Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5a091c4814d1308…

MALICIOUS

PDF

41.4 KB Created: 2020-08-14 12:40:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b37d8b3a91a948086de3521658d3f766 SHA-1: 6189466e4b5c097cedb38f1da168ed7cfcd1fb01 SHA-256: e5a091c4814d13088430f53d0bfea1992f85b96be7030bf3a1ed7ef7aeeb36a0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a high number of embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Jervis bay marine park map pdf' and the URL 'https://ttraff.ru/wb?keyword=jervis%20bay%20marine%20park%20map%20pdf', suggesting a lure to disguise malicious redirection. The ML classifier also strongly flagged this PDF as malicious.

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/wb?keyword=jervis%20bay%20marine%20park%20map%20pdf In PDF document text
    • http://pujefuda.fidelcantephotography.com/uploads/1/3/2/6/132681352/vinabuvalit_wujolapav_biwite.pdfIn PDF document text
    • http://files.mnnicebaseball.com/uploads/1/3/1/3/131383586/c7d5c81f08de6ec.pdfIn PDF document text
    • http://files.fiddlersgreenaussies.net/uploads/1/3/1/8/131857419/faweravaluxovimobenu.pdfIn PDF document text
    • http://files.universalsportsstrength.com/uploads/1/3/0/7/130740483/7ef72ff.pdfIn PDF document text
    • http://files.songyingfang.com/uploads/1/3/0/8/130874495/ad03c08f9d67.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/1/0434/9024/6822/files/brandenburg_concerto_piccolo_trumpet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/suton.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9849/6412/files/ode_to_autumn_poem_explanation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7548/4313/files/ponevutikawowizisuse.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4691/1643/files/66270318855.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8620/8406/files/e_coli_bacteria_in_water.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/japemaleloxupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4655/8106/files/48544656131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4519/9784/files/wefivexiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6352/5029/files/58906785591.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zijilo.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_off00006240.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6240 5508 bytes
SHA-256: 158ca15eab6d42b1da63787707890b3da6d0db186bd94404960ddefb47bb3e5e
font_01_sfnt_off000074ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x74EF 10632 bytes
SHA-256: ea4c8baa92746b684887e9795ca3fd0850caeb1d91c7ef51899bfc24658fe43b

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