Malicious PDF — malware analysis report

Static analysis result for SHA-256 23c053bf1b2de5d8…

MALICIOUS

PDF

106.7 KB Created: 2020-07-23 19:05:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3de883d47948c11e9b7ec2b00abc40ed SHA-1: 08d04579136aa677eec8c01bbedb066a76cd3a01 SHA-256: 23c053bf1b2de5d815acd694bcbd0ff32ef6480b1dd7f4a363734a186aee5b43
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with the primary heuristic identifying a malicious redirector. The document body, though heavily obfuscated, appears to contain keywords related to design software, likely as a lure. The embedded URLs point to a redirector and a Shopify-hosted PDF, suggesting a phishing or redirection 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=3d+house+design+software+free++sketchup In PDF document text
    • http://files.redroosterbakehouse.com/uploads/1/3/0/7/130776027/9346475.pdfIn PDF document text
    • http://files.aogshoetique.com/uploads/1/3/1/0/131070820/xubuxovupa-dawova-wezudada.pdfIn PDF document text
    • http://files.deathnotenews.com/uploads/1/3/1/8/131856624/5240613.pdfIn PDF document text
    • http://files.425sqn.org/uploads/1/3/0/8/130814642/zotazaboma.pdfIn PDF document text
    • http://files.sameelz.com/uploads/1/3/0/7/130776644/fosipekitojenegobew.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/1/0428/9101/8396/files/ridirafikapeveli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1143/1838/files/43848942741.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/15258925302.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1681/2706/files/wupujuradipokadotulute.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5817/5908/files/77667709715.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0595/2671/files/91474031353.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/69113292362.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/jabowubizebadaruzejojewob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7315/8821/files/busek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9083/6632/files/bexazobigidadusupoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/99913566500.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00013a6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13A6E 5492 bytes
SHA-256: 05234a5661c23068481553e0282c4544008d89c676992eae60c464fc1f3334f2
font_01_sfnt_off00014d20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14D20 20504 bytes
SHA-256: eb49cb1936597dfcfcb5de5eb7de1e8993f190bdbe0d4ba13e9a18475dc765d4
font_02_sfnt_off00018761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x18761 16204 bytes
SHA-256: e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15

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