Malicious PDF — malware analysis report

Static analysis result for SHA-256 0996b235e0fc81b7…

MALICIOUS

PDF

44.5 KB Created: 2020-08-10 17:18:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e0d34f587b572276810822a51acd9b8 SHA-1: 47eb614e38a11bcc18bd2bcfab88fdeb77f2a350 SHA-256: 0996b235e0fc81b7e6629a9e331a1ec7947168353c29d33c01815590dd39e1ea
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (`ttraff.cc`) that is flagged as malicious. The document body, though heavily obfuscated, contains the same malicious URL and several benign-looking Shopify URLs, suggesting a link farm or SEO poisoning tactic to attract victims. The ML classifier strongly indicates maliciousness, and the overall structure points to a phishing or malware distribution 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.cc/pify?keyword=bilge+oil+water+separator+pdf In PDF document text
    • http://files.browardcountyacf.com/uploads/1/3/1/3/131398134/6138813.pdfIn PDF document text
    • http://files.aitorlajarin.info/uploads/1/3/0/9/130969708/618929.pdfIn PDF document text
    • http://tiliguj.gmfcf.org/uploads/1/3/1/6/131636855/60cf6.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/1/0434/2156/5084/files/85054598846.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5684/0354/files/inherit_the_wind.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5892/0605/files/zewadimidalig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1455/9656/files/33857771119.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/4336/7581/files/juvepowew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4583/8239/files/gagufozelelegugasej.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0886/8001/files/xitusiva.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4343/8244/files/cours_d_algorithme_et_exercices_corrigs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9120/5021/files/sistemas_de_almacenamiento_en_la_nube.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/32600433864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0008/5160/files/40410611040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9930/7673/files/39069820895.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 3

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_off00007052.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7052 5348 bytes
SHA-256: e2a8157d69ded96f66656b6f9581063be48c9bd949f86c1886fe1eda81351090
font_01_sfnt_off000082a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x82A2 10152 bytes
SHA-256: f2cd0872084c3d2c9ac9994c3821e7eee51e71c0d2edb900790a248a33eff2be

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