Malicious PDF — malware analysis report

Static analysis result for SHA-256 248017318bd9bdd7…

MALICIOUS

PDF

133.7 KB Created: 2021-05-13 23:48:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: b4aa782c2215ec254a49470383eb1bf0 SHA-1: 580673eb162ce59eb3df6138cd5d5c04f5e925d7 SHA-256: 248017318bd9bdd7895dbf1f155bccfd36083fefa4be0e5c76169bd494409156
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 0.9993

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://mezovuduw.ru/strik?utm_term=2005+chevy+malibu+transmission+problems PDF link annotation
    • http://topdouche.xyz/derechos_humanos_conceptos_de_autoresgsy38.pdfIn PDF document text
    • http://kesuvajeb.scienceontheweb.net/sampurn_aarti_sangrah_marathi.pdfIn PDF document text
    • http://redirunna.xyz/resavijilikogizim5veyg.pdfIn PDF document text
    • http://jnatural.space/duzudfwjpw.pdfIn PDF document text
    • http://insta-sale.site/what_to_do_when_epson_printer_wont_printdqsti.pdfIn PDF document text
    • http://nature-ital.space/jixefiwug7z93.pdfIn PDF document text
    • http://timecodes.net/tupac_shakur_mp3_musicqsgns.pdfIn PDF document text
    • http://lumejaramelu.mygamesonline.org/xisuvigadokojewigeguz.pdfIn PDF document text
    • http://saleproducts.pro/99363771648nzf7h.pdfIn PDF document text
    • http://nopotaz.medianewsonline.com/trombone_arpeggios.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/cef72f2d-ab5e-4377-9339-99c8c0f51ef6/how_to_connect_mini_smart_socket_to_wifi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6bef4378-0087-460a-a63c-394934faefe8/how_long_usps_customs.pdfIn PDF document text
    • http://jezawirigi.epizy.com/91692181173.pdfIn PDF document text
    • https://s3.amazonaws.com/fibesezati/anker_bluetooth_folio_keyboard_case_for_ipad_air_2_review.pdfIn PDF document text
    • https://s3.amazonaws.com/lupebesu/63392741270.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d1d4195d-e76b-49ed-9e21-8645e55f8118/parabody_ex350_home_gym_manual.pdfIn PDF document text
    • http://milodip.epizy.com/princess_diaries_2_full_movie_subtitle_indonesia.pdfIn PDF document text
    • https://s3.amazonaws.com/pululusodogi/how_do_you_make_arbys_red_ranch_sauce.pdfIn PDF document text
    • https://s3.amazonaws.com/tigovatolis/how_do_you_unclog_a_septic_drain_field.pdfIn PDF document text
    • http://borogibapomad.epizy.com/81332937920.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0f9c0138-6de6-44d1-bb78-e34c5ac49b9e/helter_skelter_an_american_myth_episode_3.pdfIn PDF document text
    • http://lovexutafaroram.rf.gd/sifilugo.pdfIn PDF document text
    • http://wowimes.epizy.com/saxunilodewidisesuw.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_off0001d0b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1D0B3 5776 bytes
SHA-256: c1dd7b4a3929101725d213377685cacc564ee6cd379fb3e8c8a52b169dd064ff
font_01_sfnt_off0001e43b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1E43B 10696 bytes
SHA-256: 6093d8f4e89632401003c72607365c561aafb5a1e8562d29f22d4763653e3bed

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