Malicious PDF — malware analysis report

Static analysis result for SHA-256 acc3368f0204dabc…

MALICIOUS

PDF

65.1 KB Created: 2021-02-27 13:41:12 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6f5fca5f44c19e59cb01eec1b8fb81e3 SHA-1: 960938565e69cad8e570cc85e8b6ff80b3f637c9 SHA-256: acc3368f0204dabccc7ad22c89e48c2c5f391932bec271be1024112bd3c24dc5
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://midufefew.ru/wix?keyword=parallel+structure+exercise+1+grammar+bytes+answers PDF link annotation
    • http://trixy-matrix.space/24604312230pz4dm.pdfIn PDF document text
    • http://wtia.space/bufomemy1vbn.pdfIn PDF document text
    • http://povulofi.mywebcommunity.org/pack_n_play_mattress_walmart.pdfIn PDF document text
    • https://wezogefizu.weebly.com/uploads/1/3/4/2/134234847/1b61aa9.pdfIn PDF document text
    • http://epipog.com/50793332222xr0bs.pdfIn PDF document text
    • http://ruguwafe.scienceontheweb.net/43444150781.pdfIn PDF document text
    • https://kotutoxegaru.weebly.com/uploads/1/3/2/6/132695780/bixutamizo.pdfIn PDF document text
    • https://nezivubu.weebly.com/uploads/1/3/1/3/131384481/9f5ff9922813724.pdfIn PDF document text
    • http://ledozikatiresev.scienceontheweb.net/microsoft_visual_basic_.net_programmers_cookbook_.pdf.pdfIn PDF document text
    • https://cdn.sqhk.co/xekemini/dgiLhdJ/46889745251.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zogadawedalifap.onlinewebshop.net/leica_m6__m7.pdfIn PDF document text
    • http://zikoliduxa.atwebpages.com/jazemozus.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/merriam-_webster_s_elementary_dictionary.pdfIn PDF document text
    • http://rujidafedisezu.atwebpages.com/42772735322.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_off0000c2be.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2BE 5576 bytes
SHA-256: b5334bfb8021abd4fd19b73bc35bc1dcf3d4b2a1ef34f50ceee2af2305a824d4
font_01_sfnt_off0000d5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5BC 9840 bytes
SHA-256: 9e6bcf1bfe7d91d9c3b33fc274107b08b50fd1124f9160bd17bbfe666eabf88c