Malicious PDF — malware analysis report

Static analysis result for SHA-256 cb7873317b1f19bc…

MALICIOUS

PDF

40.9 KB Created: 2020-07-26 17:00:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 02bdf0f8bf2b8243871efde95753b24b SHA-1: 5fc8d765cf0d2424bf97251f57c6445f9ffe7a10 SHA-256: cb7873317b1f19bc851e1f2863e37d714072e028e4819995528d698cef7da79b
234 Risk Score

Malware Insights

MITRE ATT&CK
T1204.001 Malicious Link T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple heuristics indicating malicious intent, including a link to a known malicious redirector and a link farm. The 'SE_CLICKFIX' heuristic suggests the document is designed to trick users into executing commands, a common social engineering tactic. The primary malicious URL identified is https://ttraff.cc/pify?keyword=bluetooth+4.+0++for+windows+10, which likely serves as a gateway to further malicious content.

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.
  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • 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=bluetooth+4.+0++for+windows+10 In PDF document text
    • http://files.playwithfireproductions.com/uploads/1/3/1/6/131637640/7876238.pdfIn PDF document text
    • http://files.positivelypinckney.com/uploads/1/3/0/7/130739916/9407002.pdfIn PDF document text
    • http://files.surfacedance.com/uploads/1/3/1/3/131380083/fiserijuguwufufotiso.pdfIn PDF document text
    • http://files.ghostinspectors.com/uploads/1/3/0/7/130775249/7430753.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/1/0433/0097/8853/files/56205623830.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8014/6339/files/33354095714.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3333/7768/files/4411728723.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/57896919986.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4777/9478/files/galetudiri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0242/9593/files/nijuwimenalozexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7879/4920/files/63645636646.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4560/0936/files/dezoduxas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8342/3126/files/jajidopi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4257/0402/files/93724075252.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/zizedepavodawowafuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2668/5858/files/79687635553.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_off00006204.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6204 5124 bytes
SHA-256: be8caf7d37332639934bcab91bc728abdac7179ce2c205e518a5b778f5de5d9a
font_01_sfnt_off0000738c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x738C 10356 bytes
SHA-256: 6336cb9d712152ca0c3435c99e4cb397570e8f93b2f34b59812b66a3c91ad232

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