Malicious PDF — malware analysis report

Static analysis result for SHA-256 444a5d8d1ea46a5f…

MALICIOUS

PDF

56.2 KB Created: 2020-08-26 02:48:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7fa8d0d21c288a9a9e9b1b2fba949703 SHA-1: d9fa20119371fe2ab2aa720c86d9d75aca98652d SHA-256: 444a5d8d1ea46a5f1c9860e67a56a3325fd6a64bdeef49d0bdc9d3ac263653bf
234 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.cc/pify?keyword=manual+de+reparacion+chevy'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, likely for SEO poisoning or distributing further malicious content. The document body, though heavily obfuscated, contains the same redirect URL, reinforcing the malicious intent.

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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=manual+de+reparacion+chevy In PDF document text
    • http://files.asampoh.com/uploads/1/3/1/6/131636678/gotem.pdfIn PDF document text
    • http://neriw.bagusnugroho.com/uploads/1/3/2/8/132814930/jakujeni_tukedanijawap_vojedomanilul_lekix.pdfIn PDF document text
    • http://files.hiphopandhomeruns.com/uploads/1/3/1/4/131437977/9731066.pdfIn PDF document text
    • http://files.rvrescueart.com/uploads/1/3/0/7/130775668/tadol_togeb_jukibezutabaw.pdfIn PDF document text
    • http://files.gptrackxc.com/uploads/1/3/1/8/131871416/b403ba7899391d.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/1/0434/8254/6341/files/junizafega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9290/8963/files/49637261566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2741/4696/files/1307754204.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3006/0955/files/xojewomuminamif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4339/5483/files/broncopneumonia_canina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8692/0347/files/fixiwewaxegimara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8702/6581/files/90836365392.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1562/files/17182487127.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_off00009cfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9CFC 5148 bytes
SHA-256: c40dde91ce7d43e08c7ad98a3eb959bad4e16bd94a32ffb8ab6286593052e663
font_01_sfnt_off0000ae7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAE7E 11004 bytes
SHA-256: 9ac091318e712c94851f3607d87a7575e71fdee14e2328255754c495fa769318

Open this report in the interactive analyzer, or submit your own file for analysis.