Malicious PDF — malware analysis report

Static analysis result for SHA-256 7487e345929fd8c3…

MALICIOUS

PDF

34.4 KB Created: 2020-08-19 11:59:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5c980a9377e15ff6b9ecff9b691ebd8e SHA-1: f3fa60510ddd6962b51feae749d332ae53ea5267 SHA-256: 7487e345929fd8c3bf0da240c9a09458202ca528a96f55970c30a7bb04a81e7d
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector at 'https://ttraff.com/pify?keyword=bouncing+off+the+walls+phet+answer+key'. The document body, though heavily obfuscated, contains text suggesting it is an 'answer key', a common lure for phishing or malware distribution. The presence of many external links, including to Shopify, indicates an attempt to create a link farm for SEO manipulation or to host further malicious content.

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=bouncing+off+the+walls+phet+answer+key In PDF document text
    • http://files.rebeccalindell.com/uploads/1/3/2/6/132695517/dagajaga.pdfIn PDF document text
    • http://files.selectent.com/uploads/1/3/0/7/130776131/luzud-roxutisiw.pdfIn PDF document text
    • http://files.nydiamondcenter.com/uploads/1/3/1/1/131163643/2398998.pdfIn PDF document text
    • http://files.ikaruscoffee.co.nz/uploads/1/3/1/1/131163684/lotobaxoxogadik.pdfIn PDF document text
    • http://loguz.hillandstump.com/uploads/1/3/0/7/130740026/foxowoma-kazujorek-xogivev-rolazatumafebin.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/1/0428/7237/3414/files/takipemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5301/4423/files/321946332.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4678/0566/files/vinetira.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7023/4524/files/18839172366.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8107/1782/files/xegejaxip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8955/9705/files/wikiwod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2561/3475/files/41261564345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5145/6411/files/kotaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1864/1830/files/enlaces_covalentes_no_polares.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8363/6644/files/at_long_last_asap_sharebeast.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_off00004691.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4691 5584 bytes
SHA-256: cb3dd89c4e9143138e866f3d1d3caf7e1d8dc096befcccb1f56710c82289f844
font_01_sfnt_off000059ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x59AB 10180 bytes
SHA-256: cd2119d2151d9174eedc6a1c64b1bed19b0d5c569714103044ff5f78b1f5a2d1

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