Malicious PDF — malware analysis report

Static analysis result for SHA-256 08771f9624d4560f…

MALICIOUS

PDF

71.8 KB Created: 2021-02-23 08:15:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a55bace587ceff75430a854c6774330c SHA-1: 2083ea28914bd3274ed77ceea48c2b1d25bc1942 SHA-256: 08771f9624d4560fc2e5a4b53e51b9bf0c9ad3041c801c4ebdaa5accbe20ac4f
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://druttle.ru/wix?keyword=fortnite+account+generator+xbox+free PDF link annotation
    • http://springital.fun/restaurantes_modo_tasty_diners_20181sb1y.pdfIn PDF document text
    • http://hackins.site/dububipurm6e2h.pdfIn PDF document text
    • https://cdn.sqhk.co/guzamuvi/jhhagc2/meligedekezulodibono.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370309/normal_5fc907fdad459.pdfIn PDF document text
    • http://dixojele.22web.org/free_templates_for_word_borders.pdfIn PDF document text
    • https://cdn.sqhk.co/kekotenonaxu/icgdcrh/89117447667.pdfIn PDF document text
    • https://cdn.sqhk.co/lazujanaziri/iyC1Phi/economist_election_model_house.pdfIn PDF document text
    • https://cdn.sqhk.co/zejizoguzut/gcibhRz/telawo.pdfIn PDF document text
    • http://smallita.space/apple_time_capsule_router_manual0053s.pdfIn PDF document text
    • https://cdn.sqhk.co/jupozaregu/MghihnN/xateserujibakonupoxe.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzezufe/oKhfSef/dog_cat_bird_hospital_phoenix.pdfIn PDF document text
    • https://cdn.sqhk.co/suxupijisajo/hbhgzhi/earthlink_net_webmail_help_login.pdfIn PDF document text
    • http://bewerab.22web.org/87063629703.pdfIn PDF document text
    • https://cdn.sqhk.co/gudopokobipa/ciavkK4/rinufewazubapezewe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368477/normal_6024f0a938f99.pdfIn PDF document text
    • http://babixuxuw.22web.org/xamagup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/pilazi/free_chinese_series_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/sitesakaxalulasisedote.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/tawabejiwirafozawomala.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/polar_to_rectangular_form_matlab.pdfIn PDF document text
    • https://s3.amazonaws.com/pavujiniz/appointment_of_auditor_companies_act_2013_form.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_off0000dc46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC46 5000 bytes
SHA-256: 9b107834818851f77fbe45718569860b4d00ea1126ecd51c3d7702ed6c3b52de
font_01_sfnt_off0000ed62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED62 10692 bytes
SHA-256: f899af903a89cb842295b9f8e43aa406fac39b2a297aec6b83a980cc0f04910b

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