Malicious PDF — malware analysis report

Static analysis result for SHA-256 145ccf26379cb249…

MALICIOUS

PDF

72.8 KB Created: 2021-03-04 17:12:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 347093cdb72dbc133ccd17dc1f125477 SHA-1: 8980f48220d445e05f82fab26569743437986392 SHA-256: 145ccf26379cb24909d6260f781d5fd4ee3f7bf65b003ede7e4687ad3c596c57
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://pelibifir.ru/wix?keyword=lab+evidence+for+evolution+worksheet+answers PDF link annotation
    • http://mivibowefumar.iblogger.org/why_is_my_laptop_battery_light_flashing.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467601/normal_602e1ed93f2b7.pdfIn PDF document text
    • https://dezegumi.weebly.com/uploads/1/3/4/1/134108828/dufemijuza-lotol-vizira-rojisaz.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366017/normal_5fd68a4a0a216.pdfIn PDF document text
    • https://gakokoxexoboj.weebly.com/uploads/1/3/0/7/130776672/ebdb4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4491686/normal_5fee12d5303f1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4386095/normal_5fcbadb89bd9e.pdfIn PDF document text
    • https://fowuwulavo.weebly.com/uploads/1/3/4/7/134754099/bojoli.pdfIn PDF document text
    • https://xisuludibu.weebly.com/uploads/1/3/5/3/135300694/novinez_jikaler_mipepewepapolom_ribodax.pdfIn PDF document text
    • https://jevoweli.weebly.com/uploads/1/3/5/9/135958856/bufurolokes-rudoruzotor-kidadepipi-durevujafup.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408319/normal_5fd86d477df1d.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/1bd050ce-1e57-49f3-b4fe-3b28d794583f/currency_wars_song_hongbing_epub.pdfIn PDF document text
    • https://3e80c8bf-0031-4ca1-bfa9-4484641fefed.filesusr.com/ugd/08103e_d46a51b62f304189992da79cb56a6861.pdf?index=trueIn PDF document text
    • http://fudixuxutinizow.rf.gd/cyber_security_policy_template.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/667efd89-76d1-4c90-885c-53b56a3f274c/vojolosawasuvaledaw.pdfIn PDF document text
    • http://tagedimevoxi.rf.gd/wajinot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4f97cd52-7609-4651-9fee-c5d0a4adc5b4/breville_juice_fountain__compact.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ad6e2354-f3ed-4975-8931-d7065efe616c/what_is_venn_diagram_in_math_grade_7.pdfIn PDF document text
    • https://0d3c4653-ec4b-4b04-9c20-59e348ba858e.filesusr.com/ugd/62200f_12fc7e925372444dba1f70f9fc745666.pdf?index=trueIn PDF document text
    • https://b5f169ef-6bcf-4d19-a24b-32bdc9dd7a5f.filesusr.com/ugd/2e79a6_87c67a3f8bb646cb83e7168598f1c645.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mawesenasijoser/50792342653.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/refusupifa.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_off0000e023.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE023 5408 bytes
SHA-256: edf6bacc0e3d6e4cd8302b135c76ab5ba048ad034c271cbfb095430871befdb6
font_01_sfnt_off0000f2a0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2A0 10124 bytes
SHA-256: 2c50fd183d613854b077336b9757d9f03db7cb3485e72470cdcbdde32c02611b

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