Malicious PDF — malware analysis report

Static analysis result for SHA-256 18f35ea71c9aaf5b…

MALICIOUS

PDF

72.6 KB Created: 2021-02-25 06:51:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 99b14bbe67405ede5e3822117320a5da SHA-1: d99a72e6f61a3db0e8524dd0c71c5405a200b50e SHA-256: 18f35ea71c9aaf5b53397fb77de0c9fdf88766fc8087e86b3575e5d47e93e452
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://maypoin.ru/123?utm_term=sanyo+tv+codes+directv PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4378155/normal_6023bce417dd1.pdfIn PDF document text
    • https://risegexof.weebly.com/uploads/1/3/4/6/134661868/sepugusi.pdfIn PDF document text
    • http://jumuzonogajal.iblogger.org/what_is_the_minimum_vision_required_for_driving_uk.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419644/normal_5ffdfc10b0427.pdfIn PDF document text
    • https://cdn.sqhk.co/lemijexo/lSmiYja/66188054596.pdfIn PDF document text
    • https://kiwakamumosa.weebly.com/uploads/1/3/5/9/135963193/629bdedbb21fb.pdfIn PDF document text
    • https://kuwofepex.weebly.com/uploads/1/3/2/7/132740654/jiwomo.pdfIn PDF document text
    • http://wolotalute.iblogger.org/2019_bollywood_new_movies_free.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378157/normal_5ff4edd1328aa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4470980/normal_602f96bf63816.pdfIn PDF document text
    • http://fovajifep.iblogger.org/rofabiwuga.pdfIn PDF document text
    • https://fikuzafunowu.weebly.com/uploads/1/3/1/8/131857523/popozugadinogiruv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4500186/normal_5fec96f97ca02.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487632/normal_601207bb59bcd.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jiporeve.epizy.com/gebovunuvakebejebas.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_off0000e132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE132 5164 bytes
SHA-256: 27452d037f7fb520c5d64a5097eb66d3b5d2bafee4b95bcaa10067522a6f5f23
font_01_sfnt_off0000f2db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2DB 10228 bytes
SHA-256: 9638feb2d35390d7feab7c34437c4e4d71ba8b1ff8779b515c4794eba06ca2c3