Malicious PDF — malware analysis report

Static analysis result for SHA-256 5dc9bdc60347629b…

MALICIOUS

PDF

78.0 KB Created: 2021-02-19 00:40:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-07
MD5: 9035baaf871ce501b85c78351bd0fbf3 SHA-1: 4852022f3c69f223fe407f3c9e16be6ba4e737bb SHA-256: 5dc9bdc60347629b5cdb2be0fea72a4120fbbebc11d2d4c49a18e1ae28e75b3e
154 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://yafferge.ru/strik?utm_term=baby+girl+christmas+dresses+9-12+months In PDF document text
    • https://cdn-cms.f-static.net/uploads/4391326/normal_602274965c9df.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465127/normal_5fee329a1f535.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446634/normal_6004c6f776d01.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408709/normal_600bf2eccdb9d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416792/normal_5fd21ca648d52.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454556/normal_5fc98c5cb023f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4495976/normal_5fe245b3038ec.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489852/normal_5fda2d3b902f4.pdfIn PDF document text
    • http://samoe-samaya.ru/did_you_hear_about_math_worksheet_answers_page_211nm8ij.pdfIn PDF document text
    • http://babysampler.com/performing_synonyms_wordpzjg0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4480732/normal_5fe87ddaed6b3.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://fezozebofafex.rf.gd/38489347685.pdfIn PDF document text
    • http://jaberorer.epizy.com/manual_de_riesgos_laborales_ecuador.pdfIn PDF document text
    • http://bisobowezite.rf.gd/makopijari.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e45c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE45C 5804 bytes
SHA-256: dda0e4917eb120831fc32bb04b37d78817d57207ec106dfa4c5f3e38ceb17c65
font_01_sfnt_off0000f7fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF7FE 10676 bytes
SHA-256: b5a0f78aaa8ffc37c8a456b87cd9f7a1fa532ddd0f2250f609206baa6ca46bb8
font_02_sfnt_off00011c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C82 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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