Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5568d44e448d96e…

MALICIOUS

PDF

67.4 KB Created: 2021-02-22 14:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 09d18d179f2408fa8fdf7f560307147d SHA-1: 6c21cd9c44a0c993a014efcdb5bc22f334e872ee SHA-256: e5568d44e448d96ec5b1935bdd0f87c345dab53f19a003bcf1744bcd83d0ab38
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
  • Brand-impersonation credential phishing lure critical SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: action link to abused redirector https://fezuwarojeti.weebly.com/uploads/1/3/1/3/131383544/bobuxemogilojexa.pdf.
  • 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=find+discord+user+id PDF link annotation
    • https://fezuwarojeti.weebly.com/uploads/1/3/1/3/131383544/bobuxemogilojexa.pdfIn PDF document text
    • https://jekaboda.weebly.com/uploads/1/3/5/3/135398795/lakidu_dowomefivo_kiwigakovanum.pdfIn PDF document text
    • https://cdn.sqhk.co/wimiwupo/hjLliax/drag_racing_classes_australia.pdfIn PDF document text
    • http://trend-sales.fun/tovosimejegoj7vouj.pdfIn PDF document text
    • https://cdn.sqhk.co/ropikenetu/GifhjCk/chicken_run_full_cast_imdb.pdfIn PDF document text
    • https://cdn.sqhk.co/zubavagi/Jgh34gj/39210587601.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386848/normal_5fcd107039522.pdfIn PDF document text
    • http://pravagims.net/252037202346mg5j.pdfIn PDF document text
    • https://gebifafotuzuwi.weebly.com/uploads/1/3/5/3/135324040/kikiwefaxuvojilup.pdfIn PDF document text
    • https://lapudaxorekoj.weebly.com/uploads/1/3/0/8/130814283/tedas.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4452846/normal_5ff71203a3c44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477379/normal_601ef389416be.pdfIn PDF document text
    • http://ubzvp.com/penizabogafozafu0t1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380528/normal_60162546211be.pdfIn PDF document text
    • http://okrasote.info/695403234248ko3f.pdfIn PDF document text
    • http://titanof-filtr.ru/pemikidituzgsuf6.pdfIn PDF document text
    • https://kuvomudoriri.weebly.com/uploads/1/3/1/4/131406544/lisazufire.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_off0000cef3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCEF3 4648 bytes
SHA-256: d82efa4b195c31b2bd8b182540f1dc272d0842ce9129fb69b4d625849bf3257e
font_01_sfnt_off0000ded2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDED2 9948 bytes
SHA-256: 79916957fccfd3cba1361a1face00ed63f72e5b9f98dc86363935ac0df06216f