Malicious PDF — malware analysis report

Static analysis result for SHA-256 18ed22ead825849e…

MALICIOUS

PDF

51.6 KB Created: 2020-08-09 07:34:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4153c2b7a335f8bb28bce2a79632b156 SHA-1: 7341ddcb09327a455766d72e5c5c8481502304db SHA-256: 18ed22ead825849e82a08eb8f453a9b05eacaf31606276b4e98049f8afb5ea3e
234 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically `https://ttraff.com/pify?keyword=the+canon+s+yeoman+s+tale+pdf`, which is also used in a brand-impersonation lure for Norton credential phishing. The document also hosts a large number of links to other PDFs, likely for SEO manipulation or to distribute further malicious content. No scripts were extracted, but the presence of malicious links and the impersonation attempt strongly indicate a phishing or credential harvesting campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://ttraff.com/pify?keyword=the+canon+s+yeoman+s+tale+pdf.
  • 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=the+canon+s+yeoman+s+tale+pdf In PDF document text
    • http://vodal.sachdevwc.com/uploads/1/3/1/4/131437423/451088.pdfIn PDF document text
    • http://files.noemiddleschool.net/uploads/1/3/1/4/131406780/9504701.pdfIn PDF document text
    • http://files.zionkearney.com/uploads/1/3/0/7/130775462/lavilivinosegex.pdfIn PDF document text
    • http://vurapoxu.mountainstreamchurch.com/uploads/1/3/1/6/131607163/pajonufogigisag.pdfIn PDF document text
    • http://files.foosie.store/uploads/1/3/1/4/131437725/ragubezudabuj_wefuge_wukovap.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/1/0432/2181/1362/files/voxuritu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4647/8758/files/95224884831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9431/7981/files/kibulewikemutovarokuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8042/4351/files/buzulugefixob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9805/4558/files/payroll_accounting_system.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4031/8375/files/rirezoxikinebatemufef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0451/4234/3833/files/les_adjectifs_numraux_cardinaux_et_ordinaux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6137/1290/files/62733946189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/xijotuxaxevofivelasoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4742/6965/files/80760188869.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7130/5896/files/navalifalokemova.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/12729031526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0179/1132/files/ruperusamesabumuzi.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: noemiddleschool.net 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ce8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CE8 5352 bytes
SHA-256: 45c70052266c3e411b164d491586af7fab4c90e0c147c8acf40c64af17a1bb94
font_01_sfnt_off00009f05.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9F05 10076 bytes
SHA-256: 02788457e301b1332b3732a54ae0d92e8c8aaf04ff9cfe225e492301d7b5364c