Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a92c8e549786f28…

MALICIOUS

PDF

44.0 KB Created: 2020-08-12 02:16:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d4dd98cf8e723b6c626823f473db138c SHA-1: 3e29a337491e1affc936f9391c736bfff77f4ef3 SHA-256: 6a92c8e549786f28504bd7bf15ade358e992a7b7c746bf49836729e61fb3a076
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to a redirector service identified as malicious. The document body, though obfuscated, contains text suggesting a tutorial lure, which is a common tactic for phishing or malware distribution. The presence of a malicious redirector indicates an attempt to lead the user to harmful content or a further stage of infection.

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=3ds+max+tutorials+pdf+malayalam In PDF document text
    • http://files.dolphinvacations.net/uploads/1/3/0/7/130739906/wiravavak.pdfIn PDF document text
    • http://foxolo.privateinvestigatorsdubai.com/uploads/1/3/1/6/131606407/vawovuxerapeg_vafurumatubopa.pdfIn PDF document text
    • http://files.creativethoughtevents.com/uploads/1/3/0/7/130738641/binatenol.pdfIn PDF document text
    • http://files.allheartjsj.com/uploads/1/3/0/7/130739225/3c7dfa44057.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/1/0447/5496/0535/files/business_development_director_resume.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6919/1832/files/apologize_piano_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/python_discord_bot_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/2422/3141/files/prevention_of_occupational_hazards.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3006/8898/files/81930738869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5520/8858/files/54793976404.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4749/4567/files/7725259027.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2123/6386/files/annotating_on_surface_pro_4.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7108/6492/files/dagenuxojojasufidi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7814/7491/files/sazodezadavetodufuxa.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 2

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_off00006f11.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F11 5428 bytes
SHA-256: f91bb41db306d3914f900b28f27313bd6411812ac16564d2034c4800e2d3040c
font_01_sfnt_off0000817b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817B 9864 bytes
SHA-256: d262084c420447f4e2df38bada5f829268768c7ca89117d5d5e1759cd8f233d8

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