Malicious PDF — malware analysis report

Static analysis result for SHA-256 af3c974dd50541c6…

MALICIOUS

PDF

75.5 KB Created: 2021-03-16 18:32:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 537bc0b64038507dea378c90f056ffaf SHA-1: b05028ae446d6ddb368d1e3d1f49bc4b5e4e528a SHA-256: af3c974dd50541c6c2b26304b7a6863ad3e4b985641a0429b0fed71000d72028
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-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://fokemale.ru/strik?utm_term=what+oil+filter+does+a+2006+chevy+malibu+take PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4392472/normal_6043466b505f7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375194/normal_5fd94110480c0.pdfIn PDF document text
    • http://kobivoweder.mypressonline.com/naeyc_standards_2020.pdfIn PDF document text
    • http://nadipewin.mywebcommunity.org/87476710279.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487626/normal_60391b10cea93.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420599/normal_5ff757de9e955.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/babetafaperaxov/40285773577.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/74679eb2-08ad-486f-a0d2-4a56af5b42bc/casio_2747_aw_80_set_time.pdfIn PDF document text
    • https://s3.amazonaws.com/xupimaral/audible_stuck_on_queued.pdfIn PDF document text
    • https://s3.amazonaws.com/buganabowumujef/75422926955.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a95b559b-8a1b-4923-9fbd-081dfc2e24c2/que_significa_que_tu_mama_se_muere.pdfIn PDF document text
    • https://s3.amazonaws.com/bewibiwat/76217145510.pdfIn PDF document text
    • http://ranoponadugat.epizy.com/cholesterol_diet_sheet_bda.pdfIn PDF document text
    • https://s3.amazonaws.com/xubifupi/58684191207.pdfIn PDF document text
    • https://s3.amazonaws.com/temujonuwu/meduxonuduwa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e2adddcd-0bde-4f6e-86f1-2ca4ed56c0f3/nuxolamovosi.pdfIn PDF document text
    • https://s3.amazonaws.com/niporofez/wozixulafan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5bcf88f0-2983-431a-b2be-add257c54dc7/lobopumibir.pdfIn PDF document text
    • https://s3.amazonaws.com/remeranexe/vidmate_video_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/jinabom/watch_lathe_of_heaven_2002_online_free.pdfIn PDF document text
    • http://walexesanub.rf.gd/nevijoligole.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e80f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE80F 6068 bytes
SHA-256: cb85a9ae956b22d9527a6abc761dea14bf922d47b2307edb9f10bfd38c6de5f4
font_01_sfnt_off0000fca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA0 10552 bytes
SHA-256: 5628a6ed15f35bc4f9fc70970104b725a959aa8e239a49c3488a0680c1be50ac

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