Malicious PDF — malware analysis report

Static analysis result for SHA-256 95d8472d60329614…

MALICIOUS

PDF

74.5 KB Created: 2021-04-04 16:37:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8864e546f133201ff2c6a5f07ff03362 SHA-1: 55ae925f7bb29651f3101371b8f5f02c92b6653b SHA-256: 95d8472d603296140bdc91f3279883142321a4ae4e4956813dec115bea90d5e4
126 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

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 0.9990

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://golowaki.ru/award?keyword=sap+bpc+450+pdf+download PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4370309/normal_5fd069ed9530c.pdfIn PDF document text
    • https://cdn.sqhk.co/wedowetaso/PFiehhi/time_dodgers_play.pdfIn PDF document text
    • https://gokixojegesefa.weebly.com/uploads/1/3/4/8/134864476/39ed8d8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_600f5b1084068.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417808/normal_5fe3dfcea8584.pdfIn PDF document text
    • http://pavajevubuj.iblogger.org/vizitotokakalov.pdfIn PDF document text
    • https://vekatugid.weebly.com/uploads/1/3/4/5/134592715/nikukafe-sedawizub-niboreke-zokunajakuxuf.pdfIn PDF document text
    • https://cdn.sqhk.co/fopikudapom/idijjaU/6131523028.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370055/normal_5fee33d37fd6c.pdfIn PDF document text
    • http://ppl-nutrshopfit.website/43140389635w5fmb.pdfIn PDF document text
    • http://erethiztzj.space/photoshop_quick_keys_pchbl6r.pdfIn PDF document text
    • https://cdn.sqhk.co/tinawegu/ac6ihMt/xunixetojumop.pdfIn PDF document text
    • https://gozarijaleb.weebly.com/uploads/1/3/4/3/134337750/8c71d8cbcc03b.pdfIn PDF document text
    • http://vashmaster.info/pupijotaniluj2ngkt.pdfIn PDF document text
    • http://callup.today/prime_factorization_worksheets_grade_6zhtpn.pdfIn PDF document text
    • https://sojebubibofanex.weebly.com/uploads/1/3/4/5/134512436/8023913.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417997/normal_600c0638d207d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sojidalome.rf.gd/51825548617.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/82034290046.pdfIn PDF document text
    • https://s3.amazonaws.com/zepifudoxapo/29583307894.pdfIn PDF document text
    • https://s3.amazonaws.com/xowasosuf/81529600680.pdfIn PDF document text
    • https://s3.amazonaws.com/medaliwifufugel/lulapurupixufebonaxu.pdfIn PDF document text
    • https://s3.amazonaws.com/rorives/descriptive_writing_examples_describing_a_person.pdfIn PDF document text
    • http://wotalajo.epizy.com/editing_to_word_document.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e159.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE159 5564 bytes
SHA-256: 7e03a5acd89926b851ffc2e278db75fe88373ce2679e8ebd3e9af830d87cc8f5
font_01_sfnt_off0000f47b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF47B 11364 bytes
SHA-256: ffc95671ffb3e53b9c6434a365f9fdecb1507ca3ca75de9b7110a2077f19af6e

Open this report in the interactive analyzer, or submit your own file for analysis.