Malicious PDF — malware analysis report

Static analysis result for SHA-256 4afca7e09c256814…

MALICIOUS

PDF

44.9 KB Created: 2020-08-03 08:02:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5a9688d37023283787a7fdc501a82e3d SHA-1: 8f372ab8265a657384273b88e6172153c1fa5f33 SHA-256: 4afca7e09c2568140f9dbd87d67bca5defd7b5a364a86d770eabf056bc471dc0
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, with one heuristic specifically identifying it as a 'PDF SEO Link Farm'. The primary malicious link, 'https://ttraff.cc/pify?keyword=fetty+wap+boomin+mp3', is flagged as a known malicious redirector. This suggests the document's purpose is to lure users into clicking these links, likely leading to phishing pages or malware downloads.

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=fetty+wap+boomin+mp3 In PDF document text
    • http://files.karolynecronin.com/uploads/1/3/0/8/130874422/tavuxerenu_rexavanu_pemeg.pdfIn PDF document text
    • http://files.hagmian.com/uploads/1/3/1/4/131483266/loxatabezog-xuvilogekewigi-gozonozunu-lilop.pdfIn PDF document text
    • http://files.atlanticharmonybrigade.com/uploads/1/3/1/6/131637240/jupolusig-masoviruvixofu.pdfIn PDF document text
    • http://files.fourdaysinchicago.com/uploads/1/3/0/9/130969993/gavuw.pdfIn PDF document text
    • http://files.arabellasheen.co.uk/uploads/1/3/1/3/131383934/1121662.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/1/0432/5523/4710/files/8775320406.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7170/9092/files/daleragejejifapak.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9684/2142/files/68658031046.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4954/7936/files/xizuwitubopubabanu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8806/8254/files/vegexakadiwugozim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/5822877708.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5266/0901/files/parabolic_curve_in_r.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6281/3084/files/2826605951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/giratajolexodomofavewolov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2417/0664/files/rinet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8344/0036/files/kelupafalifaben.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5158/1597/files/14151658582.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pujar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/series_7_exam_study_guide.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_off00007353.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7353 5112 bytes
SHA-256: 10318b5ca03852f531a9604395f098558869caad43e7f617337d4aba9a7c4bdc
font_01_sfnt_off000084c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84C4 9920 bytes
SHA-256: c8a889a3c282ae3c48f04879a7da537eba69152796cbb9d4e0802e905e33d41b