Malicious PDF — malware analysis report

Static analysis result for SHA-256 73248f051adc16c3…

MALICIOUS

PDF

33.5 KB Created: 2020-07-31 20:38:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6962cf06d87de45992280e6d09d75516 SHA-1: 9031d1fd3cedc917293a48f961a89b5374242183 SHA-256: 73248f051adc16c3cf7e8a3c85a4f1a0762f3cfb421f6073134c3cd23398e8c4
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous embedded links, many of which point to a redirector service that is known to host malicious content. The document body explicitly mentions "free bitcoin script hack" and includes a URL that aligns with this lure. The ML classifier strongly indicates maliciousness, and the presence of a link farm suggests an attempt to distribute malicious content or phish users.

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=free+bitcoin+script+hack In PDF document text
    • http://files.mixplayeat.com/uploads/1/3/1/1/131163540/nixikalejixubop.pdfIn PDF document text
    • http://files.edgeofthewilderness.org/uploads/1/3/0/7/130775304/ruwefe-jinir-rofisoligejeb.pdfIn PDF document text
    • http://files.citybeerwebstore.com/uploads/1/3/0/7/130776249/siwozixogek.pdfIn PDF document text
    • http://files.fullwavemusic.com/uploads/1/3/1/4/131483249/lewufuf_gulidarasosufa.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/1/0429/8535/7463/files/33678748030.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4211/1637/files/sovovesawanutavoliwemo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0066/8065/files/voxijezovavatukimifosa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9480/2581/files/pomevik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5208/1053/files/zakuvapuxiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9826/0124/files/gulimidefolobale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7602/5501/files/58909873682.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9515/3058/files/65247702369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7833/6165/files/fumipagexe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5687/3128/files/sijilapazugaferije.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rabilividobakomitunaxizug.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 5

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_off00004764.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4764 5148 bytes
SHA-256: 0714c135007738e317e9db49e9aa15b3f39f90980dd00b2cf227045236ad864e
font_01_sfnt_off000058df.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58DF 9572 bytes
SHA-256: d49e8a45e8962975e95f6e53580f8cdc43a6f9f4cf509600a26234c2bf983cc9

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