Malicious PDF — malware analysis report

Static analysis result for SHA-256 bca5552607bc258a…

MALICIOUS

PDF

50.5 KB Created: 2020-08-06 22:25:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce17179684a2c7bb032e7ca2f27fc5bd SHA-1: b0d853316ad1b8ea83610ecaeca5d1c43ace9655 SHA-256: bca5552607bc258a7b0ae8f488cf753501353fbf34d21ce7bb62ec86b61fe984
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links, many pointing to redirectors and SEO farms, designed to trick users into downloading potentially malicious content. The primary lure, 'Exercise plan for weight loss pdf', leads to the malicious redirector URL https://ttraff.cc/pify?keyword=exercise+plan+for+weight+loss+pdf. This indicates a phishing or scam campaign using a document as an initial vector.

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.cc/pify?keyword=exercise+plan+for+weight+loss+pdf In PDF document text
    • http://files.street-sharp.com/uploads/1/3/2/6/132695306/5632864.pdfIn PDF document text
    • http://toratuz.holdinghandsandhearts.com/uploads/1/3/2/3/132303382/2b5b85ca12.pdfIn PDF document text
    • http://files.beitnachum.org/uploads/1/3/1/8/131856666/digopujopepirok_bujuke.pdfIn PDF document text
    • http://files.healthyfoundations.co/uploads/1/3/0/7/130738614/rumasisive.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/1/0428/7247/1718/files/9180303417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1935/2740/files/boundary_element_method_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1605/2123/files/wesoxiwemazodina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/19000000351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5638/8510/files/28658475371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7981/1750/files/jidejuxupaselezukavivob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4677/3660/files/61647817954.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9413/8268/files/kutegavuraxuxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1281/5008/files/vce_to_convert_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6896/5532/files/rinopuluginifamugesexisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3708/2271/files/folenon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5906/1670/files/33526873372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1618/2184/files/mod_menu_gta_5_xbox_360.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3775/1453/files/conjuntivitis_bacteriana_recien_nacido.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_off00008694.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8694 5536 bytes
SHA-256: f5a6a78036561dd1248589eef93f7521ae151da354b330b3257255fd235ebd05
font_01_sfnt_off0000997f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x997F 10288 bytes
SHA-256: 0cca0e4b9b671c22fc06510980b684a99818a922285be5d7de7099beaddcff80