Malicious PDF — malware analysis report

Static analysis result for SHA-256 845ced49256328c1…

MALICIOUS

PDF

45.4 KB Created: 2020-08-01 13:18:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 82e114a4bdcb40e2b1d95f0e3fb1d2bb SHA-1: cf7f4e112e534addcd6172bc8edf86fe0e22ddac SHA-256: 845ced49256328c18ca59d2a7f62ff1bbf2a8e1b38d23b69134b2a20591c10c8
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector service (ttraff.cc) which is flagged as malicious. The document body, though heavily obfuscated, contains URLs that appear to be part of a link farm designed to attract search engine traffic and lead users to malicious sites. This suggests a phishing or malware distribution scheme.

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=php+loop+through+array In PDF document text
    • http://files.matthewjgoodwin.org/uploads/1/3/2/7/132740804/56b46da9.pdfIn PDF document text
    • http://files.falconhillbz.com/uploads/1/3/2/6/132682882/zetobisudofijon.pdfIn PDF document text
    • http://files.bluelabelproducts.net/uploads/1/3/2/6/132680808/mufise-lewipepodorudot.pdfIn PDF document text
    • http://files.easygocentralillinois.com/uploads/1/3/1/4/131437932/xugebokuzi.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/1/0433/5452/1758/files/widuzeja.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6461/4303/files/vebudokenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3976/9254/files/82587466082.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/87678197609.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/sevanatozasivopitat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6638/3768/files/zikozozusofis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9780/1375/files/53935490779.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0994/9341/files/palewapurodazoxuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0336/2973/files/lakadafidepamupiwek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0939/1261/files/gotasorel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8110/4541/files/gisejanele.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3837/5074/files/66096392835.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_off000065c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C2 5004 bytes
SHA-256: 8d2ea79490fac371089135e8f1cc555767bd825bd221e9ab5ae147649f6aa948
font_01_sfnt_off000076cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x76CC 15780 bytes
SHA-256: e372a19aa309243d9af10dc67ee31aa6c3b92020c42a5c4377d91d8d72698fe7

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