Malicious PDF — malware analysis report

Static analysis result for SHA-256 b134e7222f72bcf7…

MALICIOUS

PDF

41.8 KB Created: 2020-08-10 21:09:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c3a00c20a7a234726e0ba6aa97be2aeb SHA-1: 75f90c5be0a43405d652034eba8d2964938eb55d SHA-256: b134e7222f72bcf7548201cacfc7b4f8bc0f6da2e98975af7142b2e12b090d02
194 Risk Score

Malware Insights

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

The PDF contains a malicious redirector link disguised as a document about 'electronic access control'. The heuristic PDF_MALICIOUS_REDIRECTOR_LINK indicates the primary URL leads to known malicious infrastructure. The PDF_SEO_LINK_FARM heuristic suggests a large number of outbound links, many pointing to Shopify, likely to manipulate search engine results and obscure the malicious destination. The ML_NYX_PDF_MALICIOUS classifier strongly supports the malicious nature of this PDF.

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=electronic+access+control+2nd+edition+pdf In PDF document text
    • http://files.wcchakrahealing.com/uploads/1/3/1/3/131381374/8786177.pdfIn PDF document text
    • http://lebaregik.isocandles.com/uploads/1/3/1/8/131871674/mugivijararogewe.pdfIn PDF document text
    • http://files.capitalmetal.com/uploads/1/3/0/8/130813888/fuviw_siwixip_fuwukodopor_diturubutexume.pdfIn PDF document text
    • http://files.ljubaavvakumova.com/uploads/1/3/0/7/130776875/movozabamefadi.pdfIn PDF document text
    • http://badirada.jackandbuenafoundation.org/uploads/1/3/1/3/131398560/3c03173.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/1/0431/5077/0333/files/55820580827.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/dakivizimezemetu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9252/4702/files/types_of_budget_in_management_accounting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3858/8584/files/28962408172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2023/7475/files/75940679334.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8709/4177/files/bukuve.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2710/1853/files/bapofevi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/fuvox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6706/4998/files/44693457433.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/42778697636.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2548/9320/files/1426363355.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0448/0273/6279/files/difference_between_early_vedic_period_and_later_vedic_period.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_off000064be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64BE 5236 bytes
SHA-256: 7bd7118b48467e5e18cce6dd0c5e2ee7119acbbc8dd0c32d029d4f9fcdb432ba
font_01_sfnt_off00007698.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7698 10188 bytes
SHA-256: 7bb12387da56959b94b877b0b55fd36c8823f3324a78f06107fdac4216672dda

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