Malicious PDF — malware analysis report

Static analysis result for SHA-256 212a9588b426bc9f…

MALICIOUS

PDF

68.2 KB Created: 2021-03-02 20:52:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 2433c60a23e80e5e9b1e0c0b29c43a78 SHA-1: 1cd8ac0e2ed091450e225ad761b80248d8039071 SHA-256: 212a9588b426bc9f221c73bc8f0a9b14ac8405f111ff459cd22c0c917ea19dab
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://kuzutuzo.ru/award?keyword=how+to+train+your+dragon+mcdonalds+toys+2010 PDF link annotation
    • http://fumizudo.sportsontheweb.net/pidakusudozefanobomiwu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4448746/normal_603cc8e606528.pdfIn PDF document text
    • http://henrysavbr.site/12678599008g0w9i.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485568/normal_60372ab3b9eb7.pdfIn PDF document text
    • https://tiwibuvemugijaj.weebly.com/uploads/1/3/0/7/130776889/9667409.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392452/normal_5fe2f2b1e1794.pdfIn PDF document text
    • http://gepexoliv.medianewsonline.com/how_long_do_thermador_appliances_last.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374022/normal_5fe2f90befadf.pdfIn PDF document text
    • https://nozonefabizeg.weebly.com/uploads/1/3/0/9/130969368/delegibawumowun.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453342/normal_602f5016c84ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490380/normal_60009028de20c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372707/normal_600bd83c1945d.pdfIn PDF document text
    • http://sokfresh.fun/chapter_13_forces_in_fluids_answersr82hv.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418565/normal_5fdff6cc9cc7e.pdfIn PDF document text
    • https://winilogixibofop.weebly.com/uploads/1/3/1/4/131408061/6c18e67a94.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bewexipobafuza.rf.gd/emulator_nds_android_pro.pdfIn PDF document text
    • http://piwolimosopobu.myartsonline.com/autocad_2019_free_trial_mac.pdfIn PDF document text
    • http://kuwijiti.myartsonline.com/7386752635.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_off0000cc87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC87 5740 bytes
SHA-256: 98d2d169160843fb7aae7070dabf480178213b7d63cad3b2922aa97c4e0ecbf0
font_01_sfnt_off0000e01b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE01B 10228 bytes
SHA-256: 06dfaad2b8b2e35ce2cd650c53f0d44849a45da569ed502d1b5e1af5707c43b9