Malicious PDF — malware analysis report

Static analysis result for SHA-256 1072ff19b9b10c8c…

MALICIOUS

PDF

69.4 KB Created: 2021-02-14 05:43:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 888e495a72fc2b94ff41a06ccba9d861 SHA-1: cf06ae75c19b02f8f843a78a13b881a365b660c5 SHA-256: 1072ff19b9b10c8c8924a8275f401ffd81b2c64edc58a57760f2bca2ecf7fa25
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/123?utm_term=lbi+shore+fishing+report PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4490127/normal_60118866caee6.pdfIn PDF document text
    • http://reduslimitalia-oficial.site/6426760035s0tfd.pdfIn PDF document text
    • http://livecopyrightverification.com/barricades_mysterieusesitsov.pdfIn PDF document text
    • https://cdn.sqhk.co/mepetiruzi/Mz1ifie/86368231059.pdfIn PDF document text
    • http://pink-echo.club/64135964940hsw8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4388428/normal_60194ece89f93.pdfIn PDF document text
    • http://mon-cmbretagne.best/steamship_authority_woods_hole_ticketsu3rah.pdfIn PDF document text
    • http://nyvelsets.online/economy_toeic_1000_rc_vol_5g0x8k.pdfIn PDF document text
    • http://pexukakadom.22web.org/30373230715.pdfIn PDF document text
    • http://silvanozito.online/typescript_tutorialqupab.pdfIn PDF document text
    • http://lanejaselisipu.22web.org/asbabun_nuzul_surat_al_fatihah.pdfIn PDF document text
    • https://cdn.sqhk.co/madagijoj/elPBhgl/drift_donuts_rochester_mn.pdfIn PDF document text
    • http://niwifara.22web.org/beautiful_creatures_movie.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xuduzunubedi.rf.gd/jay-_z_empire_state_of_mind.pdfIn PDF document text
    • http://sudolurimav.epizy.com/29798267051.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_off0000d4ab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4AB 5000 bytes
SHA-256: e788d811dd65700de5459867620b1c26cc6d5ccd2210d660ee6140fc5c29ddec
font_01_sfnt_off0000e5af.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5AF 10360 bytes
SHA-256: 222beeaa6be489e18f216c3fa67c8e8420f4e4253b9629a99c3870840ac9426a