Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5be2096df13b05d…

MALICIOUS

PDF

75.3 KB Created: 2021-02-28 20:21:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2a33b312c014e82a3b57815541d7a655 SHA-1: bbbb16564f845014ffe893b321d9b8132ceb8e86 SHA-256: d5be2096df13b05dbf73498e46d571dab61829d526639d094c9bb1228a97f517
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jacksth.ru/wix?keyword=beat+your+boss+4+mod+apk PDF link annotation
    • http://stickerrus.ru/explanation_of_how_the_electronic_fuel_injection_workskm5y6.pdfIn PDF document text
    • https://fejoburu.weebly.com/uploads/1/3/0/8/130813906/borokotib.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4380695/normal_5fcf49bc0e4c8.pdfIn PDF document text
    • https://jazitilifa.weebly.com/uploads/1/3/1/4/131414561/fuvopimezeto.pdfIn PDF document text
    • http://helplnstagramoffice.com/midsummer_nights_dream_script_modern_englishxltni.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460975/normal_603781e82093a.pdfIn PDF document text
    • http://wiinorama.fun/ramapatimuvexirefimijoz5jjee.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383801/normal_600de3d9ab2bc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490725/normal_6035af1bbf6b3.pdfIn PDF document text
    • https://lelunoforonu.weebly.com/uploads/1/3/1/6/131606056/mukuputibuwexos.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4501804/normal_5fe3827df3d45.pdfIn PDF document text
    • https://sozazoje.weebly.com/uploads/1/3/1/1/131164180/mowabifuv.pdfIn PDF document text
    • http://circulshtangcalip.website/suraxihhdw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459170/normal_5fcb9aa6d6636.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4428334/normal_60351c1041c80.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/jewizopukuni/disbelief_papyrus_phase_2_theme.pdfIn PDF document text
    • https://s3.amazonaws.com/tedowafomaru/83304668429.pdfIn PDF document text
    • https://s3.amazonaws.com/jaloto/xupebenutu.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_off0000eab6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAB6 5516 bytes
SHA-256: 648cbced8649efd5bd7549d8eef7b5b0e3ac5cc0139d355bb53301820ab47d3e
font_01_sfnt_off0000fd6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD6F 10184 bytes
SHA-256: 804870b09d4fa899d53e863c32943b73dd9ed199148ade140265c6e79cbd9728