Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8eb2cdeaf6fa0cf…

MALICIOUS

PDF

40.3 KB Created: 2020-08-04 04:28:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 607311ebd2222627b907ddd758fc5f6f SHA-1: fc37e7d040c002731258dbc477b34474e4dc07cd SHA-256: d8eb2cdeaf6fa0cfbb5c1f17c81abad2088d4adaa56631b5911974eac4fc3e5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it points to malicious infrastructure. The document body, though heavily obfuscated, contains text related to 'Mcdonald s menu with prices sa pdf' and includes the malicious URL. This suggests a phishing lure, attempting to trick users into visiting the redirector which likely leads to further malicious content. The PDF_SEO_LINK_FARM heuristic also indicates a large number of outbound links, further supporting a distribution or redirection scheme.

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=mcdonald+s+menu+with+prices+sa+pdf In PDF document text
    • http://files.thecandyshopprints.com/uploads/1/3/1/6/131637147/1162273.pdfIn PDF document text
    • http://files.healthycleaningsolutions.com/uploads/1/3/0/7/130740033/juxiga_tadekijakatuki_fiwobovoweme.pdfIn PDF document text
    • http://files.allergyclinicmalta.com/uploads/1/3/0/7/130776542/5819618.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/1/0434/7976/1061/files/pakepaxamelema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4877/8400/files/71256840208.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8544/6824/files/75507218240.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9292/6883/files/gelofifeworikul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4676/2656/files/lelelew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4444/5092/files/weight_watchers_simple_start_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7252/0352/files/topozalekaguzutewizaguwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0821/2638/files/lolalopezujowatufeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8166/2628/files/wapixawegonurowas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/95009732732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1539/5738/files/turn_list_into_dataframe_r.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E1A 5492 bytes
SHA-256: 154ef3a60dc34d6be4c7ddebbfbc04f850266b4445f2a8368466af6d4a8a2025
font_01_sfnt_off000070b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70B9 10524 bytes
SHA-256: 91613f0d1866f3a4051f02bdd2b7f43a4cc04af79255bb7142e2bf014ab63e27