Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2d3341d763a20fd…

MALICIOUS

PDF

68.8 KB Created: 2021-02-28 02:54:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 44a6d747ae3db8dcae7f438f00897023 SHA-1: 332d4ba8c2d3fc22945abed4bc6dc332e631c5e1 SHA-256: f2d3341d763a20fd541e60b81e1dfc02d7b743c85585afc7e9f6a7e6a7137039
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://gimoguvi.ru/wix?keyword=lesson+12+homework+answer+key PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4408862/normal_603ae81379f13.pdfIn PDF document text
    • https://bativizamazon.weebly.com/uploads/1/3/4/7/134770744/105268.pdfIn PDF document text
    • https://koloputumoti.weebly.com/uploads/1/3/4/8/134887370/raxuto_viromowusuzoso_wilufamo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366995/normal_602545ee9a905.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393016/normal_6014512e7cd6b.pdfIn PDF document text
    • https://defavelusanopef.weebly.com/uploads/1/3/5/3/135345674/3843207.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421462/normal_600fb1dd3c565.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/fibesezati/anthem_bcbs_indiana_provider_forms.pdfIn PDF document text
    • https://s3.amazonaws.com/bojafazes/45097941811.pdfIn PDF document text
    • https://s3.amazonaws.com/bomifabipi/beanie_baby_value_guide_2015.pdfIn PDF document text
    • https://s3.amazonaws.com/jajoxulabojaso/islamic_geometric_pattern_vector_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/sexuvosugolalivugituledom.pdfIn PDF document text
    • https://s3.amazonaws.com/jujojomojemiz/1469339690.pdfIn PDF document text
    • https://s3.amazonaws.com/tokafanawa/socio_demographic_factors.pdfIn PDF document text
    • https://s3.amazonaws.com/mokixetat/prepositional_phrase_practice_worksheet_4th_grade.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/como_ser_calculista.pdfIn PDF document text
    • https://s3.amazonaws.com/kigavanus/fapikitesofefan.pdfIn PDF document text
    • https://s3.amazonaws.com/gazivemon/ccc_mock_test_with_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/bexolamabad/careless_whisper_sax_alto_sheet.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_off0000d131.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD131 5276 bytes
SHA-256: a8fa28917f2879bed8e3f8328d13c393827afff59253df852a2651c729499edf
font_01_sfnt_off0000e316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE316 10108 bytes
SHA-256: 743ad8c904c5c5381b06021ebdd6769f7635def7151dff0b5591624b46e83e76

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