Malicious PDF — malware analysis report

Static analysis result for SHA-256 5bc0c07e4b5212fe…

MALICIOUS

PDF

40.9 KB Created: 2020-08-24 18:26:55 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a171379a4ee961389624a54bf9e11571 SHA-1: 04a3691d74aa09013b3dd620b7de1e39b8e55678 SHA-256: 5bc0c07e4b5212fe87e8f6965b1db1b2531b80f71ca086441227822fd81dda5e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous links, many pointing to a redirector service, indicating an attempt to lead users to malicious content. The ML classifier strongly flagged this PDF as malicious. The primary lure appears to be a fake manual download, redirecting through `ttraff.com` to potentially harmful 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=cintiq+22hd+touch+manual In PDF document text
    • http://files.crystalwands.net/uploads/1/3/0/9/130969151/naliniwukosexovu.pdfIn PDF document text
    • http://vofab.risacromer.net/uploads/1/3/0/8/130873995/tatelapodunixavim.pdfIn PDF document text
    • http://files.gtc-elite.org/uploads/1/3/2/6/132682570/netefikuvuboz_fifajog_jubakafa.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/1/0427/6181/4172/files/cone_beam_computed_tomography_in_endodontics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6594/7800/files/vagasasozotuzuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0881/1427/files/why_bind_this_in_react.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9008/1944/files/robogatovatakikijid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1687/1326/files/ag_barr_annual_report_2012.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2956/9429/files/fogam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8023/4661/files/nirux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1797/7504/files/luluvoxolenu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/5176/0281/files/28737831303.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8362/files/gst_amendments_for_nov_2018_ipcc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7027/5236/files/7951637792.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/jexedakupijekavariwatore.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8978/0124/files/autumn_leaves_guitar_sheet_music_free.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_off00005e56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5E56 5068 bytes
SHA-256: d1ad368bd5e0937d5559dc51c81c7d922a4733e0ff8c7d01dfabaf6eba9ff140
font_01_sfnt_off00006f61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F61 13732 bytes
SHA-256: 5dc9ce85172f0866bf81a48ed780c5824c4ccb851c024cbb2cd9cc2c9e07542c

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