Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ddbbf7de10cc016…

MALICIOUS

PDF

38.8 KB Created: 2020-08-12 20:41:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0bbfded18d9f7f329ad66ccd2fd59ea SHA-1: 8746c1ec63fb91776078d815016321f93b3bd177 SHA-256: 2ddbbf7de10cc016c08970f5775bde6dab7db36af573eab674c3f2e1c170ceaf
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, many pointing to Shopify-hosted PDFs, designed to appear as legitimate search results. The primary link, 'https://ttraff.cc/pify?keyword=makkar+ielts+writing+task+1+book+pdf', is identified as a malicious redirector, indicating a phishing or malware distribution attempt. The document body, though heavily corrupted, contains the lure text and the malicious URL, reinforcing the phishing pretext.

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.cc/pify?keyword=makkar+ielts+writing+task+1+book+pdf In PDF document text
    • http://files.antjedormeyer.com/uploads/1/3/1/3/131383823/kobonizexi.pdfIn PDF document text
    • http://files.thaisrussomano.com/uploads/1/3/1/4/131407921/sumulodotovuluwiride.pdfIn PDF document text
    • http://polekov.somersetrehab.com/uploads/1/3/0/8/130874038/gadomovenujabep-mujid.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/1/0435/6017/3717/files/bijote.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0724/4450/files/rapezufek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/94247432885.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8950/2110/files/vonep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5355/files/36613213487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4947/6518/files/23276103988.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8512/8099/files/2007_jeep_commander_repair_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/rarepafubufamowaritorusam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0100/4707/files/bavave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3699/0885/files/84740074323.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4949/1359/files/30103319921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4852/5208/files/88807059234.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_off0000593d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x593D 5564 bytes
SHA-256: 4c266ca6f7fde4c36d6461753320914b349f2097d93b467654e2d8154bff6be7
font_01_sfnt_off00006c50.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C50 9924 bytes
SHA-256: c042ddfa519313db3c67a1d839d0b5d4ebff28d3663b0ce2f67fddf33edd5af0

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