Malicious PDF — malware analysis report

Static analysis result for SHA-256 7414e466e4361bc4…

MALICIOUS

PDF

41.5 KB Created: 2020-10-13 11:37:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 11e5bfc37cae17b889057189ef2ecd8d SHA-1: e7dcfae0ca9a37d546f0a193cf2f2f87baa74931 SHA-256: 7414e466e4361bc4ed41efd2becbc99012a38216895b1b4c8e02c738a2249b86
254 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rugatu-rugot.pdf.
  • 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/strik?keyword=mcqs+on+antidepressant+drugs+pdf In PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/rugatu-rugot.pdfIn PDF document text
    • https://dutitujazekap.weebly.com/uploads/1/3/0/8/130814390/1158663.pdfIn PDF document text
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/nukunuraki.pdfIn PDF document text
    • https://dimaxafazeza.weebly.com/uploads/1/3/1/4/131453031/caa64.pdfIn PDF document text
    • https://vuxozajuje.weebly.com/uploads/1/3/1/3/131379873/vudodapazepipux_kijemomebegax_velagokotukif.pdfIn PDF document text
    • https://gimejexoxixaza.weebly.com/uploads/1/3/1/8/131872185/kadupe_ripovu_jozovagazemewe.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/8709547.pdfIn PDF document text
    • https://bedizegoresupa.weebly.com/uploads/1/3/1/3/131379398/1109957.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/6aae937a-f86d-4463-b2b3-11a73566a397/74383929480.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9f8ae6f5-4d92-4f2b-b63d-d09e7977a2e6/89546644429.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb37a60d-2356-4f31-9a8f-f36e876ebf64/xabofufu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c037436-e52f-40b5-b81a-ab8e2b0e2359/65193860401.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fa4a6467-42be-4ab7-9f0a-7e44964b50f1/46624725514.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/26f7b6da-d10f-40f0-a711-df68fdce5d5d/retopiwobavawojof.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/49c5046c-3abd-4111-87af-5f10fa2d2b72/rejimobam.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6ad2eb11-c577-4fc0-8739-a490311c16b4/mulipikofedifimuradel.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_off000064c2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C2 5420 bytes
SHA-256: d3f0ec333079fe442ac3952813503de0d403d0c20ad1a7e620e69715cb8453c3
font_01_sfnt_off00007741.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7741 9844 bytes
SHA-256: 7eacc497cfaa76f49214729166fd2842ac3d7eb41b50e2c4cbf949b114b0b6a7

Open this report in the interactive analyzer, or submit your own file for analysis.