Malicious PDF — malware analysis report

Static analysis result for SHA-256 062ffeae49a0c68c…

MALICIOUS

PDF

39.7 KB Created: 2020-08-12 22:03:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bffe2604c7c52f77643927eaddf98327 SHA-1: de85f6d739bdb811301f8464319defc2228e3768 SHA-256: 062ffeae49a0c68cf7cd8c2f4009eec5f82d01e9aac56b1e60683969526497d7
194 Risk Score

Malware Insights

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

The PDF file contains a link farm of 17 external PDF links, many hosted on Shopify, designed to appear as legitimate resources. However, one of the primary links, 'https://ttraff.cc/wb?keyword=emerald%20city%20of%20oz%20pdf', is identified as a malicious redirector. This suggests the document is part of a phishing or malware distribution campaign, likely using the link farm to obscure the malicious destination and evade detection. No scripts were extracted, but the structure indicates a lure for users to click through to malicious content.

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/wb?keyword=emerald%20city%20of%20oz%20pdf In PDF document text
    • http://files.lisaguice.net/uploads/1/3/1/3/131379085/09c663a493dcaa3.pdfIn PDF document text
    • http://files.droolwool.com/uploads/1/3/1/4/131437725/8566107.pdfIn PDF document text
    • http://files.123playandlearn.com/uploads/1/3/2/6/132683259/jipazobuzazo.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/1/0438/1055/4016/files/93392436081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5504/6037/files/24448010046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2906/1014/files/93023985458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/39471483437.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1420/9186/files/potifuferokonedudir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5111/3887/files/gitumikogopab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9754/files/dunupu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2718/4281/files/africa_cup_of_nations_2020_schedule.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/3738/2040/files/61652884225.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6321/3209/files/very_simple_english_grammar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1748/7011/files/laxejejudaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3122/2677/files/gce_a_level_biology_notes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1054/6070/files/8635100495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1700/2405/files/88328918335.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005ecb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ECB 5232 bytes
SHA-256: 326f36c94d6f213f16f0d93cdf63fa4ca8469a2ad83c2fc025da1920974118d7
font_01_sfnt_off0000708b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x708B 9764 bytes
SHA-256: e797cd6ea2ce3060cbd052480acb4937b8bc53bbf23a2b13e4ccccf1ad3ac64c