Malicious PDF — malware analysis report

Static analysis result for SHA-256 066bc05083e03120…

MALICIOUS

PDF

69.2 KB Created: 2021-02-14 22:40:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f2878dfb9f474611b64e19eea42c616a SHA-1: f664cf8d0435b7ab46ba20de056e588222f8dc59 SHA-256: 066bc05083e031201f6e36f55598f9bd805ee0c1ebfd698087506af5f0f14a4f
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://druttle.ru/wix?keyword=calculating+electrostatic+force+worksheet PDF link annotation
    • http://antonioit.fun/86574037137jmja2.pdfIn PDF document text
    • https://tevoletefe.weebly.com/uploads/1/3/1/6/131606261/62e56d4.pdfIn PDF document text
    • http://repair-kompov.ru/froggers_grill_bar_mt_dora_flhfxj2.pdfIn PDF document text
    • http://ninufejuvosixir.22web.org/4liker_apk_new_2018.pdfIn PDF document text
    • http://vinnipoh.fun/kotovuz6ylj.pdfIn PDF document text
    • http://hotloveme.online/6261621983uoioc.pdfIn PDF document text
    • https://rosowimibezot.weebly.com/uploads/1/3/5/3/135392622/tenepepomoguwuvi.pdfIn PDF document text
    • https://fifekususelamib.weebly.com/uploads/1/3/5/3/135349053/mojozeluloxo.pdfIn PDF document text
    • http://metalllift.ru/zeboxajijefolirotupe5nusg.pdfIn PDF document text
    • https://tabogivazosepa.weebly.com/uploads/1/3/1/8/131871767/ruzilig.pdfIn PDF document text
    • http://sofoviwov.iblogger.org/difodufizuturowetugogat.pdfIn PDF document text
    • http://endi-itali.space/32575161570gpnci.pdfIn PDF document text
    • http://fresh-ita.space/icas_2011_maths_paper_e_answersytyzn.pdfIn PDF document text
    • https://gixakipero.weebly.com/uploads/1/3/1/4/131412713/fukuraxabarogusine.pdfIn PDF document text
    • http://jitokinut.iblogger.org/seismic_data_interpretation.pdfIn PDF document text
    • https://babinekisifuve.weebly.com/uploads/1/3/2/6/132696104/6885099.pdfIn PDF document text
    • http://sungo1.space/27032755385pcooo.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://wuvuwipiwizovid.epizy.com/selemen.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000d56e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD56E 10536 bytes
SHA-256: d17c70cd9d93800999cab82c8a5513991dd5d516b21bf601b839dfabd052d5f5
font_00_sfnt_off0000c3ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC3AE 5204 bytes
SHA-256: 0b4239d514b55c5d551ed3be58347f555b3481c366af2bcaab2b2bf6435da6d9
font_02_sfnt_off0000f94b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF94B 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71