Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c8320558fad1c2c…

MALICIOUS

PDF

42.4 KB Created: 2020-08-24 01:02:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a9112a3d0fb40314bc59cb3aab736606 SHA-1: 2fc6ca2cbc638fadf704ab312ee374c885a1df16 SHA-256: 1c8320558fad1c2ce69743653c341c308be1af89e7abeb9f03112b50852b1f7c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to `https://ttraff.com/pify?keyword=ofac+countries+list+2018+pdf`. This URL is flagged as a malicious redirector. The document body contains garbled text and the URL itself, suggesting a lure to a malicious site. No scripts were extracted from this sample.

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=ofac+countries+list+2018+pdf In PDF document text
    • http://files.dahliastudio.com/uploads/1/3/1/3/131381003/saviradovajanes.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/1/0440/2744/5398/files/jirijefijijojawon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3325/6345/files/fulubezu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2471/7723/files/71087180862.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7251/1386/files/apprendre_la_langue_allemande_pour_debutant.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3187/2166/files/karcher_pressure_washer_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7573/9553/files/tagisigopaboletuxek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5733/2895/files/cakephp_3_email_attachment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4702/4805/files/77141097231.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2629/files/metric_bolt_and_nut_size_chart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/70686619693.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_off0000674c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x674C 5696 bytes
SHA-256: f2a58c21b6e22da43a0959b71d54519afa288323291796631a650e701c6a9d12
font_01_sfnt_off00007aba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7ABA 10080 bytes
SHA-256: f1669b2f1b1bab6885c374efe2ab82ecabf7d330398a74120093d1fe7775df50

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