Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2bcc2056f4247f3…

MALICIOUS

PDF

82.8 KB Created: 2021-03-28 02:47:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: d0ab5d2901ca4cd6b039deca9663478e SHA-1: 104978384d90da7c63eacb8d2cae4cd20b1f2f5d SHA-256: e2bcc2056f4247f3b7dc0764c5c6114b1a9a917319ffa1892a5b8e6b79538b6f
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://fokemale.ru/strik?utm_term=how+to+lose+fat+stomach+exercise PDF link annotation
    • http://tokio-2020.fun/wosomop93f81.pdfIn PDF document text
    • http://sasavojaraw.iblogger.org/lubaraxaz.pdfIn PDF document text
    • http://jesofoma.getenjoyment.net/telecharger_catalogue_schneider_2020.pdfIn PDF document text
    • https://zivazumuwekaf.weebly.com/uploads/1/3/2/6/132695746/4101804.pdfIn PDF document text
    • https://wusafasugulub.weebly.com/uploads/1/3/4/5/134586051/6374b4af4b5ac1.pdfIn PDF document text
    • http://makeyourself.xyz/212325311142p9ce.pdfIn PDF document text
    • https://wewivipumi.weebly.com/uploads/1/3/0/7/130775870/632ee5.pdfIn PDF document text
    • http://femonejigajape.mywebcommunity.org/miss_peregrine_home_for_peculiar_full_movie_in_tamil_download.pdfIn PDF document text
    • http://gonzo-3d.com/what_type_of_plate_boundary_does_indonesia_haveynlkm.pdfIn PDF document text
    • http://jodazok.22web.org/bujagevakakuka.pdfIn PDF document text
    • https://wunaramalus.weebly.com/uploads/1/3/4/5/134576193/8770760.pdfIn PDF document text
    • http://leworowotamab.iblogger.org/sagidiwekuze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lodusuvixad.rf.gd/microsoft_word_gantt_chart_template.pdfIn PDF document text
    • https://s3.amazonaws.com/wizedumi/anglican_shona_hymn_book_free.pdfIn PDF document text
    • http://zuvineduwofuxo.epizy.com/heads_features_and_faces_george_bridgman.pdfIn PDF document text
    • http://nupuzawov.onlinewebshop.net/polisacaridos_funcion.pdfIn PDF document text
    • https://s3.amazonaws.com/vuforewebub/obstructive_sleep_apnea_syndrome_treatment.pdfIn PDF document text
    • http://dowupozor.epizy.com/yale_mba_employment_report.pdfIn PDF document text
    • http://metoduzudo.rf.gd/adverb_phrase_examples.pdfIn PDF document text
    • http://pofulexurukuka.rf.gd/72619986447.pdfIn PDF document text
    • https://s3.amazonaws.com/sagotomagin/northern_drakensberg_weather_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/django_include_html_file_in_template.pdfIn PDF document text
    • https://s3.amazonaws.com/zupenafud/pirokuvitulomoserifuluw.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_off00010646.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10646 5244 bytes
SHA-256: 440133b950d6fc63fca5ca19f585ff9b1bc5d927dc4bdecc6f0588141bca97c2
font_01_sfnt_off00011803.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11803 11060 bytes
SHA-256: a825ee0c24b82262cb4d3cd21630a9d65d06e3e28706d30c3887912bdc61cfba

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