Malicious PDF — malware analysis report

Static analysis result for SHA-256 c73f6b6e02c60fd2…

MALICIOUS

PDF

69.4 KB Created: 2021-02-14 00:49:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 93ca562f942015bfbb4ceca05d267717 SHA-1: 9bfdb21eb09a354767a74d083ea1c1bc79a19f98 SHA-256: c73f6b6e02c60fd2604ab7168f9338d26d326cd85d4171300f8ddea090ad6600
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://maypoin.ru/wix?keyword=video+converter+apk+uptodown PDF link annotation
    • https://zilakakazaxo.weebly.com/uploads/1/3/4/4/134442972/sowapuxefusozutebo.pdfIn PDF document text
    • https://begiruxuvasepi.weebly.com/uploads/1/3/5/3/135351124/zebageniruzitutabaku.pdfIn PDF document text
    • https://sojabejob.weebly.com/uploads/1/3/4/8/134890412/4675649.pdfIn PDF document text
    • http://onlineeshop24.xyz/pubukepizvjln0.pdfIn PDF document text
    • https://tuzisufuga.weebly.com/uploads/1/3/4/4/134458332/1a10c9.pdfIn PDF document text
    • https://nipituwosaxow.weebly.com/uploads/1/3/5/3/135312928/1426654.pdfIn PDF document text
    • https://sinosopad.weebly.com/uploads/1/3/4/8/134892142/2553363.pdfIn PDF document text
    • https://vokarojunez.weebly.com/uploads/1/3/2/6/132696330/borutijopepofazovuw.pdfIn PDF document text
    • https://cdn.sqhk.co/fedelubu/wlhhY2K/82441842439.pdfIn PDF document text
    • http://abwaab.su/knights_fight_medieval_arena55996.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/falevi/analysis_essay_example.pdfIn PDF document text
    • http://xokudofek.epizy.com/indices_revision_worksheet.pdfIn PDF document text
    • http://lojurixerura.epizy.com/cognitive_behavioral_therapy_for_schizophrenia.pdfIn PDF document text
    • https://s3.amazonaws.com/zesixefe/tapejure.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/utorrent_slow_speed_fix.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/agust_d_suga.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_off0000d305.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD305 5040 bytes
SHA-256: 5381320e77046bce05c3ec131f7b02e59f963a43a8b0e32badf7e790875b0298
font_01_sfnt_off0000e452.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE452 10580 bytes
SHA-256: 8fb011a6c89a52c61c5b9e0fa33087ac32529e3c0b50af92bfa441751070b66e