Malicious PDF — malware analysis report

Static analysis result for SHA-256 94f3fc051492aa17…

MALICIOUS

PDF

79.6 KB Created: 2021-05-04 03:41:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 993573aad1a52cc7006deb79a7829ca7 SHA-1: 94321e5f873ca7f39e02067534f7e883365495c0 SHA-256: 94f3fc051492aa1755747be1da4ca4b0499b1bd53e9fb4df6936ec2e6aeab47d
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 0.9998

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://lozipotod.ru/strik?utm_term=michel+foucault%2527s+theory+of+panoptic+power PDF link annotation
    • http://bit7.top/what_games_were_in_the_ancient_greek_olympicskb7uy.pdfIn PDF document text
    • http://afracheat2.xyz/retoxewukarugurkz8u.pdfIn PDF document text
    • http://reduslim-buy.site/39035223657xwgzi.pdfIn PDF document text
    • https://cdn.sqhk.co/sumavevop/gheie12/nes_emulator_roms_apk.pdfIn PDF document text
    • http://senteber.site/46935236735ki5f3.pdfIn PDF document text
    • https://cdn.sqhk.co/gixotagokezu/NzigWg8/21167743898.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0e4e50f-df04-4edb-851b-56f9b9d0c381/47382410704.pdfIn PDF document text
    • https://s3.amazonaws.com/xafaxotaful/mediasonic_probox_hf2-su3s2_review.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c49c0e6a-5459-4608-b9f0-7e93fb8f25ce/73305652381.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/559764bf-8a3d-404b-a4c8-1b6f4d22b80a/54748803394.pdfIn PDF document text
    • https://s3.amazonaws.com/voxulija/what_is_the_contribution_of_renaissance_period_in_the_field_of_music.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b22663e6-42b1-47f7-b511-b36ef1671109/41841928694.pdfIn PDF document text
    • https://s3.amazonaws.com/zumomasugipeno/lawonisakesozu.pdfIn PDF document text
    • https://s3.amazonaws.com/jupoti/how_social_justice_help_to_fight_crime.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/price_of_epix.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2b8953d3-f602-4e5f-9ba1-5c2982eb325f/90746687500.pdfIn PDF document text
    • https://s3.amazonaws.com/zuwosil/zifukofele.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/47d22776-329a-48e0-ad87-4fe61da2a4a9/33516133294.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_off0000fa4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFA4F 5336 bytes
SHA-256: fe2f885741bcaf6ba45545a85b4633573d0a9dfc0cc1285d9eb22b339ecdd899
font_01_sfnt_off00010ca0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CA0 10776 bytes
SHA-256: 6f7a2e97869a6b660c20148242bf9a5bd15295b83a4d9dd74f9b17b28122c365

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