Malicious PDF — malware analysis report

Static analysis result for SHA-256 14847094336ce639…

MALICIOUS

PDF

66.3 KB Created: 2020-11-13 01:28:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-07
MD5: a5d04c570620579fbc22c38906a4dccf SHA-1: 099c02e54ed2a42fd3839bad9af055ba09d02136 SHA-256: 14847094336ce6395b34bd924076eea5325dd01221de476d38ac234e04598ecd
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that points to a suspicious domain, identified by heuristics as a potential phishing or malware distribution vector. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious content.

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/123?utm_term=asa+made+jugyou+chu+crunchyroll+sub+indo PDF link annotation
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/fbdf62c7-f7a5-46ad-9d67-9331eedea217/dujatebomavixixesuna.pdfIn PDF document text
    • https://s3.amazonaws.com/sitok/volusia_all_county_band_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/aa6ff62c-66e7-4a8d-8fee-e782aa035950/fozojerokuv.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/buddha_statue_for_garden.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/20577238362.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ee31f105-48a4-45c0-b635-4242bf7d822c/sakura_con_2020_events.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/16_person_tent_with_rooms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9812b32c-1df9-48dd-982b-8117b2fba2e1/50_english_conversation.pdfIn PDF document text
    • https://s3.amazonaws.com/nefomojuwet/genunun.pdfIn PDF document text
    • https://s3.amazonaws.com/jowutoneranemuk/carkeek_park_map.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ba5bf31-0012-44f2-a038-5f17918e299f/pokumo.pdfIn PDF document text
    • https://s3.amazonaws.com/wemazun/canvas_edmonds_15.pdfIn PDF document text
    • https://s3.amazonaws.com/sirilagewuga/bonalokiso.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_off0000c461.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC461 5660 bytes
SHA-256: 7d4ef6434a9dbeb6bac4b2cf854bb9643a9452c8eae49afa42f39e465f120d11
font_01_sfnt_off0000d780.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD780 10936 bytes
SHA-256: 05a6dc04c3844c2fe0957d75ec21b4ca2bb73d331a4953aa51a06f834e11d771