Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ee7fdedfa1fe108…

MALICIOUS

PDF

70.8 KB Created: 2021-02-23 22:06:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 38e8bb0bc734d942c602a1f5e9bcc0e3 SHA-1: 132b8616e2b8c40c71aa7564726c5790f04948d5 SHA-256: 1ee7fdedfa1fe10885ce2321f062fffb5b9e22d37de662c740177a4163ced602
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://seumenha.ru/wix?keyword=free+marriage+prediction+in+hindi+by+date+of+birth PDF link annotation
    • https://cdn.sqhk.co/pujixefan/jaiiebL/63826125445.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479454/normal_60089bf46457a.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4480588/normal_5ff4d53467cb9.pdfIn PDF document text
    • https://paguvobidelovug.weebly.com/uploads/1/3/2/8/132815355/vitorefatisu-buxuw-gomaz.pdfIn PDF document text
    • https://fipamowusaki.weebly.com/uploads/1/3/4/8/134879766/7150214.pdfIn PDF document text
    • https://fupobemoxu.weebly.com/uploads/1/3/4/6/134669325/8ac1211.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465263/normal_5fe6104a4041c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449181/normal_5ff1ee0b73b6d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409811/normal_6034c7a14b4ae.pdfIn PDF document text
    • https://fobulosarurek.weebly.com/uploads/1/3/3/9/133997379/tegutikim_wibabolo_wibogaki_xaxodel.pdfIn PDF document text
    • https://zajinepimasi.weebly.com/uploads/1/3/2/8/132815118/7a310828.pdfIn PDF document text
    • https://xitenewoz.weebly.com/uploads/1/3/4/3/134314294/bezasu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4471686/normal_6015105c01c85.pdfIn PDF document text
    • https://vokaratux.weebly.com/uploads/1/3/5/3/135335958/5385573.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475866/normal_600a3ca3421b1.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/zasepo/boisterous_festivity_crossword_answer.pdfIn PDF document text
    • https://s3.amazonaws.com/semuxemakaw/golufeviluvewuseribidun.pdfIn PDF document text
    • https://s3.amazonaws.com/sajatofubote/putujiledekodasurinemeku.pdfIn PDF document text
    • https://s3.amazonaws.com/pesetufavo/lazulevabuzuw.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_off0000d82b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD82B 5556 bytes
SHA-256: d83acd6553baee550a6d8ae6012d6e373b393bfb1f0dcc9b0a4edd3485c6b1c3
font_01_sfnt_off0000eaf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAF0 10180 bytes
SHA-256: bef065ad02a223da11f3d2135edbe9b52883f88ee860492404a1ea5b623c62ad

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