Malicious PDF — malware analysis report

Static analysis result for SHA-256 30957e87203ce3f5…

MALICIOUS

PDF

71.8 KB Created: 2021-02-15 02:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 4fa61b1e7df7fcdb09132431ecac39f4 SHA-1: 467a07571bf416a1027873a8df5b96c13b0acca4 SHA-256: 30957e87203ce3f50f22ff150911d3bcbca624622c6ffcde29a16cc4d95896e9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • 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 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://bologen.ru/123?utm_term=hp+15-f233wm+battery PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465006/normal_6015eef8d0059.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454670/normal_600eca4765893.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413835/normal_600ffe51ccb47.pdfIn PDF document text
    • https://cdn.sqhk.co/dojidavos/4hhijsa/calibria_crystal_guardians_reroll_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403948/normal_6017218d1d235.pdfIn PDF document text
    • https://judexesadizit.weebly.com/uploads/1/3/0/7/130738912/dd91a18e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496582/normal_6014569944630.pdfIn PDF document text
    • https://suwuvonujijipi.weebly.com/uploads/1/3/4/0/134042364/nozebogasuvaxiduver.pdfIn PDF document text
    • https://gupufema.weebly.com/uploads/1/3/4/4/134456882/e6002f86666c4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4467601/normal_5fcd5a5b8d0c8.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491723/normal_5ffd792d0ac3d.pdfIn PDF document text
    • https://cdn.sqhk.co/jakufomego/PjbVBkp/nonivoporiwupivebu.pdfIn PDF document text
    • https://dataremidesop.weebly.com/uploads/1/3/4/6/134697992/9f78f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490534/normal_601fae99b21d3.pdfIn PDF document text
    • https://cdn.sqhk.co/lewuravasu/Uyjjja8/ikea_dresser_hack_mid_century_modern.pdfIn PDF document text
    • https://cdn.sqhk.co/fozozumaj/gjhc2h8/stock_market_live.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388067/normal_5fe694da6671d.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/palikuvexake/climograph_worksheet_answer.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_off0000d99f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD99F 5636 bytes
SHA-256: cfb15b2d8185732a557c088163d031d58a56ec2e2272babb1d1b051ffb27f414
font_01_sfnt_off0000ece1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xECE1 10980 bytes
SHA-256: 97e597736c169d9e34cdbc0c2ef148dd09d43b17addd149e67b11df8ec4fe7ca