Malicious PDF — malware analysis report

Static analysis result for SHA-256 322bfc68b67a40ee…

MALICIOUS

PDF

71.7 KB Created: 2021-03-02 22:55:43 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4127416d0e9406528895ed3daf29f4e6 SHA-1: 41d940376c201a68c22db921f73e7bc182b55225 SHA-256: 322bfc68b67a40ee9492d5d1bec6f90f35fe9e741027523327fb5f6f23f1cca5
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://crophysi.ru/wix?keyword=references+page+apa+7 In PDF document text
    • http://rolapisi.scienceontheweb.net/rijitesojakakok.pdfIn PDF document text
    • http://wirobigi.medianewsonline.com/15246218012.pdfIn PDF document text
    • https://cdn.sqhk.co/balaragu/I7LjawJ/veverurakodemesururomapa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481676/normal_602e3fbee767b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_5fd8071141154.pdfIn PDF document text
    • https://cdn.sqhk.co/xopigotax/bhgK2m1/notafetigorigowalixijikud.pdfIn PDF document text
    • http://wapividazofar.scienceontheweb.net/what_is_new_in_oracle_database_19c.pdfIn PDF document text
    • http://lapiwudoxavov.scienceontheweb.net/colorado_quality_teacher_standards.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488592/normal_60224c22892f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458144/normal_5fd881e5bb01d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390383/normal_60145493616a1.pdfIn PDF document text
    • http://bibuzikufaje.mygamesonline.org/tactics_by_gregory_koukl_free_download.pdfIn PDF document text
    • https://cdn.sqhk.co/noluxokeruma/Hgdydhj/juzewemuverewadip.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366004/normal_60371233a390b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447093/normal_603b9d1edb3a2.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/ggfx8gj/redeem_voucher_gamemax_telkomsel.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lijowavatajo.myartsonline.com/66396747665.pdfIn PDF document text
    • http://gixarewujedel.atwebpages.com/76424506810.pdfIn PDF document text
    • http://vilatelisoto.onlinewebshop.net/65716590083.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/how_to_describe_sunset_in_word.pdfIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/sword_art_online_alicization_war_of_underworld_part_2_final_season.pdfIn PDF document text
    • http://gixarewujedel.atwebpages.com/povukadaxalakinelewut.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_off0000dd3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD3C 5240 bytes
SHA-256: 39764b8114973299f0f918cf2bd0c02c37777b7e9e073595cc5a3458f0b06655
font_01_sfnt_off0000ef32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF32 9984 bytes
SHA-256: e7ba3340d062cd43b8ab882ee7f19a03282eed4e889699061ac306ae144686fa