Malicious PDF — malware analysis report

Static analysis result for SHA-256 caf6f649d12ea822…

MALICIOUS

PDF

49.7 KB Created: 2020-08-10 22:32:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1c0609851f4df325f9b848f87884920d SHA-1: ad94faf440535eb9d83049cb7ad1e7cd7dababb0 SHA-256: caf6f649d12ea822ee155ca5cf3156e2d0dce9569d0c91d72a2609ec440b071c
194 Risk Score

Malware Insights

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

The PDF contains numerous external links, with one critical heuristic identifying a link to known malicious redirector infrastructure. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=biogas+bottling+plant+pdf', which is also present in the heuristics. This suggests the primary purpose is to redirect the user to malicious content. No scripts were extracted, limiting further analysis of the payload.

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.cc/pify?keyword=biogas+bottling+plant+pdf In PDF document text
    • http://files.nimbconnect.org/uploads/1/3/2/7/132741339/7a11bf83.pdfIn PDF document text
    • http://files.hotpinktravel.com/uploads/1/3/0/8/130874012/cc0e2e5.pdfIn PDF document text
    • http://files.submissiontosource.com/uploads/1/3/2/6/132695994/5a5275ee1b.pdfIn PDF document text
    • http://files.makingjoyfulmusic.com/uploads/1/3/1/0/131070611/mowodor.pdfIn PDF document text
    • http://pifuvof.jamespattison.org/uploads/1/3/0/7/130775971/vojatob.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/1/0430/8582/4164/files/wosigoduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4396/2532/files/alchemy_emperor_of_the_divine_dao.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9107/4976/files/xutafugijirifafifojer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6585/8455/files/ontological_security.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4115/1386/files/vuxaxuvuruvoru.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7152/8344/files/dedonetolaned.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6688/4250/files/92267162023.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8929/7568/files/1612147189.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/79114986315.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/tugogesobiwem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8845/4559/files/vasigax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9780/8285/files/1221915588.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 3

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_off000083d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83D3 5304 bytes
SHA-256: f11055940cfe8d829603c8c1d1d987e453d906bf2071f62ac0fd41ad411562b4
font_01_sfnt_off000095ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x95EA 10516 bytes
SHA-256: 2b0173d5908f2cfb2d13e16c2bc13ca9d0f5d8486c0a3a6b83074272d992129d

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