Malicious PDF — malware analysis report

Static analysis result for SHA-256 fab101d4ff299c4c…

MALICIOUS

PDF

37.1 KB Created: 2020-08-26 09:06:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c5f1474775f2a5a734bf1c810b06aed SHA-1: 25b6bb08bf41a5455ef60328f2939fcdee233f1b SHA-256: fab101d4ff299c4c8634cd20eddb17f8699b4cd8e6a2045375b2584883544761
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK and PDF_SEO_LINK_FARM indicate that the document is designed to host a link farm, likely to distribute malicious content or phish users. The primary malicious URL identified is https://ttraff.ru/pify?keyword=appareil+respiratoire+cm2.

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=appareil+respiratoire+cm2 In PDF document text
    • http://files.katiephomes.com/uploads/1/3/1/3/131381237/vitomenujuvifagu.pdfIn PDF document text
    • http://mamul.grimestrading.com/uploads/1/3/0/7/130776688/9644225.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/1/0455/7848/5925/files/old_apostolic_church_beliefs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4708/4454/files/catalogue_marjane_janvier_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9689/8724/files/esclerosis_multiple_signos_y_sintomas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/fortune_at_the_bottom_of_the_pyramid_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/the_matrix_dezionized.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1062/8511/files/72843580338.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6838/3641/files/76033791057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2019/7789/files/38018283128.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1420/1241/files/6156605553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3888/3485/files/bed_bug_blood_on_sheets_pictures.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 1

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_off000051b5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x51B5 5200 bytes
SHA-256: 438e66fbb33e12e527137195b6c0c3f4903cc8d17f46cae6f6efc757a9cf54f5
font_01_sfnt_off00006347.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 11080 bytes
SHA-256: 554b6f44492a67c1f54a709a2dba97d2ada890ddbad1a34deda88763651c3af8

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