Malicious PDF — malware analysis report

Static analysis result for SHA-256 715987199283e49c…

MALICIOUS

PDF

84.6 KB Created: 2021-01-19 07:05:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a9fa197a9e8ad157651b2ee50f8a4ab8 SHA-1: c204d9ae378cbe17c20ed6038fb88736abd7e1b2 SHA-256: 715987199283e49cacf1d97382c0dd267f29c639edbaf69c5930a0106a12c97c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains an embedded link identified as a malicious redirector, which is a common tactic for phishing or delivering secondary payloads. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were directly extracted, the presence of a malicious URL and the PDF structure suggest an attempt to exploit user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/123?utm_term=parts+of+a+camera+lens In PDF document text
    • https://cdn.sqhk.co/goworonol/gjIjhqo/star_forces_space_shooter_mod_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/rijatazuga/fPhjihG/what_time_does_nascar_race_tomorrow.pdfIn PDF document text
    • https://cdn.sqhk.co/kufalavoxig/igepVii/lelaferedidi.pdfIn PDF document text
    • https://cdn.sqhk.co/goluxewimabu/engehhd/podevur.pdfIn PDF document text
    • https://cdn.sqhk.co/vusanutoj/jjklJgF/group_join_link_for_whatsapp_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/jg1gioA/rayman_jungle_run_play_online.pdfIn PDF document text
    • https://cdn.sqhk.co/musutalivun/ajihiji/pibosovixigu.pdfIn PDF document text
    • https://cdn.sqhk.co/togokitaz/8yOUIoW/42699953594.pdfIn PDF document text
    • https://cdn.sqhk.co/vupapevixu/Zcghoge/catan_pieces_3d_printer.pdfIn PDF document text
    • https://cdn.sqhk.co/wuvotalek/jhB4hdF/free_printable_map_of_uk_cities.pdfIn PDF document text
    • https://cdn.sqhk.co/vijasezadida/hgiKido/fall_gang_knockout_descargar.pdfIn PDF document text
    • https://cdn.sqhk.co/bovokolel/N7D1Oij/bombay_hair_curler.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/timeziso/nufifokowamanunati.pdfIn PDF document text
    • https://s3.amazonaws.com/dazemi/gloomhaven_scenario_book.pdfIn PDF document text
    • https://s3.amazonaws.com/davolazupivowi/votezimovinoz.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_off00010e0d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E0D 5028 bytes
SHA-256: 746fa049bbc61b3db53022b67d3dd0c3bfe786e912ee5e2e335122afd7da91a8
font_01_sfnt_off00011f12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F12 11196 bytes
SHA-256: a7725727c6c473e698cefb0b2554f83440e8e7ac77a20b9aee697333f209780a

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