Malicious PDF — malware analysis report

Static analysis result for SHA-256 f507064ac6d1cfda…

MALICIOUS

PDF

41.0 KB Created: 2020-08-14 00:06:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 712255706710bff6b0d0987841feca75 SHA-1: c50da189314d8273af489f84bfec06001711ba31 SHA-256: f507064ac6d1cfdab88b5a2f307e82bab832d813cc80fd16fe699ad092f191d1
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on cdn.shopify.com, and one critical link to a known malicious redirector at ttraff.ru. The document body, though partially corrupted, contains the text 'Simile metaphor worksheets grade 2' and the malicious URL, suggesting a lure to disguise the malicious intent. The primary goal appears to be redirecting users to malicious infrastructure.

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=simile+metaphor+worksheets+grade+2 In PDF document text
    • http://suruwaf.sarabycura.com/uploads/1/3/1/6/131606289/9790d2995117.pdfIn PDF document text
    • http://tonubu.thegoodeacademy.com/uploads/1/3/1/6/131607163/76ab5508a3be953.pdfIn PDF document text
    • http://files.qthpublishing.com/uploads/1/3/1/6/131607321/saraxa-kulatuwo-womezu-nigixemolurixo.pdfIn PDF document text
    • http://files.decktuneuprapidcity.com/uploads/1/3/1/4/131483138/zugirifosez.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/1/0433/4541/2261/files/20241082782.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6488/5397/files/1990182664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6238/6074/files/16838932592.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2739/0887/files/1116227662.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4446/8901/files/caracteristicas_de_bacterias_gram_positivas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/1872/9110/files/radioactive_aerosols.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2808/5912/files/kisojepawaxuguzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dedijadexurusefux.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9899/5864/files/94310583864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0454/7867/4584/files/richard_bandler_the_ultimate_introduction_to_nlp.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4550/9537/files/arbitration_act_2020_tanzania.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8856/6677/files/what_is_os_x_base_system.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 6

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_off00006190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6190 5764 bytes
SHA-256: e0b677689b18dd6333ce72069fbaba07d0bb753a7872d387f2ae05638965adf8
font_01_sfnt_off00007510.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7510 9884 bytes
SHA-256: 64b82b06b6d4048d73bde0179f2c8712c9b750fe944e28693a8288ff7068eff1

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