Malicious PDF — malware analysis report

Static analysis result for SHA-256 6604e4737e7d9d60…

MALICIOUS

PDF

38.4 KB Created: 2020-07-26 10:40:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e0ef6d930449e5fa1c5d259560c31b93 SHA-1: 4226187aa0afc4e08f987fbb1dd8620b522e3191 SHA-256: 6604e4737e7d9d6094b8f564c2f15566ea6aa69a3d5c7322ddcb04a98d1dc769
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically identified as a 'free-download phishing' lure. The primary redirector URL, 'https://ttraff.cc/pify?keyword=wedding+whatsapp+status+video++in+tamil', is flagged as malicious. The document body, though heavily obfuscated, contains metadata suggesting it was generated by wkhtmltopdf, a tool often used to create PDFs from web content, further supporting the lure-based attack pattern.

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=wedding+whatsapp+status+video++in+tamil In PDF document text
    • http://files.wisepathbirthing.com/uploads/1/3/1/3/131383045/korerugujajaf_femizajudurevap_xetikabupupuje_dofezirez.pdfIn PDF document text
    • http://files.mindfuljourney4health.com/uploads/1/3/2/7/132740288/de55ee3f97ea.pdfIn PDF document text
    • http://files.southdevonplayers.com/uploads/1/3/2/7/132740845/5545948.pdfIn PDF document text
    • http://files.5049coastalcommunity.com/uploads/1/3/1/6/131636946/3176297.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/1/0431/0761/4882/files/55210815248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1943/files/newesofexunazoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4916/5734/files/kabubifagepanumezaxeva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0644/3163/files/xupesonerojoxudurozuzif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9257/3334/files/5425008899.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3523/8301/files/50090942006.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/zetobivokow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4430/5061/files/52313970304.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8801/1673/files/dogazapejegegem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7430/6719/files/221674641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1189/9545/files/61830870882.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1502/0448/files/33455954351.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 6

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_off000059a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59A3 5324 bytes
SHA-256: 771bf51ea7631f3f71b3ccd7d2a62a72f1faf137f4fa5efd334969f8537c1629
font_01_sfnt_off00006baf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAF 9388 bytes
SHA-256: 25c7ff3bae15b48d906d259395af439badbf1e3e017aa5f686882c8148ec152e

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