Malicious PDF — malware analysis report

Static analysis result for SHA-256 36c060450907183f…

MALICIOUS

PDF

49.6 KB Created: 2020-08-05 17:33:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1093148190ee4ebf773b02730f577aed SHA-1: d64657fe2dfefdf62ec3c52b11a70e8d9f883379 SHA-256: 36c060450907183fbcafe8adc1a241e771350749ed6c70aa276a71b9a74e3d2c
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, with one identified as a known malicious redirector. The ML classifier also strongly indicated maliciousness. The document body itself is heavily obfuscated but contains the primary malicious URL. This suggests the PDF is designed to lure users into clicking malicious links, likely for phishing or malware delivery.

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=ectoderm+mesoderm+endoderm+pdf In PDF document text
    • http://files.awakenhopeandwellness.ca/uploads/1/3/2/6/132682471/mewotafejimoba_xenizirego_kopodizi_pizofizufor.pdfIn PDF document text
    • http://files.uhsjcl.com/uploads/1/3/1/3/131382696/b308988d039df18.pdfIn PDF document text
    • http://files.higgins-sinus.com/uploads/1/3/2/3/132302816/9415805.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/1/0433/5845/3918/files/63680029310.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3845/7508/files/zulivenimozujege.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3053/6614/files/copper_mountain_snow_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5417/8216/files/nugazijavonuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8206/2753/files/tewefopewitazegunozogipe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0307/4971/files/nerimoxofinazulojimog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8182/files/gibilakeralabuximud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/vugadotilel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9557/0072/files/rapuloxotiwabokigaloxak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8767/6063/files/89722815714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8155/6375/files/96636464096.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 5

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_off000085fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85FC 5016 bytes
SHA-256: 245bba24cb34a1d54f5661d8d2af73b1ba91d53d0c3b7d12e5be057286edd104
font_01_sfnt_off000096fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96FD 10156 bytes
SHA-256: 54329a35c6858546607685e9f7bee88d65cbded5744f3a92d1ac25333f32a75c

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