Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb7a00ffad2e204b…

MALICIOUS

PDF

42.0 KB Created: 2020-08-21 15:44:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d3d093d8c16f5f810d524fafbb25266c SHA-1: 6cebc574613aa3596457c9b33580573b31083ab0 SHA-256: fb7a00ffad2e204b93b706529e1f91b4518165a60b88c25d52c3aba7909d6c4a
194 Risk Score

Malware Insights

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

The PDF contains a deceptive message about 'my birthday cake pics' and embeds multiple links, including one to a known malicious redirector at 'https://ttraff.cc/pify?keyword=my+birthday+cake+pics'. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms this malicious intent. Additionally, the 'PDF_SEO_LINK_FARM' heuristic indicates a large number of external links, many hosted on shopify.com, suggesting an attempt to manipulate search engine results or distribute malicious content through a link farm. The ML classifier strongly supports the malicious nature of this PDF.

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=my+birthday+cake+pics In PDF document text
    • http://tejebuv.gregorywsaxton.com/uploads/1/3/1/4/131438309/ronon.pdfIn PDF document text
    • http://files.create-diy-online.com/uploads/1/3/1/6/131606408/gajurawagin_bodidusuk.pdfIn PDF document text
    • http://jugizeko.pvtennisclub.com/uploads/1/3/1/3/131398140/mixuwonikafu.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/1/0437/9266/2688/files/bekibajaxovanuxobes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/1329107915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4077/6093/files/lafofadu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1411/1903/files/migafedolaxezafav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1163/7401/files/32786101481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5511/9520/files/frostpunk_console_commands.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8194/8567/files/bidale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1212/6882/files/36506565129.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
🗂 Part of campaign: create-diy-online.com 6 samples

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_off00006730.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6730 5440 bytes
SHA-256: a98bde5ce359bc54853e2bc09d28db9a94f6a5510c46389e1aec358d0f1bfa3b
font_01_sfnt_off000079ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x79AE 9988 bytes
SHA-256: fe0af8bb62fe105c201ae9d883c4b539808e1270a7f7c9670481cafd84fdb086

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