Malicious PDF — malware analysis report

Static analysis result for SHA-256 12032f7566e4133d…

MALICIOUS

PDF

64.8 KB Created: 2020-08-12 22:31:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dce69ab3edd41ae2c0889cf0fb9c8523 SHA-1: fa1e3e5010a6e9fd1217f0525d6e229037099013 SHA-256: 12032f7566e4133d57da056aba9cec98154d47d9d1001b386ad74b59c4ab105b
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create an SEO link farm, directing users to a redirector URL. The primary redirector URL, https://ttraff.ru/wb?keyword=125%20kettlebell%20workouts%20pdf, is flagged as malicious. This indicates a phishing or scam attempt, likely using the guise of providing workout information to trick users into visiting a malicious site.

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=125%20kettlebell%20workouts%20pdf In PDF document text
    • http://files.coaching-planet.com/uploads/1/3/2/8/132814276/lebumujajofo-dewitupekaja-mozofaw.pdfIn PDF document text
    • http://files.aceearlyyears.com/uploads/1/3/0/7/130738534/3150941.pdfIn PDF document text
    • http://files.dragonflykarate.org/uploads/1/3/0/7/130739614/4790490.pdfIn PDF document text
    • http://files.sfhsperformingarts.com/uploads/1/3/0/7/130776499/negugulebum.pdfIn PDF document text
    • http://nanaz.alexeyevasmith.com/uploads/1/3/0/7/130775626/d23358f69b.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/1/0436/9462/0837/files/walulixifavigowod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6165/8279/files/guvonuwurojunego.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wupukibasabozuxijixosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2452/1128/files/19556922557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2641/4749/files/32160577199.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1100/4821/files/jerufejixovuwoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4519/1841/files/alter_ego_plus_a2_corriges.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5702/9019/files/24901482887.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/5238/1846/files/zebosuzevasizo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5588/3175/files/mugopekavutubobanitezow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7213/5074/files/mapekutugusuna.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8759/files/86953505774.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2622/files/3267814168.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6363/1272/files/52601767745.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b447.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB447 5332 bytes
SHA-256: a2e12960a4c8991e742ffefef8ea1fc0ffdb50cabb6915e705f88ab324280f58
font_01_sfnt_off0000c689.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC689 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off0000cf17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF17 11636 bytes
SHA-256: 9ebad58e7c14e2d1cff361a9a99ca7a8932473143ccffb0e510e5b5bcf01e615