Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed5aef60d54c1681…

MALICIOUS

PDF

41.8 KB Created: 2020-10-08 06:29:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 08da1d34a45de70d2aed5078c8a7bd18 SHA-1: 7ef68d69ad44ba9436ef0c1e8b76024a5d5cb81d SHA-256: ed5aef60d54c168191ffd35adcf960b91a7906d71943cb92b4716650ab5ed79e
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://ggtraff.ru/strik?keyword=photo+composition+worksheet In PDF document text
    • http://pomaripiv.bookworldtravel.com/uploads/1/3/2/6/132682866/xomutijaxexop.pdfIn PDF document text
    • http://files.alakazamtravel.com/uploads/1/3/2/6/132681066/9811e5.pdfIn PDF document text
    • http://files.mandysfashions.com/uploads/1/3/1/1/131164568/5892850.pdfIn PDF document text
    • http://files.truccoaustralia.com/uploads/1/3/1/4/131437100/108677.pdfIn PDF document text
    • http://files.rsdouglasrealty.com/uploads/1/3/0/7/130739779/6207631.pdfIn PDF document text
    • https://site-1039465.mozfiles.com/files/1039465/21206862145.pdfIn PDF document text
    • https://site-1039688.mozfiles.com/files/1039688/pagenepojozagoxa.pdfIn PDF document text
    • https://site-1036754.mozfiles.com/files/1036754/ximekizudolazomaxonato.pdfIn PDF document text
    • https://site-1043475.mozfiles.com/files/1043475/58581018209.pdfIn PDF document text
    • https://site-1037069.mozfiles.com/files/1037069/midamujimilamuvarasuj.pdfIn PDF document text
    • https://site-1037240.mozfiles.com/files/1037240/32367146408.pdfIn PDF document text
    • https://site-1043053.mozfiles.com/files/1043053/zazogozeduridotumik.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/1/0437/8119/3885/files/xaruvumodotamonexamujis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5719/3895/files/kitsap_county_food_handlers_permit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6176/4245/files/relationship_between_ownership_and_sense_of_self_examples.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/gewidakutoxef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6213/0853/files/tumawivifajinolutefemid.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_off0000664a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x664A 5088 bytes
SHA-256: 50dba638468a3edbb3cf58a153b38de327370a8f199c2d4306bb943951f37022
font_01_sfnt_off00007780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7780 10140 bytes
SHA-256: 17c908d3eb4f16028f1c37d398f79bca976ec016016d88076a5ef94262c50e92

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