Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b7c2a30a26b9cc5…

MALICIOUS

PDF

35.2 KB Created: 2020-08-11 12:53:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b06af4bc77bf9a3f2ef2ddfabcf72acf SHA-1: c416b69fbc59f09fce94f806f087aa8489d2b647 SHA-256: 4b7c2a30a26b9cc5174ba452ce4700598d9a3bb165c0f913889a7bb2fe5d60fd
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic identifying a malicious redirector. The document body, though partially corrupted, contains text related to a 'Beckett football card price guide pdf' and includes the malicious URL, suggesting a lure. The presence of a link farm heuristic further indicates malicious intent to drive traffic to external sites. The ML classifier strongly supports the malicious verdict.

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.ru/pify?keyword=beckett+football+card+price+guide+pdf In PDF document text
    • http://files.rachelkoren.com/uploads/1/3/1/3/131383318/cababd6d630.pdfIn PDF document text
    • http://files.madaboutlabs.com/uploads/1/3/2/7/132710563/7844858.pdfIn PDF document text
    • http://files.grayinghockey.com/uploads/1/3/1/6/131637016/jusifitowafufi_dizonodizajujuw_fisujil_veduzonajumumax.pdfIn PDF document text
    • http://sarexewe.healthyfoundations.co/uploads/1/3/0/7/130775934/fatiwusunosefadarit.pdfIn PDF document text
    • http://files.balletwithmissrachel.com/uploads/1/3/0/9/130969573/856c84bf1ac3622.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/1/0433/0877/7637/files/fuzolevoge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0513/1421/files/charlotte_danielson_rubric.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1358/6596/files/nezilulebevufukow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4576/3744/files/fifirosezuwifel.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6416/3490/files/56025133283.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5750/4668/files/bible_ya_sepedi_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3077/2902/files/vegukapin.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9111/6700/files/62242068039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5194/0000/files/xokatesu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5319/4133/files/i_751_affidavit_sample.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2836/3939/files/fupupijuz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44411244229.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4365/1735/files/28595013392.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_off00004b5e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B5E 5400 bytes
SHA-256: a04fa83df1c4aab64cfba84a93d157987aae984eb193a7bc4be2e491131d432b
font_01_sfnt_off00005dc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC3 9928 bytes
SHA-256: 1fd3c760cadc8bc2f6a1087c0a7778a4c99f1bf73ca8071807249eab716f26ac

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