Malicious PDF — malware analysis report

Static analysis result for SHA-256 080e1784515b4293…

MALICIOUS

PDF

69.3 KB Created: 2021-03-04 02:50:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 0183e081a2c1e19de95cb09ef0d34d8e SHA-1: f6a96137fac6aaec5ed667826ae70eca87cfbcde SHA-256: 080e1784515b429307d1aae3afe3e0c05e360349f2cc0d7d214a6de81e2271a5
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://ponafet.ru/wb?keyword=c++%20hackers%20guide%20pdf PDF link annotation
    • http://zixudivibudizu.scienceontheweb.net/wedopodawijonelowepekik.pdfIn PDF document text
    • https://kupufulat.weebly.com/uploads/1/3/4/6/134643140/1191046.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4393486/normal_600f3f776b009.pdfIn PDF document text
    • http://rineset.xyz/74635323526vyu8b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378618/normal_6027b11c1e554.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4477921/normal_600d40bebaf70.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379369/normal_600d1b41aa7cf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465691/normal_5feafc7b55103.pdfIn PDF document text
    • http://luwinilulurop.mywebcommunity.org/dazedago.pdfIn PDF document text
    • https://nakubinigana.weebly.com/uploads/1/3/1/3/131379761/dabonit_mopokew_lomobufafijosa.pdfIn PDF document text
    • http://bosemefawixuwov.mypressonline.com/dodogumevivaratujumibebor.pdfIn PDF document text
    • https://nadarikiwuxat.weebly.com/uploads/1/3/2/7/132712530/bac463d8914e.pdfIn PDF document text
    • http://rexuwoxaga.sportsontheweb.net/46229100444.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485587/normal_6008b2a430774.pdfIn PDF document text
    • https://tidosivapozagul.weebly.com/uploads/1/3/4/3/134390518/xatapi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fedorahosted.org/lohitIn PDF document text
    • http://kopolug.myartsonline.com/83395217211.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_off0000c389.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC389 5352 bytes
SHA-256: 0fb888c47249f24327d49bbd3213cf8e96c60b3d7386e4679dddff1b96620847
font_01_sfnt_off0000d5b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD5B7 10500 bytes
SHA-256: 88dd47fb407b97ba903322103926846691423d1bb77ba85e9ac81de0ae95be31
font_02_sfnt_off0000f9d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF9D6 3096 bytes
SHA-256: fbb94ea915e12308b3b5a95a30f9ba1b51446acd5968927ec41912d51b44c00c

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