Malicious PDF — malware analysis report

Static analysis result for SHA-256 a88d2deb876f8627…

MALICIOUS

PDF

42.2 KB Created: 2020-08-12 18:54:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1fe9a21619f9d9b64bb1f2296f5c8391 SHA-1: c122261c101dd7960d1beb021b615c642862b503 SHA-256: a88d2deb876f8627c20046fa22128b27fd19bf05417b6982ed46574208d557f0
194 Risk Score

Malware Insights

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

This PDF file contains a critical heuristic firing indicating it links to known malicious redirector infrastructure. The embedded URL 'https://ttraff.com/pify?keyword=bancassurance+in+europe+pdf' is likely the initial lure. The document also contains a large number of external PDF links, many hosted on Shopify, suggesting a link farm or SEO poisoning tactic to distribute malicious content. No scripts were extracted, but the presence of malicious redirector links strongly suggests a phishing or malware delivery attempt.

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=bancassurance+in+europe+pdf In PDF document text
    • http://files.anchoredhomedesigns.com/uploads/1/3/0/8/130874544/7491834.pdfIn PDF document text
    • http://files.ambatilab.com/uploads/1/3/1/3/131381237/3e8eb3.pdfIn PDF document text
    • http://files.susanhandelman.com/uploads/1/3/2/7/132740270/f508e65218c.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/1/0437/0818/6792/files/toefl_speaking_topics_with_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8004/7010/files/98974702068.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40369191557.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9496/6436/files/9938448901.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8987/7405/files/51473862631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7730/2427/files/65714925526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1960/6936/files/punipafokino.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6808/7701/files/vukeb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2763/5096/files/bribery_in_business_ethics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3123/0624/files/jibebu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0703/9895/files/63676119388.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 8

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_off000066ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66ED 5164 bytes
SHA-256: 474ed2c5a3da7354fa7625adc329aa0b0109d60c33b3c4adb490974e18f6055f
font_01_sfnt_off00007887.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7887 10420 bytes
SHA-256: 96413d800ee287efb771231df19d7f8877aff57533950f090e8f9ed5679f6b0e

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