Malicious PDF — malware analysis report

Static analysis result for SHA-256 47226a21912c62f1…

MALICIOUS

PDF

74.1 KB Created: 2021-03-06 17:31:01 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: a975890ad99b4012382d7da220713307 SHA-1: 9421f9f35705bcee6da2ed20c8d802de0f01f91a SHA-256: 47226a21912c62f18742777cff1fd9064b6edab3ca7499ab225f3582da5964fd
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 0.9960

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://vilenefex.ru/wix?keyword=frog+diagram+internal PDF link annotation
    • http://dutov.org/kifozodifefatelezasufeib9p.pdfIn PDF document text
    • https://jorevubo.weebly.com/uploads/1/3/4/8/134869484/jabanat-busud.pdfIn PDF document text
    • http://fortysgjdk.fun/daxabebikizoni5ns82.pdfIn PDF document text
    • http://workmonster.net/jazz_guitar_beginner_books9mmg.pdfIn PDF document text
    • http://yogist.fun/maze_runner_3_hindi_dubbed_movie_download_filmyzillat1lb2.pdfIn PDF document text
    • http://naturwow.space/c-mass_downloadtluxe.pdfIn PDF document text
    • https://ruxapumuful.weebly.com/uploads/1/3/4/6/134682584/faf760.pdfIn PDF document text
    • http://apsdd54gfv.xyz/98870710732zyahy.pdfIn PDF document text
    • http://senorifeg.iblogger.org/salesforce_report_login_type.pdfIn PDF document text
    • https://vojidejera.weebly.com/uploads/1/3/2/6/132695434/3789820.pdfIn PDF document text
    • https://witatubaf.weebly.com/uploads/1/3/1/6/131606367/sogavuxumoxu.pdfIn PDF document text
    • http://springwin.space/asheville_pinball_museum_discountsgfq2.pdfIn PDF document text
    • http://form-lnstagramverificationbadge.com/tabutekapuz6u1qi.pdfIn PDF document text
    • http://m-laskin.ru/jukaludajasolerabuzi0ybbj.pdfIn PDF document text
    • http://wwbook.org/2021_ford_mustang_mach-e_select_hpuy4tm.pdfIn PDF document text
    • http://card2card.live/derecho_procesal_civil_oxford_francisco_jos_contreras_vacamwg4o.pdfIn PDF document text
    • http://picsonair.com/merriam_webster_dictionary_apk_premium72chj.pdfIn PDF document text
    • http://dapisamifo.22web.org/nike_air_force_1_valentines_day_2005.pdfIn PDF document text
    • https://xizirujikalowev.weebly.com/uploads/1/3/1/4/131454807/diwuv.pdfIn PDF document text
    • https://kalogipewaga.weebly.com/uploads/1/3/4/5/134595512/cb55aa3eaacedd.pdfIn PDF document text
    • https://mozawexi.weebly.com/uploads/1/3/1/8/131856146/paxunosewexazipaxala.pdfIn PDF document text
    • https://jupagefux.weebly.com/uploads/1/3/1/3/131398252/jabuz_dijekapo_rokuzesafusum.pdfIn PDF document text
    • http://taptopbot.com/mini_militia_unlimited_bomb_ammo_nitro_apkwzsp6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nivufebolira.epizy.com/brdm_2_pubg_full_form.pdfIn PDF document text
    • http://xibobok.rf.gd/spectrometric_identification_of_organic_compounds_solutions_manual.pdfIn PDF document text
    • http://jabirajusijike.epizy.com/construction_health_and_safety_plan.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_off0000e7cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7CC 4924 bytes
SHA-256: 74ba6bf30d8365acdc1fca3430d538664f46f535862e4e66681ddba565b76536
font_01_sfnt_off0000f87c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF87C 10264 bytes
SHA-256: 26f0567b8559cf8cd9748ea0aa466af394ec376721bd72e099f5c40e477eaac5

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