Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5949253150e9b2c…

MALICIOUS

PDF

41.4 KB Created: 2020-10-04 10:13:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: f2ffbfc5fe19ca996eb5a3f4e02e1e4f SHA-1: 7cac64c6f6cdc2371c7b0871aadf39b8561e1299 SHA-256: e5949253150e9b2cbcfd36a1025b4329e779c1c43da5dc3d5066779b8ccb13be
184 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.
  • 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.
  • 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://gettraff.ru/pify?keyword=infocus+projector+manual In PDF document text
    • http://files.duhamelsomerville.org/uploads/1/3/1/6/131637339/wezozumak.pdfIn PDF document text
    • http://files.science1helpsite.com/uploads/1/3/0/7/130738852/napojibobojalibebez.pdfIn PDF document text
    • http://sukeno.cheerforcharity.net/uploads/1/3/2/6/132681464/pivugowofipeje-korepekisu.pdfIn PDF document text
    • http://files.forzaedu.com/uploads/1/3/1/3/131380158/9802759.pdfIn PDF document text
    • https://site-1037203.mozfiles.com/files/1037203/toxinabin.pdfIn PDF document text
    • https://site-1039925.mozfiles.com/files/1039925/finone.pdfIn PDF document text
    • https://site-1037035.mozfiles.com/files/1037035/sumogudoxux.pdfIn PDF document text
    • http://files.adamvoss.com/uploads/1/3/1/6/131607237/6146940.pdfIn PDF document text
    • http://pedegawag.ironwoodband.org/uploads/1/3/1/3/131383609/piwekesik-sikoxidekazakif.pdfIn PDF document text
    • http://files.missionographer.com/uploads/1/3/0/8/130874615/4a8914.pdfIn PDF document text
    • http://figimuxep.sunsetskinboutique.com/uploads/1/3/1/4/131454215/nazile.pdfIn PDF document text
    • http://maxeka.bcartglass.com/uploads/1/3/0/9/130969690/9f757be8a8.pdfIn PDF document text
    • http://lurogivi.spiritforyourlife.com/uploads/1/3/1/1/131164250/8949348.pdfIn PDF document text
    • http://rutixonaw.elizabethkelleylaw.com/uploads/1/3/0/7/130776088/tolotuwop_sabowideg_lafoxidux.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000627c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x627C 5172 bytes
SHA-256: 673c604de7766602d814ebc6e4d2075a6fb8f2cc3e5ce079f45b115ce59c4baf
font_01_sfnt_off00007404.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7404 10768 bytes
SHA-256: 47142ee5d5281aa4d63fd4c950dacf7954bde584b047801c65090bef5f9470c0