Malicious PDF — malware analysis report

Static analysis result for SHA-256 0c5bd6441d64770c…

MALICIOUS

PDF

43.1 KB Created: 2020-08-02 19:17:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 949efac464ababcebe25c0383bf4066c SHA-1: a991991086a9b8abc6fa195da66838b5cda09635 SHA-256: 0c5bd6441d64770c274e14140c489d7060293ac40264fee9d902f11cb46ef4c5
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to malicious infrastructure, disguised as a lure for a 'Caterpillar 3208 manual pdf'. The primary redirector URL is https://ttraff.cc/pify?keyword=caterpillar+3208+manual+pdf. This pattern suggests a phishing or scam attempt to drive traffic to potentially harmful sites, likely as part of a link farm or SEO manipulation 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=caterpillar+3208+manual+pdf In PDF document text
    • http://files.brockskillslab.com/uploads/1/3/2/6/132682851/tawemib.pdfIn PDF document text
    • http://files.expo4seniors.com/uploads/1/3/1/4/131452836/wovaxuwobu_fapurega_tijugijupit.pdfIn PDF document text
    • http://files.chrisvanwyhe.me/uploads/1/3/1/6/131636625/7325094.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/1/0429/7018/5879/files/4874088312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0335/5034/files/linobolibodexarotejowi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3105/1931/files/4537896973.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7230/5817/files/wutinapagapofewed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5117/0457/files/zexanebilugikuzarod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8175/0941/files/dibuwilewepizafexadefu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7492/0347/files/sepix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7714/7547/files/34208614079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/98802375644.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1065/3338/files/68830802244.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/xebofimukinenetek.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 3

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_off00005a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5A04 5436 bytes
SHA-256: c40ba771ab1a8da31e1483700b56c550ef8e4f6b58d53a79265f211c6d3e6846
font_01_sfnt_off00006c60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C60 10872 bytes
SHA-256: b194bec16295eb96d0d88336b84ec59a8968f6678eb0fd28f0abfdc38e5a9c7b
font_02_sfnt_off00009174.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9174 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

Open this report in the interactive analyzer, or submit your own file for analysis.