Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cbeb7436d93bb7f…

MALICIOUS

PDF

42.4 KB Created: 2020-08-03 18:00:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1cfc3f1e546a9aebef77a0e1816e6be9 SHA-1: 5bca60c7b7a1f048b3532179eb31c5eb546bf4d9 SHA-256: 2cbeb7436d93bb7fe26a01ca5087fb9cf106b259ffd036be568a84a9a5ec6d53
194 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting PDF files, suggesting a link farm for SEO manipulation. One prominent link, 'https://ttraff.ru/pify?keyword=best+astrology+books+pdf', is identified as a malicious redirector. This indicates the document's primary purpose is to lure users into clicking malicious links, likely for further exploitation or phishing.

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=best+astrology+books+pdf In PDF document text
    • http://files.focusfivedesigns.com/uploads/1/3/1/4/131483184/1409704.pdfIn PDF document text
    • http://files.miketurleyphotography.com/uploads/1/3/0/7/130775952/zafinoxolagaseduki.pdfIn PDF document text
    • http://files.essentiahomeopathy.co.nz/uploads/1/3/1/8/131857914/2158547.pdfIn PDF document text
    • http://files.robynabramsmosaics.com/uploads/1/3/2/6/132695633/ludig.pdfIn PDF document text
    • http://files.zannahmerricks.com/uploads/1/3/0/9/130969598/7462208.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/1/0434/2412/0984/files/80583209255.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5743/0176/files/83005554741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5419/4070/files/bewarakawerola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9714/6019/files/75405884983.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6388/3429/files/86937352198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9716/9824/files/80553839751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4672/1946/files/geriwasavatufaxeximani.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1266/9089/files/nayvadius_demun_wilburn_56_nights.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fuwofomakilaxenifotet.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_off000067c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67C3 5564 bytes
SHA-256: 020b00b93e7620d206bdcee0092f8c2859f74d6ab49442b83af07a801fb0b3a0
font_01_sfnt_off00007ad3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AD3 10000 bytes
SHA-256: 92d58efff4b5c2513f1a1f669140f3dec85fffcebe7769f421fed849a3014c9f

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