Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d0f88ab2a97254c…

MALICIOUS

PDF

65.7 KB Created: 2020-08-11 15:07:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 182cb295b5d1bf0beef80f261b18ac43 SHA-1: a9bb9bbc150f615051cea20f34af3d34fa3c2fd3 SHA-256: 0d0f88ab2a97254cfc75c297256b71a10933dd74ae6ff00a50af142973a7a2ba
194 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating it's a malicious redirector, specifically designed to lure users with a "free download" pretext. It links to a redirector URL that ultimately leads to malicious infrastructure, likely for phishing or malware distribution. The presence of numerous external PDF links further supports the SEO spam/phishing lure.

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.cc/pify?keyword=bioassay+pdf+download In PDF document text
    • http://files.selaliphotography.com/uploads/1/3/1/4/131453684/wizuduvi_kezaf_bijogiwirujimut_ginuzowe.pdfIn PDF document text
    • http://files.burchcreekanimalhospital.com/uploads/1/3/1/6/131606256/f5cc1c7bd938.pdfIn PDF document text
    • http://files.decodingdyslexia-az.com/uploads/1/3/0/7/130738903/8545861.pdfIn PDF document text
    • http://pubchem.ncbiIn 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/1/0429/4872/2851/files/dialectical_behavior_therapy_skills.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5734/7749/files/zugalokiluzabepugadeporat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0686/9147/files/jofopibuvaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9975/0560/files/telovexo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3600/8870/files/52152241653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4141/4552/files/46079376568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0595/9574/files/kavirelezosaki.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2553/8970/files/16533947412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4011/1782/files/33460032044.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8228/4194/files/diltiazem_davis_drug_guide.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_off0000c626.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC626 5184 bytes
SHA-256: fde199fbdce30e83cfa51806780090609c557ff78869f9c7677d8046dd6a608f
font_01_sfnt_off0000d7f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7F1 9980 bytes
SHA-256: 9f095023f67c8af82e6f5886171acc46cafa7933a9dc453075e2bc330434a29c

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