Malicious PDF — malware analysis report

Static analysis result for SHA-256 62c2808a45ca28e4…

MALICIOUS

PDF

42.0 KB Created: 2020-08-15 02:08:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3c5b1c5c770ac0b088e25657fe2a4933 SHA-1: 65e238fda79349a6c38559170aba3471bcc24266 SHA-256: 62c2808a45ca28e4df9d158ce7b9e1429631e6c0cec1bb85273c52cc5ecb3838
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 (ttraff.com) which is flagged as malicious. The document body, though heavily obfuscated, contains references to URLs that appear to be part of an SEO link farm designed to lure users. The primary malicious IOC is the redirector URL, which likely leads to a phishing or scam page.

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/wb?keyword=list%20of%20irregular%20nouns%20plural%20and%20singular%20pdf In PDF document text
    • http://files.moreecatholicchurch.org/uploads/1/3/1/4/131408537/dc5b8fcb34.pdfIn PDF document text
    • http://files.temenosjournal.com/uploads/1/3/1/8/131871907/2249632.pdfIn PDF document text
    • http://files.bremertonfoodline.org/uploads/1/3/2/6/132682806/1ecdd7df706b4.pdfIn PDF document text
    • http://files.charmcitycrusaders.com/uploads/1/3/1/3/131383426/korotato-zasuvirab-worupiwaba-mozumav.pdfIn PDF document text
    • http://baxuna.scottpruysers.com/uploads/1/3/0/8/130874493/6057321.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/1/0436/8056/3350/files/59829520254.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0949/9551/files/46480942652.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6217/3604/files/60281947357.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7098/0245/files/16561612231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4942/6839/files/33393093351.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7121/8588/files/bamomel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/rofimoluxita.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2154/1271/files/15209624137.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7525/4937/files/adobe_reader_for_pc_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7328/9894/files/adverbios_de_grado_en_ingles.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0441/8455/files/bloodborne_dungeon_trophy_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9254/8511/files/57570160435.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_off0000668e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668E 5152 bytes
SHA-256: e7eaceb59f7923ca0ddefcb470960c00512758f0abad7b7e44d4dcacfd915b70
font_01_sfnt_off0000781f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x781F 10184 bytes
SHA-256: 364a13b7f186706f07b6119b8053b3c5260b8031b50b44e86ab774c8c6f0a372

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