Malicious PDF — malware analysis report

Static analysis result for SHA-256 c58468f7ca3fde5d…

MALICIOUS

PDF

83.8 KB Created: 2021-05-02 08:10:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-24
MD5: df16ea393cdca659f7379131dad032e7 SHA-1: 5788b6446326500d7006e176d6e8002fe5fd98d4 SHA-256: c58468f7ca3fde5df498d4e7a7a519e5beb1c51848c8aea591031708261f8e78
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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/strik?utm_term=what+is+the+best+beginners+sewing+machine PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4425483/normal_60070ce122e65.pdfIn PDF document text
    • http://eeeeeyyy.space/xefisodasakkowsj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4391624/normal_604cc96cf1999.pdfIn PDF document text
    • http://allerlo.xyz/sivapuranam_in_tamil_audio_downloadt108k.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414868/normal_6041a0ac8a91d.pdfIn PDF document text
    • http://electorat.org/dixelifoflcc3r.pdfIn PDF document text
    • http://nezowigivomi.scienceontheweb.net/sumusojasiwaw.pdfIn PDF document text
    • http://help-copyrightservice.xyz/kaxoxa4qy1.pdfIn PDF document text
    • http://torchland.xyz/putonikubetas4lyl3.pdfIn PDF document text
    • http://nabavawuzafurur.mygamesonline.org/98761462631.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4450635/normal_5feb31e180afc.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/gogoxowiniza/javascript_string_concatenation_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/warapagefasovi/twilight_new_moon_free_movie_online.pdfIn PDF document text
    • http://mawidinivetobi.myartsonline.com/xugudenafojulezifejemunow.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/husky_1_gallon_silent_air_compressor_home_depot.pdfIn PDF document text
    • https://s3.amazonaws.com/fogibi/macleans_university_guide_2020.pdfIn PDF document text
    • https://s3.amazonaws.com/mipeboro/ximafokuxej.pdfIn PDF document text
    • http://magegefopo.atwebpages.com/57890617568.pdfIn PDF document text
    • http://kuxoxokazutuv.myartsonline.com/mezovizowikaguje.pdfIn PDF document text
    • https://s3.amazonaws.com/gozifep/1442432458.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxuledo/xevadumofefuxopuritizelu.pdfIn PDF document text
    • https://s3.amazonaws.com/kakekojezutok/qualified_dividends_capital_gains_worksheet_2018.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_off00010958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10958 5424 bytes
SHA-256: 609da5a662e89e87d7dae89eaa98a906426db0b652225419f0f86f60153d8b8c
font_01_sfnt_off00011bbc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11BBC 10744 bytes
SHA-256: 300f21fdde0dd1d4bf677665cdace1b9816e62d39f5a3b06c19920081da18cba

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