Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c2f83ed67bfdd7b…

MALICIOUS

PDF

74.5 KB Created: 2021-04-20 05:16:23 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: f0a36da79bf324afba9c3f01cea13e36 SHA-1: 5474dd389f5bc754375fe6783971d5e347ec47e9 SHA-256: 1c2f83ed67bfdd7b8861da1fc6ad81f9d2c0746d32f91a9d0eef8bc7071d6ad8
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://vilenefex.ru/strik?utm_term=the+angelus+prayer+printable PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4444377/normal_603a3dcc27cd1.pdfIn PDF document text
    • https://cdn.sqhk.co/nibubovixif/jagcjdW/new_alphabet_song_lyrics_2020.pdfIn PDF document text
    • http://mobufuwiwid.medianewsonline.com/zoxag.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408976/normal_6054d9a3a4181.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490252/normal_5fce14d597689.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481157/normal_6031de1e7620b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409405/normal_6050e2110836a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386837/normal_5fe47f2b84bf2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471682/normal_60146b697c13f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4498994/normal_5ffa2ee103c58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447108/normal_60639c0075d11.pdfIn PDF document text
    • http://ratixopawem.mypressonline.com/cancer_espinocelular.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405420/normal_5fd368de7e2ab.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412394/normal_604ddc5208654.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530712/normal_5fc6dc2230a51.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366364/normal_6002672eecd6b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478146/normal_600f3ee7b9236.pdfIn PDF document text
    • http://bulubuzigajuzar.getenjoyment.net/star_wars_blueprint_posters.pdfIn PDF document text
    • http://kejurudoji.medianewsonline.com/zoxalunekotizawonusorow.pdfIn PDF document text
    • https://cdn.sqhk.co/zanewijepex/gehihXt/juxileboxerazebisi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e705.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE705 5272 bytes
SHA-256: 1874fff6cda655c46af0dfb614278d54afd1813386d0488920bb4bdfcdb94720
font_01_sfnt_off0000f8f4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8F4 10576 bytes
SHA-256: de5e2f19767d37a87bdf38e05c7a51215004cc942b92251f717dc7b384d31f86

Open this report in the interactive analyzer, or submit your own file for analysis.