Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d12d5ff14c8045f…

MALICIOUS

PDF

71.8 KB Created: 2021-02-17 07:48:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: d1d8e963cd4dd8bdd0ae961f7645786e SHA-1: 6a6bf5e1781db8157329645bb8fd74d44b3f290b SHA-256: 5d12d5ff14c8045f56efdd5d007b98efe5303140f272efd532a65311358614f1
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://jacksth.ru/wix?keyword=word+brain+penguin+level+13+answers PDF link annotation
    • http://jushq.club/31319975950gtb7q.pdfIn PDF document text
    • http://yourdesk.website/88032649351yqkw5.pdfIn PDF document text
    • http://wspring.space/5c2qsz.pdfIn PDF document text
    • http://choosemadam.site/2505913364rndv7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4426421/normal_600f9cf7e71cf.pdfIn PDF document text
    • http://cesaregaspari.com/denilirizulubofujekukiy3i14.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414339/normal_6015dc7aa5276.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443610/normal_600b9aae7f0c4.pdfIn PDF document text
    • http://reassurez-moi-fr.info/kasogudildju54.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379851/normal_600be186eab4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4457312/normal_60288e2c8db2b.pdfIn PDF document text
    • http://ig-about.net/computer_hardware_tools_names_and_pictures1z1t3.pdfIn PDF document text
    • http://ig-objectionform.com/present_perfect_for_and_since_exercisessua4b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4409246/normal_6019a21592aa2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/telasebisu/jezotonovil.pdfIn PDF document text
    • https://s3.amazonaws.com/gewisetug/kinemu.pdfIn PDF document text
    • https://s3.amazonaws.com/bagisi/sparkle_radwimps_song.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/4111600555.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_off0000cba1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCBA1 5452 bytes
SHA-256: 95087ff1bd2fe6b63cdee3e4009b654ae49e564e41d3718b20b2f8f663d5040c
font_01_sfnt_off0000de4e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4E 11484 bytes
SHA-256: 8f3704831244c7f48e4e036bed4b64b4faa4a72750fa179c19a1b60e75653259
font_02_sfnt_off000103c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x103C1 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333