Malicious PDF — malware analysis report

Static analysis result for SHA-256 c03813a182ccc982…

MALICIOUS

PDF

46.0 KB Created: 2020-08-11 09:08:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: ce6d0232f4ec7867f6256100a17de084 SHA-1: 0d0b7f42c51540b687378feea518edeee3edd619 SHA-256: c03813a182ccc98272bb492d19c0ef3060ea784900296ad9aaa4b4b1e45bf647
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be SEO-optimized for search engines. A critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=iit+b+tech+computer+science+syllabus+pdf', which is also present in the document body. This suggests a phishing or scam attempt to trick users into downloading potentially malicious content by disguising it as educational material.

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.com/pify?keyword=iit+b+tech+computer+science+syllabus+pdf In PDF document text
    • http://files.bostonmedstaffing.com/uploads/1/3/1/8/131871642/f3e4d4a.pdfIn PDF document text
    • http://gozorefuv.stphilipstdenis.com/uploads/1/3/1/3/131383775/7bd28ca.pdfIn PDF document text
    • http://files.mrsbrandal.com/uploads/1/3/1/4/131406234/tatupejemozusevesax.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0446/5659/1011/files/du_b._ed_entrance_exam_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4119/3110/files/15166874239.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3101/8142/files/real_feel_temperature.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6145/8582/files/ruxadiliru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0202/6393/files/22041817408.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9956/8795/files/86735558171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8144/0168/files/biosynthesis_of_quinine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1863/3894/files/46889185486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6279/6186/files/alquran_terjemahan_bahasa_inggris.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8022/8759/files/vyond_comedy_world_character_creator.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4480/5525/files/vurezulivexukomiw.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 7

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f95.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F95 5456 bytes
SHA-256: 50d06e0772aea03b41d0ad8cdd9fa4100f2387da96fb0afaf75bb86553f10646
font_01_sfnt_off000071f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x71F1 13804 bytes
SHA-256: d97de922480bb828d7e5e72a1bb66991128df67968b4987419802e8c69128fcf
font_02_sfnt_off00009cdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CDB 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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