Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0321e5d7d6d5ae9…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 19:44:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 30594cafb80edb7a0d9d7ce0e6c3993b SHA-1: aed9e103b456fbaf5fa699d5125983d728186a9f SHA-256: c0321e5d7d6d5ae91f80e23a1b0395d17ba7d21319306d171eee9b414b88ca9f
202 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 of which point to shopify.com domains, but one critical link redirects to a known malicious redirector at 'ttraff.ru'. The document body text, though partially corrupted, includes the phrase 'basic life support pdf red cross' and the malicious URL, suggesting a lure to disguise the malicious redirection. The presence of a visual download button further supports a malicious workflow.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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.ru/pify?keyword=basic+life+support+pdf+red+cross In PDF document text
    • http://files.theccoproject.org/uploads/1/3/1/8/131871405/8890724.pdfIn PDF document text
    • http://files.nurtureandnature.org/uploads/1/3/0/8/130874569/pinikop_bakiloxufudom_xumuk_lizitewupu.pdfIn PDF document text
    • http://files.peterschipper.com/uploads/1/3/2/6/132682892/7948539.pdfIn PDF document text
    • http://files.empressboatclub.org/uploads/1/3/0/7/130739747/322848.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/1/0430/1458/6521/files/gazelaxoneseluxodi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5850/3573/files/29004957411.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/20726054751.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9164/6880/files/90113573573.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3065/9750/files/zemidoxivoxega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8472/3864/files/rosetta_stone_french_torrents.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6453/9798/files/38664481585.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/8398/7096/files/lemedivarutoto.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4074/3329/files/62629849946.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8640/5022/files/class_a_b_ab_c_amplifier.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0378/1015/files/investor_presentation_example.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 5

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_off00006477.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6477 5200 bytes
SHA-256: 066678b7ad22d15251553035db9629dc9a4ffd5d3e1b350511fbfb004c83fae5
font_01_sfnt_off00007639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7639 10676 bytes
SHA-256: 02e01a4e16dcc5a88bbd54750d10109e4f4080ff056c0e940f41b834ec3bff4b

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