Malicious PDF — malware analysis report

Static analysis result for SHA-256 7b6dc35a8466072c…

MALICIOUS

PDF

49.3 KB Created: 2020-08-14 11:04:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: dba2d142e9417f283b70ea6385429a1f SHA-1: e31a13fd85c37d39194c856759fd17168c29f411 SHA-256: 7b6dc35a8466072cc1ac21574b8c08f8efe645b63d2bfdfd51b1d2f2ec8432de
194 Risk Score

Malware Insights

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

This PDF document contains multiple links to a redirector service, which is a common tactic for phishing and malware distribution. The document body, though heavily obfuscated, contains the same lure text and URLs as found in the heuristics, indicating an attempt to drive traffic to malicious sites. The presence of numerous PDF links suggests a link farm or SEO poisoning attempt to attract victims.

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=best+free+to+play+cross+platform+games In PDF document text
    • http://files.statedshowroom.com/uploads/1/3/1/3/131398547/dedido.pdfIn PDF document text
    • http://sasupujof.studiodune.com/uploads/1/3/0/7/130740178/paros-kebene.pdfIn PDF document text
    • http://files.originalnest.shop/uploads/1/3/2/6/132682790/1418538.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0182/1859/files/lipofuscinosis_neuronal_ceroidea.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8947/7273/files/average_worksheets_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9994/5112/files/antenna_theory_analysis_and_design_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4760/8730/files/mufakafosabovuduwokaro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/jukowamomekusewenezedog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/fodafozisejuleluz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5442/3445/files/public_officer_appointment_letter_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8186/7176/files/pifupunolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8861/7378/files/kavifemagapavafixenufaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1460/9305/files/tomixoji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8915/8554/files/85493472242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2484/8795/files/abituriyent_jurnali_1.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000761c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x761C 5120 bytes
SHA-256: f378b96c0829c87d8dc9b4c7432b79201346525b7e774fa83572b2a70d69a09c
font_01_sfnt_off0000879b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879B 10148 bytes
SHA-256: b0775b37950c4a963e212fc59696f067476969b66d319aa9945c338588a5a31d
font_02_sfnt_off0000aa5c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAA5C 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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