Malicious PDF — malware analysis report

Static analysis result for SHA-256 201d70a44e7869e7…

MALICIOUS

PDF

72.3 KB Created: 2021-02-20 22:03:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2383bf1009a6aba2581670135034d3d9 SHA-1: 0ec60c28d0d8fd2ffe87e516ee40449e9cff06d1 SHA-256: 201d70a44e7869e719a6a1c912429169e93e12da37e30c86a28e917e2ea95149
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=ay+family+words+worksheet PDF link annotation
    • http://wikuseweluwi.iblogger.org/jixopaja.pdfIn PDF document text
    • https://sezulozag.weebly.com/uploads/1/3/0/9/130969806/8f1f5a130.pdfIn PDF document text
    • https://vajasefa.weebly.com/uploads/1/3/4/4/134490273/xoriso_vimifav_ramog_tejezepola.pdfIn PDF document text
    • https://cdn.sqhk.co/gebemiwisero/fjdTnjd/emergency_meeting_meme_imgflip.pdfIn PDF document text
    • https://nofefikow.weebly.com/uploads/1/3/4/5/134510094/senekoxerowepob.pdfIn PDF document text
    • https://wufodiwefoveve.weebly.com/uploads/1/3/4/8/134891768/618300.pdfIn PDF document text
    • https://kufojinelimipi.weebly.com/uploads/1/3/0/7/130776518/7260498.pdfIn PDF document text
    • http://pafiwuz.66ghz.com/nike_socks_fitting_guide.pdfIn PDF document text
    • http://tirudibemaj.22web.org/inglourious_basterds_720p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://kenuzuwemonuda.epizy.com/cdata_xml_formatter.pdfIn PDF document text
    • http://keputeka.epizy.com/rexefefen.pdfIn PDF document text
    • https://s3.amazonaws.com/tobito/instruction_guide_citizenship_canada_minor.pdfIn PDF document text
    • http://fububosuvakosal.epizy.com/cat_s_eye_by_margaret_atwood.pdfIn PDF document text
    • https://s3.amazonaws.com/wizidimawag/27495924.pdfIn PDF document text
    • https://s3.amazonaws.com/gazijewevan/winky_d_album.pdfIn PDF document text
    • http://girupesoja.rf.gd/cambridge_ket_exam_sample.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000bdfa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBDFA 5076 bytes
SHA-256: 00ad71d89ebc29cda0c9d25f69ceb8c0d46b90d04eae58c2bf3cebcf704d6f4f
font_01_sfnt_off0000cf55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCF55 9652 bytes
SHA-256: c791f0a8226301c4ad8ecc08b6cd846756d82c148cd5ef41aee36ecb55c0f668
font_02_sfnt_off0000f08a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF08A 16312 bytes
SHA-256: b2563e85233037e3c2780690ed1455257f868516b5a962e54e6ffe29314c9cb1
font_03_sfnt_off00010615.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10615 4324 bytes
SHA-256: ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230

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