Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e5098f21ea5ed3…

MALICIOUS

PDF

44.2 KB Created: 2020-08-20 14:24:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e659765c09e4fa9d37af9e23034d015 SHA-1: f8012d447939b93a8f57c5a12c37872dc2f6582a SHA-256: b5e5098f21ea5ed3724ff0544cdf19a3044fbc0fd0d0c34e026dffd41bb652dc
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to external PDF files hosted on various domains. One of these links directs to a known malicious redirector URL, indicating a potential phishing or malware distribution attempt. The ML classifier also strongly flagged this PDF as malicious.

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=abhishek+bachchan+movies In PDF document text
    • http://files.makinghairsmile.com/uploads/1/3/2/3/132302749/fesagufu_perudovazezorem.pdfIn PDF document text
    • http://files.dollarmovement.com/uploads/1/3/1/6/131636954/gimolamujemedikefut.pdfIn PDF document text
    • http://files.volkerspatchcollection.com/uploads/1/3/0/8/130874385/7f7a98327276b1f.pdfIn PDF document text
    • http://gofaja.clarkhughesproject.org/uploads/1/3/0/7/130739227/sulaj.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/1/0430/0223/2983/files/psicologia_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8980/5980/files/watertight_doors_on_ships.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3146/1016/files/89202586057.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1102/9666/files/69301250559.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9058/3464/files/xovikob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9140/2660/files/53803002079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/40035930655.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8806/0320/files/13932751290.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/21244882445.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2794/6904/files/52082359212.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8506/9478/files/magicseaweed_long_beach_ny.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 8

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_off00006fe3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FE3 5164 bytes
SHA-256: 3b6c1a1a310bd5713d9cfa254154ba210c7f08b02024bf292a4ebec657ba045d
font_01_sfnt_off00008149.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8149 10240 bytes
SHA-256: 0ecf1ff63333f02937c4df27c8de8992ca3b9f038c9cdcce16c751737987634c

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