Malicious PDF — malware analysis report

Static analysis result for SHA-256 cebe13d496bcb072…

MALICIOUS

PDF

49.1 KB Created: 2020-08-12 19:15:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f0a836f16b5482bd8009b75e2c08793e SHA-1: 5d61ad97947da6ab37738ec065c672854959ab90 SHA-256: cebe13d496bcb0721f35e4cf577984edbd8933035b365c36fb16e3e041600df2
194 Risk Score

Malware Insights

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

The PDF contains a link that redirects to a known malicious domain, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the same URL. The PDF_SEO_LINK_FARM heuristic indicates a large number of external links, suggesting a link farm or SEO poisoning attempt to drive traffic to malicious sites. The ML_NYX_PDF_MALICIOUS heuristic further confirms the malicious nature of the 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.com/pify?keyword=management+of+international+business+operations+pdf In PDF document text
    • http://files.legacygift-shop.com/uploads/1/3/0/7/130740017/d4097a1bb0f2.pdfIn PDF document text
    • http://fazasopik.canadiancashmere.ca/uploads/1/3/1/3/131383544/xabinaretagif.pdfIn PDF document text
    • http://files.stephentlintner.com/uploads/1/3/1/3/131383586/podowetulunekaja.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/1/0441/0530/2168/files/student_mark_sheet_in_excel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/66010714179.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/derukoboda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4691/8551/files/agile_certified_practitioner.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/jefoxolubikabesukukupivi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5936/3488/files/download_the_animator_s_survival_kit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6464/0159/files/fadabepa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/xusotubamapovasi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7159/4911/files/relajujilirapem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7086/4025/files/sajiw.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 2

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_off00008166.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8166 5508 bytes
SHA-256: 22772c8e4ef435b22d0a29ca28d33f37b2bf7285e5a601757467e9ea5c558472
font_01_sfnt_off00009403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9403 10240 bytes
SHA-256: 5ec3abea84b26319602fee003e9af0b37b50ff90aae2ea39d1a67fdc289dc911

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