Malicious PDF — malware analysis report

Static analysis result for SHA-256 dab79d6c7966f991…

MALICIOUS

PDF

59.2 KB Created: 2020-07-31 15:18:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2de9ad0fe9b5de07802d73869610327d SHA-1: f87569b531886fe839280e88640660b3d11c42fe SHA-256: dab79d6c7966f991d137143ce3192f68e1510b66380abd856e94bbe96a11220b
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with one identified as a malicious redirector. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK specifically flags the URL https://ttraff.cc/pify?keyword=java+list+of+integers. Additionally, the PDF_SEO_LINK_FARM heuristic indicates a large number of external links, with https://cdn.shopify.com/s/files/1/0431/6332/0471/files/velunatonojeko.pdf being the first identified. The ML classifier also strongly indicated maliciousness.

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=java+list+of+integers In PDF document text
    • http://files.natashadownes.com/uploads/1/3/1/4/131437848/bovepotigejesiw-jifejef-raxofupa.pdfIn PDF document text
    • http://files.yogarama.net/uploads/1/3/0/7/130775071/8069189.pdfIn PDF document text
    • http://files.northwestgrizzlyfootball.com/uploads/1/3/0/7/130775156/2702468.pdfIn PDF document text
    • http://files.hunterandersonrichmond.com/uploads/1/3/1/3/131379118/fefav.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/1/0431/6332/0471/files/velunatonojeko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5464/5916/files/74004355134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8719/9394/files/zegadudazaxuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9657/8979/files/74460069949.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0769/7305/files/sixolejezorepalotonij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/pejuzesuloroxutebed.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5834/0774/files/wuwimurumagetipomozi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0020/7272/files/31548992515.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8184/2341/files/bajuxuramexegifidow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6711/1584/files/82043227653.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3759/5560/files/mavefawib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5166/3012/files/67101209655.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_off0000a0c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA0C4 4772 bytes
SHA-256: 813e858fbd7e0ea6a46d0ba180573d49fb6fd6fe6fa86aa39f18a76ea2648538
font_01_sfnt_off0000b108.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB108 14908 bytes
SHA-256: d533a266ac8096adb57ef6f08733ebf5912d6d3e7872d0bda391f87ec404cbc2

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