Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3f965691cbb7f04…

MALICIOUS

PDF

69.9 KB Created: 2021-02-12 18:15:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-17
MD5: bf6b0fc1314f0bb1fdbbe784639121c9 SHA-1: 7f5ded41e97f65f612317920eef66376076cbbd9 SHA-256: b3f965691cbb7f04b046ab2db44971858b61a4a6e0e26d8811dde54f967f5692
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. 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 trick users into visiting a malicious site, potentially leading to further compromise.

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://crophysi.ru/123?utm_term=how+to+clean+george+foreman+ceramic+grill+plates PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381085/normal_5fc9c9c71de18.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418185/normal_5fc8635526f9a.pdfIn PDF document text
    • http://blog-uniswap.org/arduino_servo_datasheetjp8f6.pdfIn PDF document text
    • http://tovelksa.website/after_effect_cs6_portableyi2z9.pdfIn PDF document text
    • http://umkatrade.ru/so_too_either_neither_exercises61ytu.pdfIn PDF document text
    • http://rubka.space/champagne_bottle_cake_template6xd0e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408719/normal_6025ff006f7d4.pdfIn PDF document text
    • http://remont-kholodilnikov.website/zilezodo2lt7c.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/kujapomib/duvono.pdfIn PDF document text
    • https://s3.amazonaws.com/tutasujal/xomigunapivenen.pdfIn PDF document text
    • https://s3.amazonaws.com/lemerisinivum/xupizogoliva.pdfIn PDF document text
    • https://s3.amazonaws.com/farokof/complete_food_chain_worksheet.pdfIn PDF document text
    • https://s3.amazonaws.com/bopuxosavubare/black_white_flower_pattern.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/tosuwefazojewapakano.pdfIn PDF document text
    • https://s3.amazonaws.com/potamotaz/pulwama_attack_cctv_footage.pdfIn PDF document text
    • https://s3.amazonaws.com/tujeviwakirawu/51042591942.pdfIn PDF document text
    • https://s3.amazonaws.com/juzewojavomofew/authentication_problem_android_wifi_sony_xperia.pdfIn PDF document text
    • https://s3.amazonaws.com/wazorixekunafob/impossible_quiz_2_answers_12.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_off0000d4ce.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4CE 5388 bytes
SHA-256: 59a89525699e49622a7a63ef1bc8e9ede5f350fa6796d12fb3344614b40bef07
font_01_sfnt_off0000e729.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE729 10200 bytes
SHA-256: 56d6e00253bcea28c69a0642441fb84928d6d57ad1d0bd7b1eb7422fcf770fe5

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