Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2cc036bdd93e3b7…

MALICIOUS

PDF

38.7 KB Created: 2020-08-23 09:19:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5364b832c7e808f6d22afff83cce8198 SHA-1: 6bd3d943a8e41c8eebab035198dd88b4578b069e SHA-256: e2cc036bdd93e3b761f5604f1de9b8c62c59dea5ffc8a7023c3b0ae746c90998
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=oxford+thesaurus+apk+full'. This URL is likely part of a phishing or malware distribution scheme. The document also contains a PDF link farm heuristic, indicating an attempt to manipulate search engine results or distribute content widely. The presence of multiple Shopify URLs, while some are confirmed benign, suggests a pattern of using legitimate platforms for hosting or redirecting to malicious content.

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=oxford+thesaurus+apk+full In PDF document text
    • http://debepavo.coloradocattlewomen.com/uploads/1/3/1/4/131454065/385e4.pdfIn PDF document text
    • http://files.nsrec.com/uploads/1/3/1/8/131871518/besewitagavajumuku.pdfIn PDF document text
    • http://kugivivog.ritecookware.com/uploads/1/3/1/4/131453960/f43badd.pdfIn PDF document text
    • http://files.janetmancini.net/uploads/1/3/0/8/130813357/polok.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/1/0432/3786/7687/files/cornell_critical_thinking_test_level_z.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3332/9817/files/fundamentals_of_vibrations_meirovitch.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6628/4446/files/29435126920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4610/0392/files/62708287776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6852/2657/files/food_and_beverage_cost_control.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2224/5273/files/84036609193.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1701/7256/files/22855601748.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/6537/6673/files/90837897313.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4460/0999/files/ventral_hernia_patient_education.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 8

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_off000058b8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58B8 5288 bytes
SHA-256: 23deaa219750c11eddbaf19736c34e8aa6514207fdd19710d7e494f92729f8c7
font_01_sfnt_off00006ab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AB6 10404 bytes
SHA-256: 45ec232faaaf9585e480d6a57ba1758ac3ffcfcd2552a215a4a67b45c062e7e1

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