Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb02ebe12578196…

MALICIOUS

PDF

66.4 KB Created: 2021-03-03 21:42:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 670825270f78436a70f0b5175a2fd3c6 SHA-1: 19affdc729a0ac166a0f8b730b6ae1d146609cfa SHA-256: ceb02ebe12578196f40d5f82e7e3abf14884d9f1d037cb15c464246436f16efe
244 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
  • 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 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.
  • 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/award?keyword=admiral+washer+timer+replacement In PDF document text
    • https://davugunibelerab.weebly.com/uploads/1/3/4/6/134612729/nobuti.pdfIn PDF document text
    • https://vepimogarib.weebly.com/uploads/1/3/4/8/134856589/8524592.pdfIn PDF document text
    • https://gunagejosiva.weebly.com/uploads/1/3/0/7/130738835/folune.pdfIn PDF document text
    • https://pibefabetanob.weebly.com/uploads/1/3/4/3/134376782/zawexuturoke.pdfIn PDF document text
    • https://pegojuzifaxoda.weebly.com/uploads/1/3/5/3/135309499/xuzolimawekowat-zorumi.pdfIn PDF document text
    • https://repemokalit.weebly.com/uploads/1/3/1/8/131856723/gokufal-bamuzud-domuwu-rozejezegapat.pdfIn PDF document text
    • http://bella24.xyz/monefunematewovowirw7d6.pdfIn PDF document text
    • https://perutibabejodu.weebly.com/uploads/1/3/6/0/136051808/pugesosovuvilekul.pdfIn PDF document text
    • https://lipuxavevafip.weebly.com/uploads/1/3/1/3/131398459/viges.pdfIn PDF document text
    • http://wwwbcpzonasegura-viabcp.com/linear_and_nonlinear_functions_worksheet_with_answerslygvc.pdfIn PDF document text
    • https://nuzupodulekego.weebly.com/uploads/1/3/4/6/134615520/382ff1e96be8515.pdfIn PDF document text
    • https://ninegepidilu.weebly.com/uploads/1/3/0/7/130738727/sugiwezaxi-koxaduw.pdfIn PDF document text
    • http://medway24.com/what_happened_to_two_face_in_the_dark_knight_returnspev7u.pdfIn PDF document text
    • https://kivasemav.weebly.com/uploads/1/3/2/6/132680863/5366792.pdfIn PDF document text
    • https://sedezexe.weebly.com/uploads/1/3/4/3/134342112/48984c9a9.pdfIn PDF document text
    • http://springtea.space/jafomegureroly3fni.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/mcsa_exam_questions_and_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nademopor/sukerategitidopagikinixi.pdfIn PDF document text
    • https://s3.amazonaws.com/lowuwofuxali/88116094486.pdfIn PDF document text
    • http://gosaduzunake.myartsonline.com/dell_optiplex_gx620_cpu_price.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_off0000c8f7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8F7 5396 bytes
SHA-256: 5aa5132a5e9a2defdb8cdcf60302ed8b174d2937020c0f3418588edb3691f4ee
font_01_sfnt_off0000db2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB2F 9740 bytes
SHA-256: 90c562eb59e0383140225946ad8285c4c6afc18296c25fab04d58bf8a0357082

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