Malicious PDF — malware analysis report

Static analysis result for SHA-256 e82bd18dc98bb8c7…

MALICIOUS

PDF

48.7 KB Created: 2020-08-05 05:24:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 771b51950571befaf5b6d0718e68d8b1 SHA-1: 051282a2856a1179511d5d14008fd6108de8cf02 SHA-256: e82bd18dc98bb8c75b4158b3f9c9db1926c5ed549a0391d1a820f54c48b7b334
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary heuristic indicates that the PDF links to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. This suggests the document is designed to redirect users to malicious content, likely for phishing or malware distribution.

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=annasaheb+patil+arthik+vikas+mahamandal+pdf In PDF document text
    • http://files.sunshinecoastmastersswimmingclub.com/uploads/1/3/1/3/131398497/xipakepasipe.pdfIn PDF document text
    • http://files.sothismedias.com/uploads/1/3/0/8/130874369/2328758.pdfIn PDF document text
    • http://files.dscottcurryatty.com/uploads/1/3/1/4/131407802/xodobu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4737/7301/files/xubino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8218/5893/files/aromatic_plants_definition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/48466687054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5307/9963/files/j_aurais_prfr_vivre_gratuit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2887/2359/files/xetodigopomadazogatudivet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1217/files/15802541258.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5517/8150/files/13210863745.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2727/4645/files/pasabubuxitifalawarerorir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8611/9079/files/76579287659.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9999/6839/files/7299149462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0173/3542/files/widokuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2207/3508/files/22018584789.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000635c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x635C 5536 bytes
SHA-256: 6a629438f4eff95f1068986fea022d8aaf709c5b28dcd4acfb25661b38d7074c
font_01_sfnt_off00007602.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7602 10104 bytes
SHA-256: 50bf9375f816b7e1669cee8e423d20c32c46727aeb1df6ea715a0be65aada7ae
font_02_sfnt_off000098c6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x98C6 8704 bytes
SHA-256: 84e4620e45c9aac2e499905b4c1788f07a9cd28e624f66c95e853fe8c5cbc5d1

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