Malicious PDF — malware analysis report

Static analysis result for SHA-256 2bde8bf63a304580…

MALICIOUS

PDF

72.5 KB Created: 2021-03-25 07:49:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 696ef47d0acb7ae39c7fb2376aa83a9c SHA-1: 97179b5690c3033c514665e485f3456a92d42dd6 SHA-256: 2bde8bf63a3045800da1573f0db6e24ab8e7424698f12cb525426bd954e909c2
126 Risk Score

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 0.9993

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://lozipotod.ru/wix?keyword=nandog+pet+gear+crown+bed PDF link annotation
    • http://fejavodexata.getenjoyment.net/arcadia_quest_riders_rules.pdfIn PDF document text
    • https://cdn.sqhk.co/menigopas/Upjfl93/social_connectedness_theory.pdfIn PDF document text
    • http://bimonetejatoleb.mygamesonline.org/pakojusowukakalor.pdfIn PDF document text
    • https://rimofunoduw.weebly.com/uploads/1/3/4/5/134525219/54cdbe3f4ee630.pdfIn PDF document text
    • https://fuwewarudizikip.weebly.com/uploads/1/3/4/6/134644733/zasedilorunit.pdfIn PDF document text
    • http://kovuzaxaf.medianewsonline.com/runewixe.pdfIn PDF document text
    • https://poxosuliw.weebly.com/uploads/1/3/1/3/131383655/2b59a5f00439.pdfIn PDF document text
    • https://cdn.sqhk.co/fovulifavu/fEhjCJC/amphioxus_development.pdfIn PDF document text
    • https://cdn.sqhk.co/tozerutiwezu/ji3hhuV/70071304561.pdfIn PDF document text
    • http://zakofuta.66ghz.com/11997745616.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zadosuwiwebuw.epizy.com/betfair_poker_app_android.pdfIn PDF document text
    • https://992bddda-184d-467f-a815-0165b41a2208.filesusr.com/ugd/69695d_075a28a3b8c34d6ea90cf35d75fcf899.pdf?index=trueIn PDF document text
    • http://fejukuvazov.rf.gd/64062570506.pdfIn PDF document text
    • http://piwakitidi.onlinewebshop.net/the_odyssey_penguin_clothbound_classics.pdfIn PDF document text
    • http://gaxomin.rf.gd/luxojudegajaligakujam.pdfIn PDF document text
    • https://276658a2-c6b1-4a23-bc3b-56c82bce4278.filesusr.com/ugd/f9448a_653a81389f6d4e88a0fcfdec91a265a4.pdf?index=trueIn PDF document text
    • https://167c8e7b-8160-49a2-a88e-f26749d647c8.filesusr.com/ugd/1ad47d_6dc4c5f08f97416f8eb4318e89b1c822.pdf?index=trueIn PDF document text
    • http://pegalisijeg.epizy.com/excel_two_sheets_side_by_side.pdfIn PDF document text
    • http://vafotapezetu.rf.gd/after_effects_templates_adobe.pdfIn PDF document text
    • http://sovizaz.epizy.com/zasaledaxovudunedider.pdfIn PDF document text
    • http://kukalofawofami.epizy.com/angularjs_tutorial_for_beginners.pdfIn PDF document text
    • http://pozadel.epizy.com/22167658131.pdfIn PDF document text
    • https://be5a03d2-cb36-429a-bb4d-4773f067dd3b.filesusr.com/ugd/b46ca8_8337b4a202c34fa7a3f7de6a8ad046fe.pdf?index=trueIn 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_off0000db20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB20 5232 bytes
SHA-256: 75c13c6fece3e8f0d2446e78508786ebf44af656967d1cedc9795f8ec3864c19
font_01_sfnt_off0000ed14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED14 11196 bytes
SHA-256: 58dcb96e683242bf5a9e6c611dddd1aa59d3efbc7fea2790cd3577b0a65f96e3

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