Malicious PDF — malware analysis report

Static analysis result for SHA-256 b04d2d49c0acaf0b…

MALICIOUS

PDF

42.1 KB Created: 2020-08-08 05:16:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 900e49f7c36003112c8481ba7f845c42 SHA-1: 4fb490de1d9bbc5436e31ccc55132226f2eaa740 SHA-256: b04d2d49c0acaf0b348e22d8eb5ed31b1776747b2e05ee70c62fdb51f720e121
214 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one critical heuristic firing indicating a link to known malicious redirector infrastructure. The document body and heuristics suggest a lure impersonating a document signing service or a PDF reader download to trick users into clicking the malicious link. The primary malicious URL identified is https://ttraff.cc/pify?keyword=pdf+file+reader+download+app.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Document signing service impersonation lure medium SE_DOCUSIGN_LURE
    Document impersonates DocuSign, Adobe Sign, or a similar signing service in a signing-request context
  • 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=pdf+file+reader+download+app In PDF document text
    • http://files.ocburritoproject.org/uploads/1/3/2/7/132712315/fegudekeg.pdfIn PDF document text
    • http://pufijukim.remodelingbymartinbrothers.com/uploads/1/3/2/6/132682883/4138277.pdfIn PDF document text
    • http://files.mindfulmethow.com/uploads/1/3/0/9/130969851/xofujanabojavu.pdfIn PDF document text
    • http://files.canaseragafestival.com/uploads/1/3/2/6/132695244/5337395.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/1/0440/8596/9048/files/63010247676.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3191/9765/files/coveted_magazine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7832/7203/files/fowiwugon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6187/9719/files/logajigiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/quicken_2015_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7449/4369/files/96925898372.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/63632177945.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8370/3206/files/55379317212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8583/7989/files/convertir_un_escaneado_a_un_word_editable_gratis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/2182/2120/files/chemistry_formula_sheet_college.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 8

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_off00006794.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6794 4948 bytes
SHA-256: 5ae18c7c071d25c0f4df4dd4540c1db97fa25ca649efc1339e7b4caa9f187db4
font_01_sfnt_off0000788e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x788E 10196 bytes
SHA-256: 9c697c9920a1afdc67da01dd6a417d78014af3261d684b83ef9f94491547bfc1

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