Malicious PDF — malware analysis report

Static analysis result for SHA-256 c42c2a688a2c37c4…

MALICIOUS

PDF

62.8 KB Created: 2020-08-25 14:26:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6e167d38db97c90312c5f6d036916d33 SHA-1: f8c430bf53d9ea49d0adb36a783ac013daf84e31 SHA-256: c42c2a688a2c37c410e246e51d66fc389b2570dcd52eabd8819046191b9f1b6b
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, which is designed to lead users to further malicious content. The document body, though heavily obfuscated, contains the same URL, suggesting it's the primary lure. The PDF also contains a large number of links to other PDFs hosted on Shopify, likely for SEO manipulation to increase visibility.

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=telecharger+adblock+plus+chrome+android In PDF document text
    • http://jadibi.nulineeducon.com/uploads/1/3/0/7/130775803/vusujaxosow.pdfIn PDF document text
    • http://files.designsbygiacomo.com/uploads/1/3/1/8/131871745/nijokupe-tovozurubo.pdfIn PDF document text
    • http://files.centerforpilates.com/uploads/1/3/0/7/130738859/bubuv-pamirokopage-vewokijibizug-debimupapoleba.pdfIn PDF document text
    • http://files.archaeospain.com/uploads/1/3/0/7/130775025/pozebavaboran.pdfIn PDF document text
    • http://files.grottonsinchile.org/uploads/1/3/2/7/132740413/sojudade-sugonas-gasatis-gesazuvujiw.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/1/0434/6127/9894/files/allen_aiims_test_series.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/introduction_to_heat_transfer_bergman.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/0669/5320/files/capital_humano_recibos_de_nomina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2483/4982/files/90615572153.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6756/2392/files/kikozuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6100/8791/files/jubasipogaxusire.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5583/9392/files/24164167136.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0465/5330/1142/files/31949033923.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9504/files/4755592595.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3758/files/angry_whatsapp_status_video.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0591/0933/files/69823726097.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1348/0354/files/gebiderimalotevat.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009aea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AEA 5640 bytes
SHA-256: 6c8080510c131c71ccf63d8c047927c8d495841dd5b602cd5b032c18a290727e
font_01_sfnt_off0000ade8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xADE8 10900 bytes
SHA-256: 25479e8b9bed0914d335ee611b6bddf8b2cfde20ea3a782f8c371b9fee2f1493
font_02_sfnt_off0000d32a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD32A 17444 bytes
SHA-256: 2e2406a23c4eda4333e1700c11bf9bf530ea6b24fb47f233129a6652b68d8e8d