Malicious PDF — malware analysis report

Static analysis result for SHA-256 c12e2cc4f8197d89…

MALICIOUS

PDF

40.8 KB Created: 2020-08-15 07:43:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a0e3bf6bb5a09c2309558f9ae88eb60c SHA-1: c9664954b5304e8553cba30759816d61a9799d12 SHA-256: c12e2cc4f8197d89720661a2265cc5969d52c60b89e5a546b7be5b755a9b63e2
194 Risk Score

Malware Insights

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

The PDF contains a prominent link that redirects to a malicious URL, likely as part of a phishing or scam campaign. The document body, though heavily obfuscated, contains the text 'Acceso remoto android desde pc' and the malicious URL, suggesting a lure for remote access. The presence of numerous external PDF links further indicates a link farm or redirection strategy.

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.com/pify?keyword=acceso+remoto+android+desde+pc In PDF document text
    • http://files.paxchristisa.org/uploads/1/3/1/3/131379730/towurobizefewa.pdfIn PDF document text
    • http://zidopexof.foreverjoyphotography.com/uploads/1/3/1/3/131379552/1beda.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/1/0439/2599/5688/files/98242876348.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/2260/4695/files/44694797019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7427/2924/files/vojafifi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9429/5203/files/bisalotogamulazo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0658/1147/files/casio_protrek_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/1128/2843/files/tafiwulapuvo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2352/4259/files/autodesk_alias_car_modeling_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/kuwafilepajijoriw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1403/7409/files/32158347495.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3128/2335/files/xobafoliwimuzaxebujitosob.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 4

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_off00005f68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F68 5176 bytes
SHA-256: cada5c681fa81f5299ef8fc8ed950f89fcd1b07c21be3a0f620afedf33929dbd
font_01_sfnt_off000070d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D4 11064 bytes
SHA-256: 2e7862f38062c81797ce3b477470245156d38edb6173aa06f2c3acbe8908a938

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