Malicious PDF — malware analysis report

Static analysis result for SHA-256 de89ab344c40e8bc…

MALICIOUS

PDF

44.0 KB Created: 2020-08-13 22:32:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f7898ac9a546ff46d94dc67b6afa0fa0 SHA-1: 08f9e20ea1221b9f027f7bf6cf96497788707490 SHA-256: de89ab344c40e8bc376bf65b5ba7724a01fef4eedb1b0bb89de140e9b3b5d6df
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass of external links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is part of an advance-fee scam lure. The document body, though heavily obfuscated, contains the URL that leads to the redirector, indicating the primary attack vector is luring the user to click the link. The presence of numerous PDF links and the advance-fee scam lure strongly suggest a phishing or social engineering campaign.

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=final+cut+pro+x+templates In PDF document text
    • http://rozanera.jamesportcigarco.com/uploads/1/3/1/3/131398591/mukukufajogi.pdfIn PDF document text
    • http://files.e-learningo6u.com/uploads/1/3/1/4/131407469/5009806.pdfIn PDF document text
    • http://files.krabidream.com/uploads/1/3/2/6/132681566/3285554.pdfIn PDF document text
    • http://paxaxar.kanturkbns.com/uploads/1/3/1/4/131408024/75cfddbe0a2ca3.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/1/0430/9581/8397/files/13090440902.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6095/2229/files/sejazaku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8191/5798/files/vopafapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1024/5279/files/wukir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5511/1589/files/bisifubotabuko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7646/0448/files/fovebotevatisudilaliwofi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5152/2977/files/90398248062.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3422/9398/files/pulojusaxigijala.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7424/1187/files/64265549928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4991/files/26666273925.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0425/4615/files/brayton_cycle_problems_and_solutions.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_off00006f7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F7F 5104 bytes
SHA-256: 0e46d261732481a63755dfa171028e1cccb25911a9158efab0c7ee636ce4ff5b
font_01_sfnt_off000080bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80BF 10244 bytes
SHA-256: 600af6fbd1e703a9ccda8ba0257127480d776f1eaa8cb442ea0f556a99b43eb9

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