Malicious PDF — malware analysis report

Static analysis result for SHA-256 626ffb01253adec8…

MALICIOUS

PDF

68.9 KB Created: 2020-08-05 16:09:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 67b373a7cb906f144795fa900615ce90 SHA-1: 72c5b13ec1251ec9e8bf2fede58a5f43dcb5cb9f SHA-256: 626ffb01253adec8f1276b4b4034df1410e9f5842018a0e0aad6854498df47c4
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a redirector at ttraff.com. The document body, though obfuscated, also contains this URL, suggesting a phishing or scam attempt. The presence of numerous external PDF links further indicates a link farm designed to drive traffic to malicious sites.

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=risk+management+in+islamic+banks+pdf In PDF document text
    • http://files.warkprimaryschool.co.uk/uploads/1/3/1/3/131380158/3763230.pdfIn PDF document text
    • http://files.aikenpsr.com/uploads/1/3/1/8/131872079/lazabudibinanet.pdfIn PDF document text
    • http://files.worldofpeaceandlove.com/uploads/1/3/0/9/130969312/498de746ddf09.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/1/0433/0140/4830/files/bagubotifedufusofufik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kufotiniponekurek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3713/0914/files/factorio_blue_science.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7393/6291/files/61446762507.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6866/1670/files/92595322990.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1867/1512/files/casos_practicos_de_auditoria_administrativa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8039/1585/files/69792361771.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4373/4172/files/tukosefegodaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/lego_star_wars_games_empire_vs_rebels.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/wibesasonetolen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5477/5970/files/tomomojisezovisisozon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6666/1791/files/20245196535.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9268/0611/files/82588876629.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9460/5975/files/kafoxuzoviluruxes.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_off0000cf4c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF4C 5588 bytes
SHA-256: b7b6c1b479d2bb07ffe00d9eb43645f38feb4eb402dd1158bf4add6225e98124
font_01_sfnt_off0000e244.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE244 10572 bytes
SHA-256: f7140493cd64957cffac2b2c3d6e53956a1c789c1b8096ad16ac45cf3a7a955f

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