Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d36e97e5c829ea1…

MALICIOUS

PDF

49.8 KB Created: 2020-10-20 23:03:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-14
MD5: 5e8c2c7b1d3397cb7ae03254082255ff SHA-1: 46268496ab7befaa1b6598486b7809d554ed944e SHA-256: 0d36e97e5c829ea1713559deb4116dbe2459306f5367075a5dbcd152762c5821
194 Risk Score

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://cctraff.ru/123?keyword=rta+theory+test+questions+and+answers+pdf In PDF document text
    • https://wojeribexojuxu.weebly.com/uploads/1/3/1/8/131856158/4774448.pdfIn PDF document text
    • https://popilezofale.weebly.com/uploads/1/3/1/1/131164236/rumezojajag.pdfIn PDF document text
    • https://pigogokeda.weebly.com/uploads/1/3/1/8/131857695/358353.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f87103e24940.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380869/normal_5f8bb4cce6f41.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365600/normal_5f86f977b240f.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0482/8761/3096/files/trigonometric_identities_integral_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/the_men_who_built_america_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7750/1079/files/chapter_6_test_form_b_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3531/0745/files/certificado_de_antecedentes_disciplinarios.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0268/6851/5012/files/gta_5_mobile_apk_free_download_uptodown.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5008/1690/files/31026948319.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78080a22-6a3f-4b0e-880f-871b15cc74df/xogasonerenukuta.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7050747f-3f3a-4b62-b9d5-d5a51be6afb6/nowive.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/66f3d706-584a-48c4-b56a-4364f33f5acc/68286422624.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6cf31955-92e4-42f8-9398-6c9bcb4b372c/chanson_de_noel_moderne.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/963c0fc4-20d3-4aa2-ac86-50411a45fa67/73101548638.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/25c5975a-7d45-4d06-95de-906296f21652/83289848130.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3fdea154-e924-4437-8775-f80876d745f9/24086030484.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6840a731-adaf-4443-acc4-cb39d85e6c1d/bovewetij.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1008f0e5-34ed-4637-9b95-d794807c2e40/9297125554.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e9d8f1-3953-4cb0-9375-5c240753a8b3/49234004280.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007581.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7581 5304 bytes
SHA-256: 8546155519042cfdce3d52b6a7d007b9f4cc13a78bedd4c56b06a9d72dd643f9
font_01_sfnt_off0000879c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x879C 10480 bytes
SHA-256: 78890435be499478607498690f0dd1f345e2e3df76ad503c0695765edeb1ec22
font_02_sfnt_off0000ab68.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAB68 4324 bytes
SHA-256: 9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2