Malicious PDF — malware analysis report

Static analysis result for SHA-256 7914f16c70729237…

MALICIOUS

PDF

43.4 KB Created: 2020-08-12 20:03:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 94a6edb2aa6ac52656c1667c060ad5b2 SHA-1: 31ac0033d331dd490c48523c9da881a3f463099b SHA-256: 7914f16c707292379b439e3a5d0e8842006d723763721e90d242767b5111c95c
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which are hosted on Shopify and appear to be part of a link farm designed to mimic legitimate documents. A critical heuristic identified a link to a known malicious redirector infrastructure at 'https://ttraff.cc/wb?keyword=order%20decimal%20numbers%20worksheet'. This suggests the document is intended to redirect users to malicious sites, likely for phishing or malware delivery.

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/wb?keyword=order%20decimal%20numbers%20worksheet In PDF document text
    • http://files.sancreedparishcouncil.org/uploads/1/3/2/6/132682076/c55c89832489c.pdfIn PDF document text
    • http://juvil.meridiansshiatsu.com/uploads/1/3/0/8/130814011/danivekum_sasirujokim_vevolepovex.pdfIn PDF document text
    • http://files.carriesrealworld.com/uploads/1/3/2/6/132681517/tofijururi-bezar-wuburem.pdfIn PDF document text
    • http://files.louisnyikon.com/uploads/1/3/1/3/131383838/sowumikazuzik.pdfIn PDF document text
    • http://resan.travelwithcarnetha.com/uploads/1/3/2/7/132740285/dujigibaxaw.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/1/0434/5934/6582/files/neutrino_hypothesis_of_beta_decay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0722/1658/files/fezofegajip.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3308/4575/files/posilagajofegemef.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0444/2108/7398/files/tybsc_cs_syllabus_mumbai_university_2020_19.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1279/2221/files/marathi_kadambari_download_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1324/9944/files/aha_acls_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5468/6617/files/kemexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3628/5860/files/darklight_memento_mori_rules.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4334/0956/files/93264093415.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4958/2743/files/typhoid_fever_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6214/0840/files/59762361809.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/kmov_doppler_weather_radar.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 2

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_off00006af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF0 5500 bytes
SHA-256: 5c7b2846db4f05a498945b64ad6659968a87d57dc6aa19b5659b12fa5e9ae27e
font_01_sfnt_off00007d7f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7F 10464 bytes
SHA-256: a9e52c1c9a75e1ea6caecab78295217254e6154bfd65176237e03c8ddf37fc10

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