Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec7e3122ecccb2e0…

MALICIOUS

PDF

44.4 KB Created: 2020-07-30 04:16:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: cff1c6f863f00afd2cf76665d290dfce SHA-1: de5b963c57496287b1e9e881ffd5ba4c74e40efa SHA-256: ec7e3122ecccb2e00448126286de5d0be579a0d209f6304952276c182f84a82c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains multiple links to redirector infrastructure, specifically `https://ttraff.com/pify?keyword=feathered+dinosaurs+the+origin+of+birds+pdf`, which is flagged as malicious. The document body, though heavily obfuscated, suggests a lure related to a PDF about "feathered dinosaurs", likely a phishing or scam attempt. The presence of numerous external PDF links, many pointing to benign Shopify domains but some to unknown domains, indicates a link farm designed to obscure the malicious redirector.

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=feathered+dinosaurs+the+origin+of+birds+pdf In PDF document text
    • http://files.southcliffcommunitygroup.com/uploads/1/3/1/4/131483386/1079273.pdfIn PDF document text
    • http://files.garethworthington.com/uploads/1/3/2/8/132814097/49401c4b.pdfIn PDF document text
    • http://files.petesmentalhealthtravel.com/uploads/1/3/1/4/131406506/a1329bb5065.pdfIn PDF document text
    • http://files.regenbiopharmainc.com/uploads/1/3/1/3/131398360/kizorasapesavu-pegurepijejano-rigut.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/1/0430/7730/4484/files/8451077206.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/31752343116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8866/7033/files/95815525306.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0183/8744/files/7607947038.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8352/1445/files/xetuwudupumadi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9516/2022/files/tubadivuxukeri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8638/8136/files/rawigokif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/2656/0677/files/zabimixejijefenixumizok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6418/8312/files/72512212171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6955/4329/files/89746365563.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4513/5260/files/jazukizojimamijawimosev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2638/9912/files/jefiguvarijud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4519/0821/files/2762592243.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: regenbiopharmainc.com 3 samples

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006f8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F8F 5248 bytes
SHA-256: 52eb22f66058ed207f6b95b88abb55c5b18d1d15b36e25b85c34a1656b2a7e41
font_01_sfnt_off0000815c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x815C 10180 bytes
SHA-256: 37f79a20e9dd4c1d6346eb39ceccfa318b71bc95f6185d2f1f0ab794e64eda93