Malicious PDF — malware analysis report

Static analysis result for SHA-256 63b6131f558f0f1e…

MALICIOUS

PDF

40.8 KB Created: 2020-07-24 02:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9fd8e97b1ba78d39874b6cbc0e77d5c4 SHA-1: 6d8bed5755c85f4fa67a86d876b321cd5b55abcf SHA-256: 63b6131f558f0f1ea7e4fd87010ace8c51dfc49cd33ec55da005983374d964f7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document contains a link farm pointing to numerous PDFs hosted on Shopify, likely for SEO manipulation or to obscure malicious redirectors. The primary redirector URL, 'https://ttraff.com/pify?keyword=birthday+wishes+images++with+name', is flagged as malicious. While no scripts were extracted, the PDF structure and embedded links suggest an attempt to redirect users to potentially harmful content, possibly for phishing or malware delivery.

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.com/pify?keyword=birthday+wishes+images++with+name In PDF document text
    • http://files.craftgalleryohio.com/uploads/1/3/1/0/131069819/ee91e29ded.pdfIn PDF document text
    • http://files.karenglinski.com/uploads/1/3/1/3/131384442/komixevepidas.pdfIn PDF document text
    • http://files.maghknog.com/uploads/1/3/0/7/130775520/8349013.pdfIn PDF document text
    • http://files.villalaurus-enluberon.net/uploads/1/3/0/8/130873810/lewusob-fafomovetodi-pilazun.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/1/0430/3867/1010/files/resepiwojekowirit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jokixud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4675/5734/files/fesiguvabinawasudilawiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1697/7559/files/37064494843.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4829/files/wufijuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5782/4419/files/51889848861.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6411/2805/files/wimewenadasolipodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41841620016.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8038/4674/files/2562154605.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/36103472339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3095/3627/files/33738006429.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2358/8773/files/befefe.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_off000063be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63BE 5128 bytes
SHA-256: bfc5737070a13262b8e737e9b62906449ccac5e15ae8de858c6aca95011f8704
font_01_sfnt_off0000751a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x751A 9548 bytes
SHA-256: 352caaef432225febc1f42ef12b1b697df1af9c670d3db924cfdfa77e461e5e2