Malicious PDF — malware analysis report

Static analysis result for SHA-256 34f13f06dd6d5a39…

MALICIOUS

PDF

56.4 KB Created: 2020-10-18 03:37:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2733edb6bd00aadbbdadde019acb24aa SHA-1: 0d14f1bd07ea89af21cc29028a857e46c78fbc55 SHA-256: 34f13f06dd6d5a39e2c46bfb886a3faf51eac5c22862ecbf5bb83ee8107e8a22
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://ggtraff.ru/strik?keyword=watch+premature+2014+full+movie+online+free In PDF document text
    • https://xijonezamo.weebly.com/uploads/1/3/1/4/131407630/jaladetuputuxutafo.pdfIn PDF document text
    • https://tenagudewujuga.weebly.com/uploads/1/3/1/1/131164273/8415364.pdfIn PDF document text
    • https://wuwuleli.weebly.com/uploads/1/3/1/3/131398564/davugefitafek-gotinewubez.pdfIn PDF document text
    • https://tumixivig.weebly.com/uploads/1/3/1/6/131636813/rawefo.pdfIn PDF document text
    • https://baletepo.weebly.com/uploads/1/3/0/7/130776023/723d33452313ee0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365540/normal_5f875fc04c28a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368266/normal_5f8b629ad54ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368221/normal_5f87e31838a9c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366357/normal_5f88531fb4795.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368265/normal_5f8a1935471a1.pdfIn PDF document text
    • https://buveziketi.weebly.com/uploads/1/3/1/3/131398526/sofipu.pdfIn PDF document text
    • https://kukotefuses.weebly.com/uploads/1/3/1/6/131637352/a71bc7d8a.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/1/0435/4179/0871/files/jefozitiju.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/8494/6850/files/kasoparedezomini.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1938/5502/files/11458522823.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/3890/7809/files/putusu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0481/6093/1991/files/68012142785.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0497/5624/2074/files/good_times_bad_times_bass_tab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0493/1180/9695/files/amazon_future_engineer_scholarship_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1373/3534/files/trader_joes_mini_pizza_bambino_cooking_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8993/7055/files/ds_services_standard.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00009e1a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9E1A 5564 bytes
SHA-256: e81e35ec661daec7f8b5911f0e65015cf095de2ac395e5735110e226bb29e2b6
font_01_sfnt_off0000b101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB101 10400 bytes
SHA-256: 22e503214277581f49bec6decf3bb5c7f364e7232c51e9dad4552ba0ff00c2c6

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