Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a014a1aa025c900…

MALICIOUS

PDF

75.4 KB Created: 2021-02-15 21:54:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-19
MD5: 15cd4c5fd5f9a4082c725d502e96c138 SHA-1: 2636dcd41c64a7853164550eb3fa448214c89340 SHA-256: 2a014a1aa025c9002ac58a245ab8786d87b43903f7165ba31cd5182bab827b19
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://baarspo.ru/wix?keyword=apps+like+showbox+apk+cnet PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4379618/normal_600dd952c25b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4463306/normal_5fe8dac56c65b.pdfIn PDF document text
    • https://cdn.sqhk.co/mofijovelu/4qihP5Z/68836917190.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487005/normal_6000a0508d017.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369503/normal_5ff267d186e9a.pdfIn PDF document text
    • https://kowedeta.weebly.com/uploads/1/3/0/7/130775164/3484439.pdfIn PDF document text
    • https://molulodanewiv.weebly.com/uploads/1/3/1/6/131606256/bb53b6f8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4450037/normal_5fdc2ce972425.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461498/normal_601d25a9adfe4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454561/normal_6011dddf31626.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379848/normal_5fe1c88a339fb.pdfIn PDF document text
    • https://gemamiji.weebly.com/uploads/1/3/4/3/134372226/8281851.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490123/normal_5fdf4d72a492f.pdfIn PDF document text
    • https://bujabofilurukok.weebly.com/uploads/1/3/2/6/132682168/davitugulatevu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366402/normal_5fec0d2f6c18a.pdfIn PDF document text
    • https://cdn.sqhk.co/xoresarib/jgTLSif/gowavimusetenifivob.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/lixuduwonifa/52433806002.pdfIn PDF document text
    • https://s3.amazonaws.com/jivagajamav/49605821848.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_off0000eb2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB2B 5280 bytes
SHA-256: 2c7ce001d6e4084467e37f0322834ee1d6ce313e6a06fac533978017144f5c08
font_01_sfnt_off0000fd2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD2C 10352 bytes
SHA-256: 950fc708f659c3bfbb7cc09dae7ea09376b2663b10e29ec08729b08558ca4451