Malicious PDF — malware analysis report

Static analysis result for SHA-256 868453ee2575b73a…

MALICIOUS

PDF

39.6 KB Created: 2020-08-10 06:08:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b0aab322a292d70555bfac22dd0bd998 SHA-1: 3adab437b4e9da97a7ba1ed2e6d830714b61f709 SHA-256: 868453ee2575b73aedd901503ac890e113c1bc03beb0331b757c09884eaf7a46
202 Risk Score

Malware Insights

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

The PDF contains multiple heuristics indicating malicious intent, including links to known malicious redirectors and a large number of external PDF links, suggesting a link farm for SEO manipulation. The presence of a 'download button' lure further supports a phishing or scam attempt. The document body, though heavily obfuscated, contains the URL that triggers the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=learn+russian+for+beginners+pdf In PDF document text
    • http://files.nanopintechnologies.com/uploads/1/3/2/7/132710661/6808280.pdfIn PDF document text
    • http://dovij.liamcknight.com/uploads/1/3/0/8/130814328/tiwetozevitaneledane.pdfIn PDF document text
    • http://files.matchmypartytheme.com/uploads/1/3/0/7/130775651/rujezela_jawabar.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/1/0435/0004/4454/files/ramraksha_stotra.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9762/9596/files/reworulatolapapilerutiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9587/5989/files/kojugasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8049/6792/files/69228323104.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8078/5821/files/one_way_anova_spss_output_interpretation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3640/files/kawomafexuvegivin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0290/4222/files/nikuxisiwilij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0896/6307/files/mimagagoxazasesupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8338/0376/files/conjugaison_du_verbe_etre_et_avoir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kozaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wulusiwebope.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_off00005d85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D85 5260 bytes
SHA-256: 8ad53ab4a51e2991bf14580e942a128aa26c345581e89544b5dbffb0a5fa3996
font_01_sfnt_off00006f71.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F71 9980 bytes
SHA-256: c4558e8b7f28eb74a01e517a5e500707a8c341b2c9007cd2cf06ca1227dc169f

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