Malicious PDF — malware analysis report

Static analysis result for SHA-256 514e8ff8ae28c0a1…

MALICIOUS

PDF

43.7 KB Created: 2020-08-04 01:53:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8cd3f733b8960dcb28c1e5fccdc68cb5 SHA-1: 7c0721e3f04a970ab2fccf495191bd7d069b5db3 SHA-256: 514e8ff8ae28c0a17e7bda82ff38fe99d2953677f2703cb7003c3cd3eebf8c0c
194 Risk Score

Malware Insights

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

The PDF document contains a mass of external links, many of which point to a redirector service. The primary malicious link, 'https://ttraff.ru/pify?keyword=acrobat+dc+cannot+edit+pdf', is designed to lure users by suggesting a solution to a common software issue. The document body, though heavily obfuscated, contains references to 'Acrobat dc cannot edit pdf' and 'wkhtmltopdf', reinforcing the lure. The presence of numerous Shopify-hosted PDF files suggests an attempt to blend in with legitimate content while distributing malicious links.

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.ru/pify?keyword=acrobat+dc+cannot+edit+pdf In PDF document text
    • http://files.harleyeaston.com/uploads/1/3/1/3/131398142/xujilefewar-dewizok.pdfIn PDF document text
    • http://files.dassiedahan-author.com/uploads/1/3/1/4/131436971/wixodasa.pdfIn PDF document text
    • http://files.tulipanproductions.com/uploads/1/3/1/4/131406181/9675420.pdfIn PDF document text
    • http://files.lifeschool-education.com/uploads/1/3/2/8/132815298/5629068.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/1/0431/3461/5706/files/xinasozabemekexokowade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1264/3223/files/dutch_curse_words.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2816/9383/files/1989_chevy_truck.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4651/0497/files/24930325705.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7026/6273/files/12836413842.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30072581460.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1633/9111/files/bajupuvupo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9856/9888/files/41348393775.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0063/5290/files/final_cut_pro_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9181/2767/files/wenoseverogifekelabope.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/porovurujapiganipuzul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/kexenaburunubajibiwuvopi.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_off00006ac3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AC3 5068 bytes
SHA-256: 17a452ae6438fe7d073f6c1a4ca93303d1cfbb59a66e96b80265d14a35ed88ca
font_01_sfnt_off00007c0f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C0F 10984 bytes
SHA-256: e581d2c60764e1ed5edc63f84c250b0f8126384883419ee9fc37cee755dc4463