Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c901f291fecfc61…

MALICIOUS

PDF

64.2 KB Created: 2020-11-11 21:45:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-02
MD5: aa5f8245d6c586af3db98ae6100e39f3 SHA-1: dd800b00a06633292f5dc8f6d912de030b638a11 SHA-256: 8c901f291fecfc6141bc896926df932c198f8f9d35fdf346f86f9e35b812609a
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-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://trafftec.ru/strik?utm_term=divinity+original+sin+2+brennende+sc PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4382418/normal_5f972f1278aa9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453551/normal_5faa66922e87a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366003/normal_5f870b2d5a57d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370073/normal_5f9da71e459d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478148/normal_5fa5e3876e400.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367017/normal_5f882d3689a85.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/vitelitubovuluj/biology_gcse_questions.pdfIn PDF document text
    • https://s3.amazonaws.com/tezofuretejom/namisejejivured.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/deware.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/20756118981.pdfIn PDF document text
    • https://s3.amazonaws.com/lukepepe/the_worlds_easiest_game_unblocked.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e92089a7-63d7-4dd0-b7d6-cc3fa42b55c4/cry_baby_cry_lyrics_chords.pdfIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/harrah_s_philadelphia_poker.pdfIn PDF document text
    • https://s3.amazonaws.com/rovikibixu/rujarokobabagi.pdfIn PDF document text
    • https://s3.amazonaws.com/gifiz/treasure_hunter_guide_l2.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/5144911665.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e5022160-41f6-4b49-8aa2-87a81d43cac8/27442968224.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_off0000be9e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE9E 5540 bytes
SHA-256: 540d0794480ef17724be98de65973dee946366aeb7db78629999874bb66f6bfc
font_01_sfnt_off0000d194.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD194 10064 bytes
SHA-256: 62fdc2ed67f6ed75e5225fd91437b4c4457ebfb144d9bac2427175493b69984d

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