Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb54cb217f11175…

MALICIOUS

PDF

41.3 KB Created: 2020-08-13 21:58:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1fa7c5233bca7d3756d4961decd9917 SHA-1: 06d3b0cca833c047a76a3d046ae971a21ab1da2c SHA-256: 1eb54cb217f11175fb6b14dc37345aafaf062b203541e2d12134629a95f1742c
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a malicious redirector at 'ttraff.ru'. This redirector is likely used to obscure the final destination and potentially deliver a malicious payload or phish for credentials. The document body, though heavily obfuscated, contains the redirector URL and references to 'acrobat pdf reader and editor', suggesting a lure for users seeking software. The ML classifier strongly indicates maliciousness.

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=acrobat+pdf+reader+and+editor In PDF document text
    • http://files.ashleykelley.com/uploads/1/3/1/6/131606890/3767267.pdfIn PDF document text
    • http://files.diymandalastones.com/uploads/1/3/1/4/131454024/dixedizun-nilig-xipulalokuwat.pdfIn PDF document text
    • http://files.bobbyhyam.com/uploads/1/3/0/7/130738894/597cebf18.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/1/0437/5920/6558/files/dufovosawumi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7963/1012/files/45770505019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6163/9318/files/vosamiwuzuga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6178/6262/files/types_of_bucket_elevator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/wizorovabesopigu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/garul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4541/2254/files/cell_organelle_crossword_puzzle_answer_key.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37357510366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/applied_asymptotic_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bodadajigewodozisidezufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7482/1019/files/mercedes_skill_build.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6968/6431/files/introductory_and_intermediate_algebra_5th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0046/1474/files/84863077850.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 6

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_off000060f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60F8 5068 bytes
SHA-256: f62b7249b8e01f76b96411a03304b00bf0cc60b73e95bae1689ca4445067a5aa
font_01_sfnt_off0000723c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x723C 12308 bytes
SHA-256: d46600bb768f7e2929e79a0933d95f0ae276f16705c27c1b0d9cbc5c7d2ab242

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