Malicious PDF — malware analysis report

Static analysis result for SHA-256 5f5342421980562e…

MALICIOUS

PDF

37.0 KB Created: 2020-08-15 06:17:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4485100d4dc85ef715090ff83a7c2722 SHA-1: 742521a641dd38a75d0fc96ac4d1fe4dc5edb028 SHA-256: 5f5342421980562e97b98eddc476977389263bc51eedf93a45271a1b75bebb2e
194 Risk Score

Malware Insights

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

The PDF contains a deceptive document body and multiple embedded URLs, including one identified as a malicious redirector. The heuristic firings indicate the PDF is designed as a link farm, likely for phishing or malware distribution, masquerading as a weather report. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest an attempt to redirect the user to malicious content.

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=goregaon+weather+report In PDF document text
    • http://files.lgbtwalco.org/uploads/1/3/1/4/131406861/337489.pdfIn PDF document text
    • http://files.federalwayseniorcenter.org/uploads/1/3/1/8/131871602/5698098.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/1/0438/2582/3904/files/feeding_broiler_chickens.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5267/9836/files/pusunuzesalok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0821/9560/files/the_bible_in_arabic_sidney_griffith.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2159/6834/files/gucci_mane_off_the_leash.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/3865/2069/files/76942507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4302/7106/files/vutonejuvegevotujuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4458/6140/files/domeruvofawudara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6844/0232/files/76897366732.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3409/9362/files/wazewitikux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8568/4124/files/african_ontology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3089/6026/files/nerokezubilo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2616/9503/files/mezzo_forte_uncut.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 3

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_off000053ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x53AE 4996 bytes
SHA-256: 88728ca7bc411cb3de50567d8b64d75bc5cec2b06ff973fd8daf860ea5412a74
font_01_sfnt_off000064bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BF 10152 bytes
SHA-256: bf07f1f73ef315e70df1c10c1fecd1715e6eee2d90575dcea7cd0d5d6298846c

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