Malicious PDF — malware analysis report

Static analysis result for SHA-256 2563626be74fb2ca…

MALICIOUS

PDF

67.9 KB Created: 2021-02-19 00:03:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: f28f62d0643f2f4c1b54db30fcfea784 SHA-1: ca6f2969068c29bc5e0a1daa511526ce15adbff6 SHA-256: 2563626be74fb2caef9110392630b782d5d3ec2782be0b52ccb92b6b57f37f33
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://jottigo.ru/wix?keyword=analyzing+functions+worksheet+answers PDF link annotation
    • https://volinamonapefez.weebly.com/uploads/1/3/4/4/134494747/tenovun.pdfIn PDF document text
    • https://fijapirugonobi.weebly.com/uploads/1/3/4/3/134315317/2486383.pdfIn PDF document text
    • https://rinadulig.weebly.com/uploads/1/3/0/7/130739308/larope.pdfIn PDF document text
    • https://misamizejip.weebly.com/uploads/1/3/4/3/134348089/79e93d5d71d.pdfIn PDF document text
    • https://selemuja.weebly.com/uploads/1/3/4/8/134893326/d5d34a4ea6c8c.pdfIn PDF document text
    • http://kieverts.xyz/rivasav0ue4.pdfIn PDF document text
    • https://ramemegu.weebly.com/uploads/1/3/1/3/131383760/dopatinupakitilozan.pdfIn PDF document text
    • http://somuvopavu.iblogger.org/28001445216.pdfIn PDF document text
    • https://jazediwugitali.weebly.com/uploads/1/3/4/7/134730671/fd255607ac6f15d.pdfIn PDF document text
    • http://korsabarca.com/badinerie_flute_and_piano_sheet_music4suw8.pdfIn PDF document text
    • https://zorajifedimak.weebly.com/uploads/1/3/1/4/131437130/3945504.pdfIn PDF document text
    • http://zupedaganivo.66ghz.com/17821649906.pdfIn PDF document text
    • https://nolulanulupu.weebly.com/uploads/1/3/1/3/131379612/vebejon.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xadamun.epizy.com/adobe_illustrator_cc_32_bit.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/uss_exam_answer_key_2019_pareeksha_bhavan.pdfIn PDF document text
    • https://s3.amazonaws.com/jarirotexab/lobachevsky_sheet_music.pdfIn PDF document text
    • http://kirigawegugava.epizy.com/global_africa_art_market_report.pdfIn PDF document text
    • https://s3.amazonaws.com/liluvad/sajakekujolubetip.pdfIn PDF document text
    • https://s3.amazonaws.com/fuwawibu/innate_abilities_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/nezanurugega/nuvomuwoxipowisu.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/applicant_guide_dietetic_internships.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_off0000ccd3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCD3 5440 bytes
SHA-256: 8eabaab2ca594b8f1dd668d0c99f4ec9f1fbc1b2bf772c4d42de080e1a4e0743
font_01_sfnt_off0000df7b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7B 10220 bytes
SHA-256: ab020fa2cf2904b7ed9112e9306ecf8ef81186b2670e93dac81ac11485821113

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