Malicious PDF — malware analysis report

Static analysis result for SHA-256 8dd3115ed6ff8fb3…

MALICIOUS

PDF

69.4 KB Created: 2021-02-18 23:33:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 280303cd2dbcafe45799b44b77a04e7c SHA-1: 88751e11f5ded40cb94c0d425ebd9777aad4a7a8 SHA-256: 8dd3115ed6ff8fb3e8f99d91b7389d26b45012983da7380ded8c6b798318c67a
196 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://maypoin.ru/wix?keyword=nagini+tamil+serial+episode+1 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386824/normal_60142272f0d33.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495055/normal_5fcd8b66d3b84.pdfIn PDF document text
    • https://cdn.sqhk.co/delojiwuguj/nhbibFk/city_mania_town_building_game_offline.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480393/normal_5fd6485605ff2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4384307/normal_5fdc0c6664920.pdfIn PDF document text
    • https://rizigavitud.weebly.com/uploads/1/3/4/5/134581125/9982e76c07382e8.pdfIn PDF document text
    • https://cdn.sqhk.co/diratukuz/oJgcifB/15059439503.pdfIn PDF document text
    • https://wifamiwipefap.weebly.com/uploads/1/3/0/7/130738562/lebepoxidip-tizilorezosa-ludixijaw.pdfIn PDF document text
    • https://cdn.sqhk.co/namulofilox/diiKji5/19071916704.pdfIn PDF document text
    • https://tobejisexin.weebly.com/uploads/1/3/1/4/131454505/ea169397835b8b.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/toliwudalamem/contact_info_form_template_word.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/sobagaj.pdfIn PDF document text
    • https://s3.amazonaws.com/vifusupegiza/16458809912.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/judifavuvurenoj.pdfIn PDF document text
    • https://s3.amazonaws.com/tipikaxe/91021800804.pdfIn PDF document text
    • https://s3.amazonaws.com/sewamos/4851713061.pdfIn PDF document text
    • https://s3.amazonaws.com/viwoxuz/zekenejaronuwovifup.pdfIn PDF document text
    • https://s3.amazonaws.com/gavobawum/tozasezevagaru.pdfIn PDF document text
    • https://s3.amazonaws.com/vebisop/baroid_product_data_sheets.pdfIn PDF document text
    • https://s3.amazonaws.com/babetafaperaxov/vidigetobuvelugisovej.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_off0000d63b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD63B 5300 bytes
SHA-256: 707a7b33007515ef9845b8d7a0506ada59425dbf8458d69941a205597af1c761
font_01_sfnt_off0000e82e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE82E 9412 bytes
SHA-256: 009cad641e0a53285df64fe88124314761a7c0c96891e45691d70f7e8d4d94b6

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