Malicious PDF — malware analysis report

Static analysis result for SHA-256 40768835c5ac4d74…

MALICIOUS

PDF

37.3 KB Created: 2020-08-27 21:41:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9b5de0db6b35fbe9778fefcb7809bc2b SHA-1: 77d23a00e55d22281328e1294b0f7712da46d70f SHA-256: 40768835c5ac4d745056f18c90832543c03e4f8b40449f0b14d824eba049d99e
194 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraffic.com, which is designed to redirect users to further malicious sites. Additionally, the PDF hosts a large number of external links, many of which are to Shopify domains, suggesting a link farm or SEO abuse tactic. The ML classifier also strongly indicated maliciousness. The primary attack pattern involves luring users through a link that ultimately leads to malicious infrastructure.

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=tivo+live+guide In PDF document text
    • http://files.alenaephotography.com/uploads/1/3/0/9/130969761/zuluwajuzoziluraj.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/1/0433/1149/7366/files/sugepikanukapoxunew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7379/7284/files/12231617065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/46058814366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8833/9361/files/murogiforuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1126/7990/files/viwogoreg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/sabowumiluwibi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4484/7266/files/xcode_could_not_locate_device_support_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2391/7478/files/kiwemenuvoroxaxulezefil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0941/6095/files/peer_assessment_rubric.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2392/5402/files/xogurazijawajoriloloxiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3041/2454/files/84441491802.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 5

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_off0000579c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x579C 4520 bytes
SHA-256: d53fe579847597ad98d18ed2cc2a203f3434061fa0ea51650cc9cd559eac02bc
font_01_sfnt_off00006716.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6716 10004 bytes
SHA-256: ad18ebc671ff7d153a270bc2f749831277a4c2d2a0d24a3d5202bbe1301481e2

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