Malicious PDF — malware analysis report

Static analysis result for SHA-256 0144f8ca2bf6cbbf…

MALICIOUS

PDF

48.9 KB Created: 2020-08-12 05:13:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: de906685b63707a916c1477a0d26aff1 SHA-1: e38d09dc675464c54c2505073eab360444c5b7b7 SHA-256: 0144f8ca2bf6cbbfcc4d851af6556376f21590a4bcb7cf77a8d25eda7ae6ab99
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file contains numerous links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains the same redirector URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to lure victims. The ML classifier strongly indicates maliciousness, and the overall pattern suggests a phishing or scam attempt disguised as a document download.

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.com/pify?keyword=cognitive+behavior+modification+an+integrative+approach+pdf In PDF document text
    • http://files.shore2shoretravel.com/uploads/1/3/1/3/131380292/dudoregal.pdfIn PDF document text
    • http://files.supernovaacro.com/uploads/1/3/1/4/131406714/maximefodukude.pdfIn PDF document text
    • http://files.kimballrentals.com/uploads/1/3/1/6/131606111/973547.pdfIn PDF document text
    • http://files.neusroig.com/uploads/1/3/1/4/131454024/bolamizidagib-jezubokexitima-kesokeza.pdfIn PDF document text
    • http://files.guerrillazoo.com/uploads/1/3/0/7/130739616/5761426.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/1/0439/5171/8558/files/petatofitizivixuliso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8434/9591/files/sequence_and_series_all_formula.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6197/8023/files/47417063188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/72890356131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7514/1783/files/ansi_c_programming_language_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5358/0441/files/advanced_metallic_materials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0506/6913/files/20346294411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6287/6565/files/puxapoxowar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0778/2557/files/monitoring_of_harmful_algal_blooms.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0533/0083/files/1471460269.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7016/8986/files/bolaxoxumilelunogaxi.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 4

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_off00007fd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD3 5464 bytes
SHA-256: e8e67155e8a2b542f9a84883a584b0f60208c66a421bad9e5d01a378181f9245
font_01_sfnt_off0000924d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x924D 10552 bytes
SHA-256: 02570905ba7bdb3e66767932a8a73b43091dc708fd83abe040ec96bf23beba24

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