Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ccbab6ca7be4fb…

MALICIOUS

PDF

41.8 KB Created: 2020-08-26 05:55:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8757d82714861d0bea8c994ea70d503a SHA-1: 84b18eb160ab145d7761769c0d8c13fddfabd636 SHA-256: 06ccbab6ca7be4fb3b7f0248a3f268d90cf500a91c946d7232ea190bf326f604
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a primary redirector pointing to a URL associated with SEO spam and free download lures. The ML classifier strongly indicates maliciousness, and the presence of numerous links suggests an attempt to distribute or redirect to malicious content. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a phishing or content-luring campaign.

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.ru/pify?keyword=download+big+sean+album+free In PDF document text
    • http://files.expeditiondrenched.org/uploads/1/3/1/8/131871739/jodisaviropebifu.pdfIn PDF document text
    • http://files.chrismhoward.com/uploads/1/3/1/1/131164314/taborimokolisido.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/1/0429/6772/8279/files/17799153626.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1880/5657/files/23272825158.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3032/files/bamboo_daal_ke_naa_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8173/6096/files/lidadakelur.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7173/2889/files/bsc_new_syllabus_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8572/5857/files/serer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1966/4540/files/free_donation_form_template_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3137/9618/files/sazarusoguwufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9032/2342/files/biwiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5674/2046/files/98147188921.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/45742162458.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/gegexovikorojirokelaxedu.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 1

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_off00005cac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5CAC 5460 bytes
SHA-256: ff9e0f1247b50047022c7b3b9a82c91fa4eb18120e486ad767ca284b952a4a5c
font_01_sfnt_off00006f33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F33 13444 bytes
SHA-256: 83c58c50a819c4d9b1b1e5cf0f45b17cbc26fc042b1ced018ce00a8c764db239

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