for SHA-256 aec68adf6171261f…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 04:45:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-17
MD5: 9e8df89e8127e0f3d4b9fd8c316b6ea2 SHA-1: 314ac5c2f142d180b4054c56304a884e33ae6195 SHA-256: aec68adf6171261f2e006e23f922ac0dfea322f994e0cbd738d2feb86970a767
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.ru/pify?keyword=ember+spirit+guide+dota In PDF document text
    • http://files.lgeorgescanton.com/uploads/1/3/1/8/131872055/tunalalox-pugexas.pdfIn PDF document text
    • http://files.reddchestvirtualsolutions.com/uploads/1/3/1/4/131437322/motev_rurowipupavu.pdfIn PDF document text
    • http://files.firefighting.co.uk/uploads/1/3/1/0/131070212/7193195.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/1/0430/4653/5322/files/letubefepetagumefije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2496/5019/files/17013716013.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0501/6226/files/brady_emergency_care_12th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3710/6087/files/bass_guitar_lessons_chords.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3993/2064/files/xaxikitupamerozarutawaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0905/6668/files/gopekojepuxapemu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/33542975844.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/32790782706.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7062/7735/files/tepexovixajo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4969/7959/files/lisavamos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9928/1821/files/sumuzelekojeputad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/7241/6931/files/14218700014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7780/3931/files/bixum.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 2

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_off0000646c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x646C 5344 bytes
SHA-256: f369999e1490d06b2cfd9ffe3a0db035dc80f8982ab828eb80e1e1904160dba4
font_01_sfnt_off00007671.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7671 9956 bytes
SHA-256: 8a2553946469fb62994393d8007ce586b43b8bf255f6797b28a8d0eacb276b6f

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