Malicious PDF — malware analysis report

Static analysis result for SHA-256 648e50c0879ade73…

MALICIOUS

PDF

44.7 KB Created: 2020-08-04 07:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ffeb26522ee433220ed16ecaf1e1a24 SHA-1: db19ee7fe815fd2b9ae244107884c78a71341a1a SHA-256: 648e50c0879ade73c7fba4210746b13438b576e07901ed822b7003e62d4ec6a3
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to "history of money book pdf" to entice users. It contains numerous links, including one to a known malicious redirector at `ttraff.com`, which likely serves as a gateway to malicious content. The ML classifier strongly indicated maliciousness, and the presence of a link farm suggests a phishing or malware distribution attempt.

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/wb?keyword=history%20of%20money%20book%20pdf In PDF document text
    • http://files.claytonbrowneortho.com/uploads/1/3/2/3/132302960/1f0ad16.pdfIn PDF document text
    • http://files.physicswiley.com/uploads/1/3/1/4/131407737/5152480.pdfIn PDF document text
    • http://files.ildiamon.com/uploads/1/3/1/6/131606111/a90c50c.pdfIn PDF document text
    • http://files.wiseowlwellnessclub.com/uploads/1/3/1/3/131380850/mixobufarudemar.pdfIn PDF document text
    • http://guxur.diamondskillsacademy.com/uploads/1/3/0/7/130738615/mogejaxomosemosolo.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/1/0437/5802/6903/files/81163625691.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4903/3627/files/remove_bleed_and_crop_marks_from.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3803/1518/files/gobulovuvimuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3966/1981/files/xosivugimesefuvesud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1720/6946/files/63801555337.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9508/9559/files/12030087209.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8937/1029/files/sewatureb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/70354855800.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5479/1846/files/55656076770.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1339/7913/files/49281755109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9299/2410/files/take_five_piano_accompaniment.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/53755850372.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_off00007041.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7041 5212 bytes
SHA-256: 7cd622b4fa6d1ffce1183786d54fcd1f469a08035d318c47efbb1d28817eb294
font_01_sfnt_off000081e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81E9 10524 bytes
SHA-256: 436f4fce0f6d34c06072b6ae355c19ea992492ab400fccb7b416d5955a8e17bb

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