Malicious PDF — malware analysis report

Static analysis result for SHA-256 b1cc7252a4561212…

MALICIOUS

PDF

71.2 KB Created: 2020-09-04 22:44:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 566229be4c9dcf493f530d723271f331 SHA-1: 56c097a9686e9cd64f9a86f22fa9d53802d4da45 SHA-256: b1cc7252a456121275837266d003f250c1b14ac49d86b800a7ced9dfcd588675
194 Risk Score

Malware Insights

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

The PDF file contains a link to a redirector URL, which is a common tactic for delivering malicious payloads or leading users to phishing sites. The document body, though heavily obfuscated, contains keywords related to 'fortnite challenges' and the redirector URL itself, suggesting a lure to attract users interested in this topic. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely part of a link farm to improve search engine ranking and visibility for the malicious redirector.

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.me/wix?keyword=blockbuster+fortnite+challenges+guide In 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/1/0435/4542/8122/files/85461401628.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4322/5751/files/64334786427.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2422/0321/files/61052256895.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0926/1218/files/reloniwinizarimadetoreji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9099/1521/files/illustrated_chinese_english_dictionary.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5481/6667/files/8120048704.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2711/files/23073692851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0340/3678/files/59093372000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4228/2394/files/time_calculator_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/pink_floyd_pulse_torrents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/3032/7975/files/importancia_de_los_agentes_economicos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3242/0262/files/cashew_nut_production_in_tanzania.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000764e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x764E 6676 bytes
SHA-256: c771749ac430df80d980b7b547ce8d3855b3538cef4b0649cf9476a0c216e958
font_01_sfnt_off00008721.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8721 5536 bytes
SHA-256: d21ed479ac0a75fabd0e29c4c8dab4e48f4a6dc6f5db27505fa131ba86ec2431
font_02_sfnt_off000099e8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x99E8 19392 bytes
SHA-256: 672d22a937d9e620722b841617c759b597602e5dfc7e1cb44210b3ae06021784
font_03_sfnt_off0000d182.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD182 10768 bytes
SHA-256: 41711d4f6fca2610a8701b5e1bec946c1b94497c6f1e12d3211a9e641a7ce6b5
font_04_sfnt_off0000f696.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF696 16436 bytes
SHA-256: 5a4acb3f5cd2d2756b8409a295c59c5cd1c0eadc6a42efb0d91c3e9fbbec6201