Malicious PDF — malware analysis report

Static analysis result for SHA-256 71868393194a58b5…

MALICIOUS

PDF

44.1 KB Created: 2020-08-19 08:06:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d98e2bfbdd571511399c185edf9fc29c SHA-1: 483a86bff8477ee3eb63468596b992c323f8f68f SHA-256: 71868393194a58b57957175a4eab2a8cdd04651ddc028bf2a5f7659f3ce42cd9
194 Risk Score

Malware Insights

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

The PDF contains embedded links that point to a redirector URL, identified as malicious. The document body, though heavily obfuscated, contains a URL that appears to be a lure for users interested in fishing reports. The presence of multiple external PDF links, many pointing to potentially malicious or unknown domains, suggests an attempt to distribute further malicious content or phish for credentials.

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=offshore+fishing+report+san+diego In PDF document text
    • http://nixovudad.kinsellamitchell.com/uploads/1/3/1/4/131437513/7109614.pdfIn PDF document text
    • http://pevudojev.kartchnersspecialtymeats.com/uploads/1/3/0/7/130739829/susotida-muvezozi-dipises.pdfIn PDF document text
    • http://files.brandonmoorecomposition.com/uploads/1/3/1/4/131438766/muxigem.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/1/0436/3550/7358/files/82746655231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/autocad_2018_learning_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2831/5288/files/gungeon_flash_ray.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0107/7142/files/57535341951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0531/2154/files/jibagedu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0119/2352/files/muredobenelokux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8647/1587/files/ielts_speaking_band_9_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0433/6040/files/chicken_biryani_recipe_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3436/1503/files/varufedotasejaragi.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_off00005ee6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE6 5088 bytes
SHA-256: f3540d0e4b1b036aba3300c84da40c7fe4220db2d7d9ed89269767599e67c894
font_01_sfnt_off00007021.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7021 10828 bytes
SHA-256: 577d64cbf25183b45ab5200760d16becaf8ef95a910a51c946c1bde268bf2cbf
font_02_sfnt_off0000950f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x950F 4324 bytes
SHA-256: cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34