Malicious PDF — malware analysis report

Static analysis result for SHA-256 e67eb37b370df802…

MALICIOUS

PDF

39.6 KB Created: 2020-08-07 23:36:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c5acf15350db8d17a26ba4579db50d2e SHA-1: 2a115792c182b3018aea7955baba9b9451c123c4 SHA-256: e67eb37b370df802ab856544988659cc4f4854b94b20bbe529ba08420a078851
194 Risk Score

Malware Insights

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

The PDF contains embedded links, with one specifically identified as a malicious redirector. The document body, though partially corrupted, suggests a lure related to a 'medical certificate form'. The presence of numerous other PDF links, many hosted on Shopify, indicates a link farm strategy. 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.ru/pify?keyword=formato+certificado+medico+cdmx+pdf In PDF document text
    • http://rudar.universalpatches.net/uploads/1/3/1/6/131607062/bikajeguzimosenipune.pdfIn PDF document text
    • http://files.nadineaboussouan.com/uploads/1/3/1/4/131438823/1577445.pdfIn PDF document text
    • http://files.sinyonshuntay.com/uploads/1/3/2/7/132710603/4b7dbe0253.pdfIn PDF document text
    • http://files.maltipoos.org/uploads/1/3/1/6/131636903/54cf5b5d77.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/1/0431/5702/9019/files/boxuxalotuvebapiwuxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2723/2918/files/34199889590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3128/1312/files/10375212171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9725/0210/files/ffxiv_special_characters.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6845/7122/files/puwuves.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1207/7206/files/19657706008.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/10225267523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3260/8921/files/54147105207.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6280/2070/files/74199122007.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8421/8521/files/vusonexalewabebavupine.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5495/6695/files/47974590592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3543/4901/files/kevagixodiluvi.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

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_off00005ae0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE0 5116 bytes
SHA-256: c2f0d1fb7825146deb28654641d7ed01060e1c429e283b65c877ec6a61318097
font_01_sfnt_off00006c37.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C37 10964 bytes
SHA-256: 6bea7adca75dab29b88a65fae35e2a6f09563042a0768f69aa6d0c684b12852f

Open this report in the interactive analyzer, or submit your own file for analysis.