Malicious PDF — malware analysis report

Static analysis result for SHA-256 30183c21954d4706…

MALICIOUS

PDF

68.1 KB Created: 2021-03-09 00:41:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: b4b1eed46a71da41c731aeb5eff480a4 SHA-1: d3aa1d09fe9c4e7182a65ecddef54f1c674ad014 SHA-256: 30183c21954d4706dcdefde43d2e9655214948b26d20805fa434aaf7fad798d7
186 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.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://golowaki.ru/award?keyword=domingo+garcia+belaunde+las+constituciones+del+peru+pdf PDF link annotation
    • http://fafuzum.sportsontheweb.net/dazukoderepidosivuzogi.pdfIn PDF document text
    • https://nulokedebuzeb.weebly.com/uploads/1/3/4/3/134310318/gudokoleta_ragifari_tusajovujegesut.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410004/normal_5ffad201ea906.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389601/normal_5fe082faefe73.pdfIn PDF document text
    • https://wusumojasojufe.weebly.com/uploads/1/3/4/3/134352244/7660163.pdfIn PDF document text
    • https://lukuxafibufogi.weebly.com/uploads/1/3/5/4/135400428/0ecc9d0cd8c5.pdfIn PDF document text
    • http://lenusabipowezo.getenjoyment.net/how_to_play_family_feud_in_a_large_group.pdfIn PDF document text
    • http://nebofonuve.mywebcommunity.org/2543091533.pdfIn PDF document text
    • https://fusajowaxoxa.weebly.com/uploads/1/3/5/3/135344195/4336976.pdfIn PDF document text
    • https://zesaxigupube.weebly.com/uploads/1/3/4/0/134016892/jebaxebiseb.pdfIn PDF document text
    • https://jobovivubip.weebly.com/uploads/1/3/5/3/135392816/nizafas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405197/normal_5fcceef46015d.pdfIn PDF document text
    • https://xexidizufom.weebly.com/uploads/1/3/4/5/134508107/dapubirus.pdfIn PDF document text
    • https://xijafidul.weebly.com/uploads/1/3/2/3/132303061/6142163.pdfIn PDF document text
    • https://debuvubuni.weebly.com/uploads/1/3/4/8/134846467/lusowudiwa-navirogoxaxibot-vakuvutesebej-jividojefulo.pdfIn PDF document text
    • https://pazarufawituxib.weebly.com/uploads/1/3/4/0/134000032/430e7020f926.pdfIn PDF document text
    • https://jonipafatanepa.weebly.com/uploads/1/3/2/7/132741476/pafazonidesel.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/5b455c6c-88e4-4e62-b078-5dae02ebcad9/snow_white_and_the_huntsman_2012_trailer.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1e7126d7-f847-413d-a69e-5e1dceef75d0/how_to_setup_samsung_ipolis_ddns.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/62142296914.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_off0000cb56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB56 5612 bytes
SHA-256: b29898cd5a05a4e51ca06b1c474d1cb7c9652829f7394951ed9a4cb2be23188b
font_01_sfnt_off0000de56.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE56 11096 bytes
SHA-256: 5616deb705faa727c4515b22243917b1905c54a92b23136331bf011ba95b8a04

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