Malicious PDF — malware analysis report

Static analysis result for SHA-256 2397be378b74055d…

MALICIOUS

PDF

47.5 KB Created: 2020-11-09 07:47:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2022-06-20
MD5: b707d5b201bbfa0b82fb66bc8e10fcdc SHA-1: 7ce2f6be3154b7751ff09f9b176e5e593298db61 SHA-256: 2397be378b74055d7091569b84ca0f0508ba35817c8019a9f01a88d4e739200e
132 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://traffking.ru/aws?keyword=watch+black+butler+for+free In PDF document text
    • https://netaluzubik.weebly.com/uploads/1/3/0/8/130813777/weguki.pdfIn PDF document text
    • https://bobugebajagon.weebly.com/uploads/1/3/4/6/134682349/7998671.pdfIn PDF document text
    • https://rukinedofixod.weebly.com/uploads/1/3/4/3/134348838/legopapabigiji-koxize-polaputowabo.pdfIn PDF document text
    • https://midizovusataleb.weebly.com/uploads/1/3/4/6/134618082/fa9366b9cf4d68.pdfIn PDF document text
    • https://xanugobolenaz.weebly.com/uploads/1/3/4/3/134371028/afbe64b08ad274c.pdfIn PDF document text
    • https://tusejefil.weebly.com/uploads/1/3/4/3/134320171/waxiwurubofo.pdfIn PDF document text
    • https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/3680098.pdfIn PDF document text
    • https://suzoniku.weebly.com/uploads/1/3/4/4/134456843/kipitezoleba_siwelije_lidibesuvix_donek.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/xotomisen/kotulopalifavonones.pdfIn PDF document text
    • https://s3.amazonaws.com/baxegezivumi/wmu_bus_schedule_parkview.pdfIn PDF document text
    • https://s3.amazonaws.com/degagaziv/lotro_leveling_guide_16.pdfIn PDF document text
    • https://s3.amazonaws.com/fikuvine/83276141165.pdfIn PDF document text
    • https://s3.amazonaws.com/jivuxo/anti_corruption_act_in_gujarati.pdfIn PDF document text
    • https://s3.amazonaws.com/vipinib/the_goophered_grapevine_dialect.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007b51.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B51 5008 bytes
SHA-256: a7cd163ad259d105e2f46e0dd31844946238c9eb917d205b883a4193443be64b
font_01_sfnt_off00008c69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C69 10764 bytes
SHA-256: b2c4456cc96444c8dc65776da24a3e31c78df1499e6920edde46877d69277113