Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea7f75c374d70cf7…

MALICIOUS

PDF

59.3 KB Created: 2020-08-21 16:42:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a52184f27dd8c6de5da677ce6552c369 SHA-1: 138be9ea5ccddcfd94a088195b54da6e01651d71 SHA-256: ea7f75c374d70cf71c2ced19a38aa58e021840d663ab7855dfb422cbf017856f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a mass external link farm, with a primary malicious redirector URL identified. The document body, though heavily obfuscated, contains text referencing 'Cox digital cable tv guide' and the malicious URL, suggesting a lure. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the link leads to known malicious infrastructure. The ML_NYX_PDF_MALICIOUS score further supports the malicious classification.

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.cc/pify?keyword=cox+digital+cable+tv+guide In PDF document text
    • http://files.dragofficial.com/uploads/1/3/0/8/130874566/binededepiru.pdfIn PDF document text
    • http://files.dobetterwhatyoudobest.com/uploads/1/3/0/9/130969999/405647.pdfIn PDF document text
    • http://files.helenernstlongarmquilting.com/uploads/1/3/1/1/131164520/f2fa4c1de3.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/1/0433/7732/8278/files/66861203959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kesazemoluvumexon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2925/0719/files/68485035976.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9021/5073/files/hsk_3_standard_course_workbook_reading_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8934/7228/files/xbox_one_running_slow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7063/5680/files/95129576157.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3609/0267/files/39703846116.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/3525/8020/files/movie_taken_3_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5187/4466/files/livarafe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5507/7790/files/filemaker_pro_free_for_windows_10.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 6

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_off0000ab87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB87 5004 bytes
SHA-256: 94ca77d73cf381c8a7943821fc9246a13bcb2fef311e9ce99e3b159e468141f1
font_01_sfnt_off0000bcaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBCAF 10420 bytes
SHA-256: 4d577b25d0574af23e40c945b05e2fca203c188a08647e524e90dc7f4f157049

Open this report in the interactive analyzer, or submit your own file for analysis.