Malicious PDF — malware analysis report

Static analysis result for SHA-256 71e2c23c7bf12ee9…

MALICIOUS

PDF

73.2 KB Created: 2021-02-27 14:57:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 17bdd6f0b8b68485210d2179ccd38ce1 SHA-1: db1f653f79bb6f7534d98fa28962f22649b0c234 SHA-256: 71e2c23c7bf12ee937e29220e2b103b0f1a55c98f9c6c003b1b3da235cda8a38
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/wix?keyword=diamond+dragon+d%2526d PDF link annotation
    • http://palikexifumalam.mywebcommunity.org/fujulaferofakodavedizoka.pdfIn PDF document text
    • https://tamipabofoj.weebly.com/uploads/1/3/4/8/134876193/1143994.pdfIn PDF document text
    • http://mofopafilubo.22web.org/36040091458.pdfIn PDF document text
    • https://supenavasude.weebly.com/uploads/1/3/5/3/135397397/5677912.pdfIn PDF document text
    • http://fafizaso.iblogger.org/55735728045.pdfIn PDF document text
    • https://labomozojaxige.weebly.com/uploads/1/3/0/7/130738499/fd3eea5916a.pdfIn PDF document text
    • https://zemapefim.weebly.com/uploads/1/3/4/4/134485651/d674869e64d3.pdfIn PDF document text
    • https://gabejopow.weebly.com/uploads/1/3/4/5/134597712/suzafuzanosi-kirinoginise.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374366/normal_601b03bd6a8c3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4406482/normal_602925d01e53d.pdfIn PDF document text
    • https://kabigupux.weebly.com/uploads/1/3/4/4/134442156/4840819.pdfIn PDF document text
    • https://vivuwugo.weebly.com/uploads/1/3/0/9/130968913/farozunemawon_megek.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378170/normal_5fd26eb5cd14b.pdfIn PDF document text
    • https://rapovadok.weebly.com/uploads/1/3/4/7/134705404/4415229.pdfIn PDF document text
    • http://mklhhhh.space/9918163599811atf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4458161/normal_5fc847f8eaf78.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vimadetuvawese.rf.gd/zovuwadovaj.pdfIn PDF document text
    • http://lebekuwawelu.epizy.com/12887838012.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_off0000e451.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE451 4932 bytes
SHA-256: 7adcf9eb56142b2b048a2613ce3a0942207dfafee5fc62b75ecae1e42a432249
font_01_sfnt_off0000f502.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF502 10240 bytes
SHA-256: 7fe5af96e505a78dfdd94582a35a87693fffe32050653c9179bdb5d5a96e9e35

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