Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0c4401d8c0103b7…

MALICIOUS

PDF

41.0 KB Created: 2020-08-25 00:23:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5181cad9f2dd1b6d6120e21b1ca5e7b6 SHA-1: b06b0a6cd437db838c7f0733a23d7637710ccc20 SHA-256: e0c4401d8c0103b7e57685c3c1426d40ef5564c8c630b983598d600d57713b0c
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a critical redirector link, indicating a phishing or malicious redirection attempt. The document body, though partially corrupted, contains text suggesting it is a lure for a 'Cisco webex board 55 admin guide'. The primary malicious IOC is the redirector URL which likely leads to further malicious content.

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=cisco+webex+board+55+admin+guide In PDF document text
    • http://files.onecfi.com/uploads/1/3/2/6/132681192/414d43009a.pdfIn PDF document text
    • http://files.southerncare.co.uk/uploads/1/3/1/3/131379792/3683773.pdfIn PDF document text
    • http://files.scdentallab.com/uploads/1/3/2/6/132682404/6530977.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/1/0462/7742/7349/files/fabipomofijafanumite.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0452/7511/9778/files/kejolil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/continuous_exponential_growth_and_decay_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/wevipepowurax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4577/2698/files/89973834909.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2750/4024/files/dikibig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7247/1718/files/12928542009.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8406/2622/files/3d_food_printing_technology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8196/5474/files/halloween_flyer_templates_free_for_word.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9961/9492/files/38176708233.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 7

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_off000060e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60E9 5556 bytes
SHA-256: e57f5bcce6c0b5cf5034eabb023520f917a7c961c2f2c31f638d029f905b637b
font_01_sfnt_off000073cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73CB 10372 bytes
SHA-256: acf562cda71388c1e70d3e3d75ffb84828fe714805cbe4f9ff5fc8f4a9090857

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