Malicious PDF — malware analysis report

Static analysis result for SHA-256 4f425f762604f8aa…

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 21:17:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a62c379d2264aa31af6ba9492e7f1c4e SHA-1: e95db0c0229b185fd970f5462ccde4e928885e73 SHA-256: 4f425f762604f8aa61cb60a38f1b8d419cffe3bf62688a27e4e84842c27eb5f6
194 Risk Score

Malware Insights

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

The PDF contains numerous links designed to create a link farm, with one prominent link directing to a known malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=periodic+table+with+names+and+atomic+mass+and+numbers+pdf', which is flagged as a malicious redirector. This suggests the PDF is a lure to redirect users to malicious infrastructure.

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=periodic+table+with+names+and+atomic+mass+and+numbers+pdf In PDF document text
    • http://nasenini.fireflyfamilydaycare.com/uploads/1/3/2/8/132814930/vakado.pdfIn PDF document text
    • http://files.dynamicwellnesstherapy.com/uploads/1/3/1/3/131379923/sejudubedaviri-bujajak-bomafiratux-gujafokegagido.pdfIn PDF document text
    • http://rifaxax.kindredconnectionsgen.com/uploads/1/3/1/4/131453536/7576340.pdfIn PDF document text
    • http://files.emmareavesphotography.com/uploads/1/3/2/7/132740435/5930381.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/1/0429/7061/1861/files/84130164414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2956/0481/files/bilige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8289/8840/files/46867630699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5042/6780/files/26330577554.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2610/3971/files/85632000191.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3245/3015/files/46387393245.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/tenika.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8277/6725/files/4189842412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4693/5445/files/lugifepenisuwu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9586/8057/files/jutinuvuwujeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0633/6930/files/bulolurowomusobevujerisa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8615/1833/files/circular_motion_file.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2371/8805/files/78559683328.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 6

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_off00006bfd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFD 5628 bytes
SHA-256: a1af7ed2d3f6524415da9d12ec2d0ce41f9632b38d441c18d361b3d4769f121f
font_01_sfnt_off00007ef8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EF8 9732 bytes
SHA-256: 9a7c547648cdf19fd46baeb5323e4a2e2c0bdf8726cbe666839a037b446a0c84

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