Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2be26635ba2dbc…

MALICIOUS

PDF

44.6 KB Created: 2020-08-11 07:39:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 47ce8f5de77804b9d835330e09ef0697 SHA-1: c321be41b1e9c1c628f9530d9c5ca67ebb0b0d62 SHA-256: 3a2be26635ba2dbcd9f3582158a45356e05bf72b4e624610f7adf2e224075d0f
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a direct link to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=bemba+proverbs+and+meaning+pdf'. This indicates the document's primary purpose is to redirect users to potentially harmful content. No scripts were extracted from this sample.

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=bemba+proverbs+and+meaning+pdf In PDF document text
    • http://files.acityonahillphotography.com/uploads/1/3/0/8/130874588/netekokeb.pdfIn PDF document text
    • http://files.biggreenadventuretours.com/uploads/1/3/0/7/130775509/8a3783.pdfIn PDF document text
    • http://files.sunbirdtravels.com/uploads/1/3/0/7/130775382/8820730.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/1/0429/6019/1641/files/numuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/kejirovebexoxabon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/80278007767.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0269/1743/files/konamizixogixunolet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9158/2357/files/wild_magic_table_dnd_5e.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2679/2100/files/7532829033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/vujunuvitiwowus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/search_a_in_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3365/6476/files/70584906312.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7583/5806/files/wipifejutojirekixu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1760/1181/files/xopitodirakuviluxizu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1425/7820/files/migejoseriwuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9440/0414/files/buell_xb12_service_manual.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_off00006f38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F38 5580 bytes
SHA-256: 3b223a0eb321bcd8916bed06f9754219e8236cbb55676c4787c41b6e9907f9b7
font_01_sfnt_off0000821e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x821E 10360 bytes
SHA-256: 5913426823d8adccb5061de7e6aa0f67a6ab8b579a03f01dbb51c88fb91f2717