Malicious PDF — malware analysis report

Static analysis result for SHA-256 d4d6353267ace746…

MALICIOUS

PDF

75.2 KB Created: 2021-01-19 21:20:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 52abcbf6bfdaf394d3e31fa6a4e875b1 SHA-1: 37dd80be3db4897b8f46435a76e7a5ed5e71e4da SHA-256: d4d6353267ace746b9de5fc9ad0807211454b4c4c23bb5a78fe5f5e0b02d0309
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://leonvi.ru/wb?keyword=marshall%20football%20schedule%202019 PDF link annotation
    • https://jasugigikimodo.weebly.com/uploads/1/3/1/3/131383258/xoluxitigef.pdfIn PDF document text
    • https://cdn.sqhk.co/tefupudoma/Ahhiahh/menuvirasekupegewamasotun.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455396/normal_5fc7e2a2b1f46.pdfIn PDF document text
    • https://tabupuja.weebly.com/uploads/1/3/4/6/134647436/fefikag.pdfIn PDF document text
    • https://cdn.sqhk.co/modebopogut/hfjaMic/36309316263.pdfIn PDF document text
    • https://jovawovifo.weebly.com/uploads/1/3/4/8/134883275/tisebu-bufur-jajidasajos.pdfIn PDF document text
    • https://cdn.sqhk.co/felodunom/hcOstFB/smartthings_hub_v3.pdfIn PDF document text
    • https://cdn.sqhk.co/belexewuwif/ligSohe/smashy_brick_mod_apk.pdfIn PDF document text
    • https://pezibife.weebly.com/uploads/1/3/4/3/134376528/giruxifu_mitubafikaw_jukinikani.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366645/normal_5fb9b38fa282e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387411/normal_5fc082fb4e404.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403283/normal_5ffa423702748.pdfIn PDF document text
    • https://cdn.sqhk.co/kikolibub/ihpihih/38093959376.pdfIn PDF document text
    • https://cdn.sqhk.co/sojowidaz/Fgicib0/56565123308.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/godewumazek/lagu_timur_tragedi_power_metal.pdfIn PDF document text
    • https://s3.amazonaws.com/fobupojowojon/advantages_of_formative_assessment_in_education.pdfIn PDF document text
    • https://s3.amazonaws.com/jadere/modern_baybayin_keyboard_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/klasifikasi_tanaman_binahong.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_off0000e513.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE513 5736 bytes
SHA-256: 39432f72ee23d09a52adbe84ab140380af920990302fb6dd2c9f80c48b9b6e8a
font_01_sfnt_off0000f898.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF898 11884 bytes
SHA-256: 3e0773085a1e70a93d34698fd78d90860d9de2441f72bd5c38fb840e22f958cf