Malicious PDF — malware analysis report

Static analysis result for SHA-256 867f09105bf065dd…

MALICIOUS

PDF

50.5 KB Created: 2020-07-29 22:32:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6737473228d90197f5a4f33d1b95a000 SHA-1: fa952af060623ff9dc7d0786291aa6c57c405fb7 SHA-256: 867f09105bf065dd5e1198f658736c39520a423d49e65e733a85995f856e37b7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links that redirect to a known malicious domain, likely as part of a phishing campaign. The document body, though heavily obfuscated, suggests a lure related to customs declarations, aiming to trick users into downloading further malicious content. The presence of multiple SEO-optimized links further supports the phishing pretext.

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=customs+declaration+form+philippines+pdf+2020 In PDF document text
    • http://files.ctknj.org/uploads/1/3/0/7/130776499/7660079f0.pdfIn PDF document text
    • http://files.biggsbassethounds.com/uploads/1/3/0/9/130969206/3942760.pdfIn PDF document text
    • http://files.sharpexteriors-ar.com/uploads/1/3/0/9/130969489/zipajubopuva-xogus.pdfIn PDF document text
    • http://files.deafplanetsoul.org/uploads/1/3/0/7/130776401/b0e27.pdfIn PDF document text
    • http://files.cottagemusicjunior.com/uploads/1/3/0/8/130815009/833fd2c2942.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/1/0430/3205/1873/files/72750614084.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9229/6359/files/lijujeluza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8812/4835/files/fusegusa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1751/0818/files/48965385314.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7307/7409/files/gunizonepozuretutuzuwopu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6972/5080/files/81005637873.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8489/7692/files/28663656464.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2661/1357/files/soteratekesiveni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1712/6563/files/fubiveze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8253/8403/files/biworesovuz.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_off000081c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81C4 5572 bytes
SHA-256: 40633ea04f526c6c4c1670b7f2eb1e4e8dbf7fcc20d32528a432d79c00060b51
font_01_sfnt_off00009487.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9487 12500 bytes
SHA-256: 248322ea3d32fe69f3e95e2bc4e7e329659d6870c3cb1a8fba5b50143998120d

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