Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e136facd28ad387…

MALICIOUS

PDF

51.8 KB Created: 2020-07-27 21:38:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7c976ab8ab047f04b53b901ca589aca4 SHA-1: 8b92c702e87ad11097da062d2dc65c710ba4c8fa SHA-256: 9e136facd28ad3877a8f3b6abbb494dd97dbdac8c6cfab1302fc5d0142064683
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, a common technique for SEO poisoning or creating link farms. One of the primary links directs to a known malicious redirector, ttraff.com, which is likely used to obscure the final destination of the malicious payload. The document body itself is heavily obfuscated and contains metadata indicating it was generated by wkhtmltopdf, suggesting it's not a typical user-created document.

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=hand+embroidery+stitches+video+free In PDF document text
    • http://files.vanislandvehicledesign.com/uploads/1/3/1/3/131380596/997cfa.pdfIn PDF document text
    • http://files.mabellephoto.net/uploads/1/3/1/6/131606390/xalezebu-razalifinufiwop.pdfIn PDF document text
    • http://files.ixoramemphis.com/uploads/1/3/0/7/130739344/3451634.pdfIn PDF document text
    • http://files.haleybgreen.com/uploads/1/3/1/4/131452733/mozevir.pdfIn PDF document text
    • http://files.thephoenixflyer.com/uploads/1/3/0/7/130740212/saxutoruru_netatose_timelage.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/1/0433/2906/1014/files/jipikamedegukekiput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1300/5724/files/sipirukufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6509/8908/files/43357692041.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6787/files/44253719492.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6486/0580/files/jebolibefigobezoramab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1416/8480/files/24875306593.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43034806536.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6422/2101/files/11464517017.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5777/3718/files/bavunalujuvitisonusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1450/4093/files/40699961060.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9436/8671/files/76655837312.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 7

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_off00008154.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8154 5280 bytes
SHA-256: 76b0d76703f2ed683c037c59ae1de8a56df621a1aa9cb0131dec6a0ca5ed844c
font_01_sfnt_off00009315.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9315 14508 bytes
SHA-256: 6271499e37146c847013bed512b235a99556eda55658ae1229ea592dd7a22e6d

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