Malicious PDF — malware analysis report

Static analysis result for SHA-256 76b706d72bc8c5fd…

MALICIOUS

PDF

37.7 KB Created: 2020-08-16 15:49:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3440e8ff794467119ecd1e3b63b559bc SHA-1: a0c2793d851f735b49e6fa57cacb00eac8edcf90 SHA-256: 76b706d72bc8c5fdd9f5340520e1c9fda5a5d0106b625eae942c0727a8ca2b18
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating malicious redirector links and a link farm, specifically pointing to `https://ttraff.com/pify?keyword=cdate+sql+report+builder`. The document body, though partially obfuscated, also contains this URL and references to other PDFs hosted on Shopify, suggesting a phishing or scam lure. The ML classifier strongly flagged this PDF as malicious.

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=cdate+sql+report+builder In PDF document text
    • http://xumevazu.chesterandellie.com/uploads/1/3/1/3/131379021/fuvamuseneber_famegaxupijiv.pdfIn PDF document text
    • http://gufizabur.conservationoffineart.com/uploads/1/3/0/9/130969300/9497966.pdfIn PDF document text
    • http://files.aberdeenlatinschool.com/uploads/1/3/2/7/132740564/66c3aeb1e9.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/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0489/5143/files/building_drawing_plan_elevation_section.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3302/5960/files/34144905846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5272/0543/files/mutagiput.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/79265304831.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2837/2904/files/4564431415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2880/6808/files/24389393344.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2040/2337/files/sivovufogifutilutokilaso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8734/5304/files/refuju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4907/4336/files/95420088.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: aberdeenlatinschool.com 3 samples

Related samples 4

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_off00005416.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5416 5124 bytes
SHA-256: 847d37a2e78a84431b561eeb3e8e145021940bc43f1ae98b16d472da9777ef75
font_01_sfnt_off00006582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6582 10924 bytes
SHA-256: 9215913b0de5288865ab073184d53e3d2ef2f2e48dc7d9b56fb0b20a0dc76dc6

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