Malicious PDF — malware analysis report

Static analysis result for SHA-256 6746812d33d98299…

MALICIOUS

PDF

73.2 KB Created: 2021-02-21 13:45:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e066db5b49cc410c15d7e11762e3e02f SHA-1: 7f5ef4d79fcfd5817969eafb2a60f7d0a9f1edae SHA-256: 6746812d33d98299c31f9886c1499a943d0595ad0c3bcd4bfec19304e987ddf1
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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/wix?keyword=libigrow+for+female PDF link annotation
    • https://cdn.sqhk.co/sebuwemid/jfdB8if/75051894972.pdfIn PDF document text
    • https://ridimejaxokixis.weebly.com/uploads/1/3/5/3/135340331/tujipenajuxusojo.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369185/normal_60135c9bbbde8.pdfIn PDF document text
    • http://bodyita.space/similarities_between_parliamentary_and_presidential_system_of_governmentkw9da.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4420911/normal_600d59a959ec6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4483089/normal_601a1da4c394f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451750/normal_601bbc420fe9e.pdfIn PDF document text
    • https://cdn.sqhk.co/pebekaja/euoihhc/strategy_and_tactics_medieval_wars_game.pdfIn PDF document text
    • https://ligiponofejejo.weebly.com/uploads/1/3/4/3/134346234/netolo.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/ehdyjbC/52601351549.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4454543/normal_5fc6b80ce53db.pdfIn PDF document text
    • https://cdn.sqhk.co/wojomisew/rhiDgdB/nhl_21_release_date_pre_order.pdfIn PDF document text
    • http://detonic-hypertonie.website/kalevutetiwujizetojapedefy9b8.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
    • http://kizarup.epizy.com/the_fox_and_the_crow_moral_of_the_story.pdfIn PDF document text
    • http://fusatepalu.epizy.com/documentation_of_irrigation_project_report.pdfIn PDF document text
    • http://gagolugumetuvo.epizy.com/63774836693.pdfIn PDF document text
    • http://nodafawujanego.rf.gd/61287245152.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_off0000d62b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD62B 4684 bytes
SHA-256: 310f17d435aa68a1de223f639942821a28f51cf8d186f37d34a5f2817a26e55f
font_01_sfnt_off0000e61f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE61F 10428 bytes
SHA-256: d768bc355a5312b688357598224bffc13f19fd8059495d95075f8e96e25692e5
font_02_sfnt_off000109cb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x109CB 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3

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