Malicious PDF — malware analysis report

Static analysis result for SHA-256 a67aca9ca0634264…

MALICIOUS

PDF

40.8 KB Created: 2020-08-12 06:39:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 070082ecccb1409960218e7a928d8bd3 SHA-1: 6b7d932862aadbe9f9ea4d9e53893f8aa6cfa94a SHA-256: a67aca9ca06342649978c3c80de9b7623a8096d072f4d51535b7d19fe15386d7
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many of which point to Shopify domains hosting other PDFs, and one critical link to a known malicious redirector. The primary malicious URL is https://ttraff.ru/wb?keyword=food%20web%20worksheet%20activity, which is likely used to redirect the user to further malicious content. The document body, though heavily obfuscated, contains this URL and appears to be a lure for a 'food web worksheet activity'.

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/wb?keyword=food%20web%20worksheet%20activity In PDF document text
    • http://vafok.astronumerologywisdom.com/uploads/1/3/2/6/132695569/wikemejal.pdfIn PDF document text
    • http://wonesefi.faysoriginals.net/uploads/1/3/1/3/131380600/1cb9d2cab.pdfIn PDF document text
    • http://files.foodstartuphelp.com/uploads/1/3/0/8/130874110/1367219.pdfIn PDF document text
    • http://files.shannonmacfarlanephotography.com/uploads/1/3/1/4/131437037/metinilatov.pdfIn PDF document text
    • http://files.judithannabramsproductions.com/uploads/1/3/0/8/130814205/rigoweritepolobofotu.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/1/0431/4746/0768/files/retonelewujajojukisemades.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7462/6470/files/95094296235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4021/1105/files/betojebomuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5549/6866/files/85169636646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5110/6972/files/fisesi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6640/9639/files/70368815595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7717/files/pivivexegalefo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/possessivpronomen_bungen_a1.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4312/6438/files/anterior_cruciate_ligament_treatment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6806/2872/files/zizuxidezaredomazutoxan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3140/2395/files/benihana_happy_hour_menu.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 4

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_off00006299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6299 5408 bytes
SHA-256: 8f2e69d8191247eb498c978654116dceb5e1b0160c6c84e6ca2cc3b2f892ab78
font_01_sfnt_off00007514.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7514 9876 bytes
SHA-256: 9ea22428275d0d0a34b23939c8bc3c74f198ab4293c69c71839bfa4cc67c3af9

Open this report in the interactive analyzer, or submit your own file for analysis.