Malicious PDF — malware analysis report

Static analysis result for SHA-256 22e9a95d7461b69c…

MALICIOUS

PDF

48.9 KB Created: 2020-10-28 02:55:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-02-23
MD5: 3a86104e1f2317cf7ac5300b417976d4 SHA-1: 629d35b9d742e55c8801ae180dea9a017df45a98 SHA-256: 22e9a95d7461b69cb783b730606119ecf898c371c75351ce13ac2c33f7cdea5b
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://ttraff.me/123?keyword=mindhunter+novel+pdf In PDF document text
    • https://sopizelofixafav.weebly.com/uploads/1/3/4/4/134438569/puminiluzadelof-filikepusu-gepemupizobo.pdfIn PDF document text
    • https://sanuvexugivi.weebly.com/uploads/1/3/1/6/131606490/buremedulazuxetud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.opentle.orgIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/4622/7096/files/duwek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9440/0423/files/5308301701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0477/5434/6652/files/pcr_forensics_simulation_lab_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/zirojopemup/bizikedekalavaralopi.pdfIn PDF document text
    • https://s3.amazonaws.com/taturi/european_arrest_warrant_template.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagoba/ndlea_guarantor_form.pdfIn PDF document text
    • https://s3.amazonaws.com/zetare/kepubogodizipefajigu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/78017249-4c1e-48a3-8664-42db445ab495/tv_furniture_design_catalogue.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5f4053af-953c-4c24-b1b6-b715229c9e88/78693233463.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3cd770a2-13ba-45f7-9229-faf5707a4ced/gta_vice_city_audio_files.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c746c87c-1654-4faa-abd7-4c60f0cb842d/xolorutani.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dcdea63e-94e6-410f-b276-045116c3ffa4/55921163299.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/95e01c38-292a-4c95-9dec-03207664fb4b/27553688234.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4cee6803-a137-4bbb-9729-acf2739d3044/70503012134.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7525/5972/files/dugaxepufe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6773/6225/files/tokyo_map_app_android.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0496/6534/3637/files/telop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7784/2597/files/project_proposal_for_barangay.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4977/0395/files/befufejikew.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
    • http://www.gnu.org/licenses/gpl.htmlIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7185 4804 bytes
SHA-256: 6b062d3b7b01b6dde40107e02da5626a3e9730d4e64e3cdf801a6b158f167416
font_01_sfnt_off000081d2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x81D2 6620 bytes
SHA-256: b7c22c7c1b3398dcadce328404d24fd37016cf55ed7b85d42c15a0e08976690a
font_02_sfnt_off0000935f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x935F 10072 bytes
SHA-256: 73820af91de1aec85f42ce4ee78da3b69ae7dbb0281c0270c35ad79fdfab0c0e