Malicious PDF — malware analysis report

Static analysis result for SHA-256 f6bc0bfdeefc9ed8…

MALICIOUS

PDF

67.8 KB Created: 2021-02-24 15:48:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 10ea3cf59a4f6991592304bde185a3dc SHA-1: f94b7d4e4299a584fa95c8859863081a34e79beb SHA-256: f6bc0bfdeefc9ed8a97a524d86dde3f5f061fe4b83854ebc79e15b72fa1194f6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://druttle.ru/wix?keyword=factory+physics+2nd+edition+solution+manual+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382781/normal_6011deff4148c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484999/normal_5fcf8aa53485f.pdfIn PDF document text
    • http://doucheapp.xyz/34167547432q115z.pdfIn PDF document text
    • http://banikomapi.22web.org/avatar_korra_comics.pdfIn PDF document text
    • https://xuwupeloz.weebly.com/uploads/1/3/4/7/134734270/87fa50eabea.pdfIn PDF document text
    • https://rajidorux.weebly.com/uploads/1/3/1/4/131453086/zobikinusugowedoti.pdfIn PDF document text
    • http://bobositufunoto.iblogger.org/jezujenonuzunewedufo.pdfIn PDF document text
    • http://resufomuvojos.22web.org/simple_html_registration_form_template.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489583/normal_603014d37a2ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484834/normal_601c7bcf6c2b9.pdfIn PDF document text
    • http://paypallsecurity.com/20320510153gavgr.pdfIn PDF document text
    • http://e-devletturkiyeaidatsistemimgovtr.com/kivoflcyfd.pdfIn PDF document text
    • https://gikesusemu.weebly.com/uploads/1/3/4/7/134775173/rasoba_fedolilexiti_natifolul.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/29387733365.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://widifusi.myartsonline.com/15659526593.pdfIn PDF document text
    • http://bunigerada.rf.gd/98328233814.pdfIn PDF document text
    • http://rovarede.rf.gd/vozibazabojipu.pdfIn PDF document text
    • http://zezazemana.epizy.com/cyclopentyl_chloroformate_synthesis.pdfIn PDF document text
    • http://tezebidurob.epizy.com/login_page_responsive_bootstrap_template.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_off0000cca3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCA3 5584 bytes
SHA-256: 3e5d4ad2de9e163430c52a398b352c65367ecec1866678c6e73257faac0bb58b
font_01_sfnt_off0000df84.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF84 10004 bytes
SHA-256: 8e00af3b0645074d3d8287468ed9e9b25aae8f518a9e1ce40d9edb69322e3321