Malicious PDF — malware analysis report

Static analysis result for SHA-256 0a0a119dc6380839…

MALICIOUS

PDF

43.6 KB Created: 2020-10-22 23:59:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 9cbd503fbfa9a948a7b186ea469c70e7 SHA-1: 5ffb005921d20bb79948ade8240c067b19f2ec53 SHA-256: 0a0a119dc63808392b1e92602f2760198a99a8886adf96dd401602cd6f8b1cce
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/123?keyword=coordinates+google+maps+android In PDF document text
    • https://pavowojavujide.weebly.com/uploads/1/3/1/3/131398322/344000.pdfIn PDF document text
    • https://sopulekazixov.weebly.com/uploads/1/3/0/7/130776801/ec4f91dc4a.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/3409757.pdfIn PDF document text
    • https://tavumake.weebly.com/uploads/1/3/2/7/132740551/dezidokezapovujiluwa.pdfIn PDF document text
    • https://vilukenuxe.weebly.com/uploads/1/3/2/8/132814007/xumirap.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/piwupevivotixi/leruk.pdfIn PDF document text
    • https://s3.amazonaws.com/jimugivos/tomcat_application_server_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/mijedusovineti/libro_el_cerebrito.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/guvezazup.pdfIn PDF document text
    • https://s3.amazonaws.com/wibadinavosunom/81748785468.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/35977ada-8ca0-4293-8ae3-f2ed5562b3f9/75679737743.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/de976910-bb58-4e1a-bd55-31c0615a833d/avrupa_yakasi_86_bolumizletv.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e3ccd092-e831-467a-a4d0-47b16c9f359c/71463863348.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4c866799-64e0-4715-8aad-dd22371bde3f/lidajusosiligarejeno.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3458251d-af6e-45a0-8192-c9fe88efe87d/conan_exiles_khlkiste.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2650f420-4667-44f3-891b-422d3ada19af/73242193117.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3800af56-b966-4f8c-a4b8-19b7f7faa573/98331216206.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/938b19e5-b2f4-40e1-b7fe-8fce0d3b7c1b/epson_powerlite_6110i_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/tadovu/analytic_geometry_book_grade_12.pdfIn PDF document text
    • https://s3.amazonaws.com/suximawo/sindrome_de_burnout_oms.pdfIn PDF document text
    • https://s3.amazonaws.com/gosete/biology_class_10_life_processes_notes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0233967-481f-4a0c-a867-35bfcca1d00d/58876619963.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1d82f924-86af-401a-b1ae-30807a6b15c3/72112629857.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a7e90694-83a2-4a24-94e8-a7be8829bb3f/fowidemigipux.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b13f5838-ac5c-44f5-a9a1-b35ace9795c1/muweberuxu.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_off00006bf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BF4 5184 bytes
SHA-256: 0b7ca2408fb9b0be14563108951a960b2d809bdcdfebbbd8851129065b3d8cd1
font_01_sfnt_off00007d7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7D7B 10420 bytes
SHA-256: 3ad31ca807c1748964bd4556debcab93993aead42b5000fa7335717fc58899dd