Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2fe9c06c084ccd8…

MALICIOUS

PDF

79.9 KB Created: 2021-03-12 15:14:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f814028407e73db9242cf4a98cedcf1d SHA-1: 14e7974f0b4c35f68f62c490e8ea5a5f1e3acfc0 SHA-256: b2fe9c06c084ccd8230a4b707e88d5567c431fcb165e7b300b5fd84d7892c9e6
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 0.9997

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://golowaki.ru/wix?keyword=fbla+competitive+events+study+guide+2019 PDF link annotation
    • http://kefijor.mygamesonline.org/xuxewu.pdfIn PDF document text
    • http://vopugixeroramox.medianewsonline.com/xilemananokivifevedinu.pdfIn PDF document text
    • http://manybigs.space/63236333742d6sru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_601bbf42cc694.pdfIn PDF document text
    • http://derilezin.sportsontheweb.net/samsung_c480_replace_transfer_belt.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412165/normal_60065fb159482.pdfIn PDF document text
    • http://zisuroto.mygamesonline.org/jixetixudot.pdfIn PDF document text
    • http://shimano-stradic.ru/transformer_bushing_failure_mode4g240.pdfIn PDF document text
    • http://tonedomopoja.scienceontheweb.net/puxadu.pdfIn PDF document text
    • http://trycabinets.xyz/corbettmaths_composite_functions_inverse_functions_answersi8nex.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393883/normal_604572b05c693.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366367/normal_6015887334ea2.pdfIn PDF document text
    • http://dololebajug.scienceontheweb.net/49518783672.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zitasixan.atwebpages.com/el_pollo_loco_chicken_avocado_burrito_calories.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e6bef09-ee62-40fb-9e4c-1b5714674c25/best_morals_for_stories.pdfIn PDF document text
    • https://s3.amazonaws.com/novipaliwid/61557890992.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fddc9622-62a5-4790-954f-6b8a347d5651/how_to_download_from_the_gallery_sims_4_cracked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/decfc235-24fd-4561-a196-44963d5943b4/john_deere_mower_wont_engage_blades.pdfIn PDF document text
    • https://s3.amazonaws.com/zemunomipazikez/xumutavojilo.pdfIn PDF document text
    • https://s3.amazonaws.com/gaxuremewuger/diagonalize_quadratic_form_mathematica.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb557829-3267-4285-8857-6993ad67e128/sumurivelidosedufibivevi.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/what_is_the_setting_of_the_story_coraline.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_off0000f9a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9A1 6036 bytes
SHA-256: e3a26213867e8a6fadd8df8afcabc2997c927f58485762655e09f246ef49dd3e
font_01_sfnt_off00010e2a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E2A 10756 bytes
SHA-256: 638d23ae9e71df8bb501e9fe5d18f70a54eb8d947367428e20ac1e3e65c50812

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