Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd761d0c4a778f92…

MALICIOUS

PDF

70.8 KB Created: 2021-02-11 14:12:23 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 404a7debf6bf5a270794728862dd4d1c SHA-1: fefd9b7dc71d2c80e2f224c2f718b8cb78e3ded2 SHA-256: fd761d0c4a778f92a68b84df7ae0c3eefc17fe3312f0839d1b30234a57c467b5
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://jacksth.ru/123?utm_term=12+minute+mile+speed PDF link annotation
    • http://hyipinvest.site/4705974900qssvn.pdfIn PDF document text
    • http://martans.space/chips_movie_freew8vvi.pdfIn PDF document text
    • http://yoganchik.space/construction_europenne_cm2rph1m.pdfIn PDF document text
    • http://pixelbarista.com/538299506074inti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4468563/normal_600ac99adb21a.pdfIn PDF document text
    • http://mon-cmbretagne.com/cantilever_beam_reportj3wyr.pdfIn PDF document text
    • https://suxamoka.weebly.com/uploads/1/3/4/8/134876373/78f5f74fdd.pdfIn PDF document text
    • http://olx-delivery.cc/pivuwafugifisorugapezuisdsd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478134/normal_600cb4cc4a164.pdfIn PDF document text
    • http://drive4mclanemilwaukee.com/fonction_de_lexcipitfb4jx.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486192/normal_5fe318d2b22b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477629/normal_5fe2d96ecfbf9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://giduzorim.epizy.com/82044786843.pdfIn PDF document text
    • http://bevowamudad.epizy.com/45758705432.pdfIn PDF document text
    • http://zusirutovazume.epizy.com/faxudeduranotilakofalowiz.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_off0000da58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA58 4888 bytes
SHA-256: 93eaf48f0142760d0cfff53bf91ce196cb9dcf802fb487733cb2517cf152285e
font_01_sfnt_off0000eaee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAEE 10532 bytes
SHA-256: 11fd7b2ca840a62965fee8d575a68bdb582eb116b2a300e7e26bc440b3ad61be