Malicious PDF — malware analysis report

Static analysis result for SHA-256 f812e27094c338f1…

MALICIOUS

PDF

69.9 KB Created: 2021-03-03 11:27:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 217fd39982b3af20cff87df398cc4676 SHA-1: ba18d17019338fb5cf9b1f30156d5f44256b9d64 SHA-256: f812e27094c338f1a4c15f403d81f23eee57df4b739569e4fb5f7d9d3ac4dee0
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://jottigo.ru/award?keyword=how+to+identify+a+rifle+by+serial+number PDF link annotation
    • https://sizigemud.weebly.com/uploads/1/3/4/6/134606095/7507889.pdfIn PDF document text
    • http://jodopafipunew.22web.org/pajed.pdfIn PDF document text
    • http://sosiwuro.iblogger.org/cambridge_book_8_test_3_listening_answers.pdfIn PDF document text
    • https://niladituzisum.weebly.com/uploads/1/3/4/7/134736231/cbea4d173.pdfIn PDF document text
    • https://gapotijaj.weebly.com/uploads/1/3/1/3/131383657/7430120.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4472501/normal_6006b7a2286e9.pdfIn PDF document text
    • https://losebevaxefot.weebly.com/uploads/1/3/5/3/135347065/6865377.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478669/normal_60353686f0b98.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4370791/normal_60078d3b56fbc.pdfIn PDF document text
    • http://nemosixumeki.mypressonline.com/tofamapijilasuv.pdfIn PDF document text
    • https://vuderuxedus.weebly.com/uploads/1/3/4/6/134692959/bb6d08b1cff6ce9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fotiworoz.epizy.com/levafij.pdfIn PDF document text
    • http://zekuvug.rf.gd/96016514309.pdfIn PDF document text
    • http://laletanegimiw.epizy.com/kixegokabuwugizotugotetij.pdfIn PDF document text
    • http://lufepapuxakexa.epizy.com/how_to_write_problem_statement_in_thesis_example.pdfIn PDF document text
    • http://badokelo.rf.gd/87809041976.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_off0000d481.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD481 5348 bytes
SHA-256: f1ab00038c522cd12e1ac8b8643a1d88b71fcaa9a11489eaa989022b16bc2345
font_01_sfnt_off0000e6af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6AF 10680 bytes
SHA-256: 408d7560467b55fc567964baf07dd62573811bfe7f78d167b3c1171714d42799