Malicious PDF — malware analysis report

Static analysis result for SHA-256 22bedfb754545f74…

MALICIOUS

PDF

50.6 KB Created: 2021-02-26 20:36:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2d471770af1e59b8f17858db30cacd63 SHA-1: 53cc6c963c00a02af1260860716ed1bfff12e980 SHA-256: 22bedfb754545f742df48056ede4f0303453e2b0bef274b61c976dec57270a21
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7391

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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
  • 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://seumenha.ru/aws?utm_term=dunkin%2527+donuts+chocolate+glazed+doughnut+calories PDF link annotation
    • http://xijulefabogi.getenjoyment.net/digi_002_drivers_for_logic_pro_x.pdfIn PDF document text
    • http://tiktokcopyrighthelpteam.com/forgot_hotmail_password_answer_security_questionvyk46.pdfIn PDF document text
    • https://nometiru.weebly.com/uploads/1/3/4/3/134379396/xowulutaluzulezax.pdfIn PDF document text
    • https://mekegeno.weebly.com/uploads/1/3/1/8/131856852/51acfec8cdba722.pdfIn PDF document text
    • https://digagewopaloz.weebly.com/uploads/1/3/4/6/134634746/60326e4e3a3a1.pdfIn PDF document text
    • https://dizogesutupini.weebly.com/uploads/1/3/4/6/134631076/9821050.pdfIn PDF document text
    • https://jafedemigizol.weebly.com/uploads/1/3/4/5/134588438/624330.pdfIn PDF document text
    • https://bozaxadoduzake.weebly.com/uploads/1/3/4/3/134306622/lozabil_suzawivi.pdfIn PDF document text
    • https://wexemexaxixu.weebly.com/uploads/1/3/4/7/134709907/fovirisokeponuno.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419626/normal_5fcf74ab3e603.pdfIn PDF document text
    • http://hookup754.fun/sekuforikebajupilrlvp.pdfIn PDF document text
    • http://bbflowers.net/alicia_keys_song_new_yorkc4koj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414167/normal_5fe65f6d1dfcc.pdfIn PDF document text
    • https://wowemaba.weebly.com/uploads/1/3/1/3/131380083/posalam_zigodulatinit_xonudo_fowetigidipi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366350/normal_601a5a9bea6d2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410216/normal_602f22a3d0abf.pdfIn PDF document text
    • http://maykistore.ru/3rd_edition_monsters_of_faerunsqq9g.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408348/normal_602142c9963c5.pdfIn PDF document text
    • http://nizowozutagele.atwebpages.com/44879946742.pdfIn PDF document text

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