Malicious PDF — malware analysis report

Static analysis result for SHA-256 c453c10afc274e50…

MALICIOUS

PDF

80.4 KB Created: 2021-03-28 01:47:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3ce3c37fc98ff30b909e80245d274ad8 SHA-1: 70314f8d528a031d78022154adaf802317c865d4 SHA-256: c453c10afc274e50752185caee6366c03730aa400c7add6698d01d14aaae1ab2
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://nipisod.ru/strik?utm_term=2005+nissan+murano+sl+sport+utility+4d+reviews PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4495846/normal_60021450a4be9.pdfIn PDF document text
    • https://kisetizep.weebly.com/uploads/1/3/5/9/135992433/a319723f.pdfIn PDF document text
    • https://xatikofaf.weebly.com/uploads/1/3/0/8/130814669/8963783.pdfIn PDF document text
    • https://cdn.sqhk.co/lojibuwe/a6tkhie/89377015193.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499319/normal_6009ff1bbe779.pdfIn PDF document text
    • https://cdn.sqhk.co/dedogupazib/NuiiKZc/bunilogonere.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460963/normal_601e06a700c8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420930/normal_604dac728d079.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4528780/normal_5ffc4945e356f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379371/normal_605ba0098a8eb.pdfIn PDF document text
    • https://mitenipup.weebly.com/uploads/1/3/4/3/134363071/6594241.pdfIn PDF document text
    • https://cdn.sqhk.co/zasokolof/bKifVjg/hero_hunters_extreme_1-_8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410717/normal_602a2ebb7a7e6.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/831b8e41-bb03-4aaa-85ac-f27312ad3c3d/75761194061.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8f680a1c-0ca3-4d66-ae0c-ecd48fcf9a86/what_does_maxcare_cover.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/e8adc787-d98b-4270-8c52-2de39c7a2000/39034394516.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f0c13a1b-1b3e-43b8-89fb-ec79807df08d/memento_database_desktop_lite.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6e74ce93-209f-4cdf-8eff-e36e86ce90b0/45736580139.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/805fc413-1752-42a6-85d7-658251d03a43/the_chronicles_of_narnia_the_lion_the_witch_and_the_wardrobe_soundtrack_youtube.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/af0d65cd-7ee3-4fb5-a287-06e64b741d7f/can_you_refill_epson_200_ink_cartridges.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_off0000fb70.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFB70 5748 bytes
SHA-256: cc9fcf8ee6540f0e63da86d5f68b3fb9c088ead229a04b2f968108251614eb51
font_01_sfnt_off00010f0b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F0B 10876 bytes
SHA-256: 278f7910c87a71d2ac404b8462a832db96cd8a09316675b48fbce6a9ec0300b4

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