Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc9b3d6e7dc36016…

MALICIOUS

PDF

53.8 KB Created: 2020-08-01 06:29:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: e728dc9df904a4ad60558a38d2ae8c56 SHA-1: 988c161313690ec08e1707e870df45c39c9245c4 SHA-256: fc9b3d6e7dc36016e6bf7702a2b4c7256431a186d73900a4e66a5d75ab7c21b4
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to traff.com, disguised as a Merriam-Webster dictionary lookup. This suggests a phishing or malware distribution attempt. The ML classifier strongly supports the malicious nature of this PDF. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

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=merriam+webster+dictionary+pdf In PDF document text
    • http://files.dporganizing.com/uploads/1/3/0/7/130776058/37e1b3fdc7303a.pdfIn PDF document text
    • http://files.gracebaptisthartsville.com/uploads/1/3/0/8/130813757/4363511.pdfIn PDF document text
    • http://files.ancienthand.net/uploads/1/3/0/9/130969154/720931.pdfIn PDF document text
    • http://files.onestepforwardinspirations.com/uploads/1/3/0/9/130969354/bebanutoluwile.pdfIn PDF document text
    • http://files.professorwillis.com/uploads/1/3/0/9/130969819/3536095.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1701/9292/files/79245974051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1740/3559/files/worikag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7263/2470/files/36629174000.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6875/2023/files/fukilapokifajanasago.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tanedikefiresemur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8576/6561/files/49340052242.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4797/5062/files/didokulaligupewa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0465/6797/files/regile.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7353/5138/files/befevavusaxigo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9424/4516/files/wizajiliri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8944/4510/files/36500305520.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/2915/7272/files/xovikipe.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006bdb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BDB 5396 bytes
SHA-256: f526360ad1048b9bc41e76f474b78ce3c70f5ae79a64aa8ba12a812ac25f5985
font_01_sfnt_off00007e28.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E28 11504 bytes
SHA-256: 4fcab9e8c71f1c6c4eea867ea504f64133249f52e1e11232eee75046bbf26d83
font_02_sfnt_off0000a3fc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA3FC 16820 bytes
SHA-256: cac148788f3bfa1bf0c404b5350c0549ab072eca5b07f651a878590cac4b605c
font_03_sfnt_off0000baed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBAED 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3