Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e05b6c28a7c0536…

MALICIOUS

PDF

76.7 KB Created: 2021-06-01 16:54:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 8edae135567bea5753c97d3ab3647123 SHA-1: 10ecc3c656afece93febb56fc2295ab719fb9b15 SHA-256: 9e05b6c28a7c053612b4151bd59855a3056dd8743dd3fb687b6014b0dcbff606
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 0.9996

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://xezojetit.ru/123?utm_term=rede+referenciada+bradesco+saude+rj+pdf PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4411219/normal_6017b33987c05.pdfIn PDF document text
    • https://dexuruxewiripo.weebly.com/uploads/1/3/2/6/132682754/redifudo_tikawanefokufu_tabaru.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383160/normal_606b9a9ee5797.pdfIn PDF document text
    • https://mamonujiduvef.weebly.com/uploads/1/3/4/5/134525279/botikukasuzele.pdfIn PDF document text
    • https://fajuvupo.weebly.com/uploads/1/3/5/3/135310445/galuk.pdfIn PDF document text
    • https://fuvukajewub.weebly.com/uploads/1/3/3/9/133999399/b62326.pdfIn PDF document text
    • https://vezafowifav.weebly.com/uploads/1/3/1/6/131637603/xunexu.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zekodunu.pbworks.com/f/granny_outwitt_mod_apk_1.7_3_download_1.6_1.pdfIn PDF document text
    • http://sodopateduke.pbworks.com/w/file/fetch/144427029/what_is_pipe_and_map_in_angular_7.pdfIn PDF document text
    • http://wuxikadafi.pbworks.com/w/file/fetch/144418953/44111995979.pdfIn PDF document text
    • http://zekodunu.pbworks.com/f/what_is_cadastral_map_meaning_in_hindi.pdfIn PDF document text
    • http://dekokos.pbworks.com/f/last_day_on_earth_hack_ios_2020.pdfIn PDF document text
    • http://zepadatoju.pbworks.com/w/file/fetch/144416004/qualcomm_atheros_ar9285_wireless_network_adapter_windows_10.pdfIn PDF document text
    • http://wixugigir.pbworks.com/w/file/fetch/144436773/redox_titration_with_potassium_permanganate_lab_report_discussion.pdfIn PDF document text
    • http://xojifot.pbworks.com/f/latagazuvebujojotobawibaf.pdfIn PDF document text
    • http://pojaweku.pbworks.com/w/file/fetch/144462141/how_to_use_nck_dongle_android_mtk.pdfIn PDF document text
    • http://sinorodolu.pbworks.com/f/53583715124.pdfIn PDF document text
    • http://ziduzobif.pbworks.com/w/file/fetch/144454542/salidaso.pdfIn PDF document text
    • http://refarumiba.pbworks.com/f/38192680105.pdfIn PDF document text
    • http://wuranosa.pbworks.com/w/file/fetch/144416427/kifababivi.pdfIn PDF document text
    • http://sazupamufode.pbworks.com/f/how_to_do_optimization_problems_precalculus.pdfIn PDF document text
    • http://munonoraze.pbworks.com/w/file/fetch/144457392/piramide_de_las_necesidades_basicas_de_abraham_maslow.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_off0000ed23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED23 5340 bytes
SHA-256: c655258875b3e3d0adc3154131e0fd752cb99e05aefb47da0d02156727436291
font_01_sfnt_off0000ff5d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF5D 11824 bytes
SHA-256: f9ed6e613ef88984e8c6e31097d2d6dd474b7fe22d81b2da859eafbd40c3973c

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