Malicious PDF — malware analysis report

Static analysis result for SHA-256 c927d68a7776f2ab…

MALICIOUS

PDF

94.8 KB Created: 2021-03-15 11:41:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2d038363a73eb06f0b3c41daaee99e74 SHA-1: 2e9449157cdcd00079583968e05b388f223c3f1c SHA-256: c927d68a7776f2ab013e9c7a8fe938214a7716ba724283d3b5b1356fcc2818b2
246 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous external links, many pointing to disposable hosting services, indicative of a link farm designed to obscure the final destination. The critical heuristic 'SE_BRAND_CREDENTIAL_PHISH' specifically identifies a Netflix impersonation lure pointing to a malicious redirector. The ML classifier also strongly flagged this PDF as malicious. The presence of embedded URLs and the overall structure suggest an attempt to lead the user to a phishing page.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 7

  • 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 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.
  • 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://xesizoge.weebly.com/uploads/1/3/1/4/131452949/1365355.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://jumiwimov.ru/123?utm_term=mirae+asset+securities+usa+inc+annual+report PDF link annotation
    • https://cdn.sqhk.co/jadepibake/qidGahh/18070537153.pdfIn PDF document text
    • http://zememor.sportsontheweb.net/what_were_the_largest_cities_in_1900.pdfIn PDF document text
    • http://mewudaguzexo.sportsontheweb.net/turofimobefelokunobafugir.pdfIn PDF document text
    • https://cdn.sqhk.co/torazanopuni/7Jd6Phf/73288566905.pdfIn PDF document text
    • https://cdn.sqhk.co/muwazubivotu/jagchai/xegamilumopal.pdfIn PDF document text
    • http://xovebud.mygamesonline.org/26363065599.pdfIn PDF document text
    • https://xesizoge.weebly.com/uploads/1/3/1/4/131452949/1365355.pdfIn PDF document text
    • https://dolilugufup.weebly.com/uploads/1/3/0/7/130776220/zunerolefowisudeva.pdfIn PDF document text
    • http://lologunaw.mygamesonline.org/best_cv_template_word_for_students.pdfIn PDF document text
    • https://luvepuxoworusoj.weebly.com/uploads/1/3/4/6/134660421/tejazuzinanelirokubi.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/bhjhihj/final_fight_apk_data.pdfIn PDF document text
    • https://cdn.sqhk.co/mivuxakadu/LiiWih6/woodworking_projects_for_boy.pdfIn PDF document text
    • https://webexozaputer.weebly.com/uploads/1/3/2/6/132681415/6489834.pdfIn PDF document text
    • http://nerazegizetikam.getenjoyment.net/antimicrobial_properties_of_spices.pdfIn PDF document text
    • http://tezuveripoxub.mypressonline.com/39378901915.pdfIn PDF document text
    • https://cdn.sqhk.co/zapiseniw/ijfhbgf/stickman_soccer_hack_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/wufevinek/1sFFaS5/89554166421.pdfIn PDF document text
    • https://cdn.sqhk.co/vusutazomaga/oibifX3/nezuzitafixutane.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fuxunowelujuxa.atwebpages.com/what_do_u_mean_by_a_quick_study.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_off0001365a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1365A 4932 bytes
SHA-256: 91e580c1859df3f430e54b86ee869c2efc8cf60d14763f4eca076590e309b25d
font_01_sfnt_off00014739.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x14739 10856 bytes
SHA-256: 090d698640784a1912b434106deaeeb04665a893208a83db1d99d8f1f2e2e842