Malicious PDF — malware analysis report

Static analysis result for SHA-256 4024baf803cfbbbf…

MALICIOUS

PDF

70.1 KB Created: 2021-02-25 07:04:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 30706d017ae85323c8eafbb1825cbee8 SHA-1: 0093e7aa16af02b55a5215fca978b0b07254c31b SHA-256: 4024baf803cfbbbfba827de9bec7415fb2158486bd98cf45458a4befa9941d74
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://bologen.ru/aws?utm_term=average+salary+of+a+interior+design+intern PDF link annotation
    • https://mekowoto.weebly.com/uploads/1/3/0/7/130738632/runalagagejoba_jelediwik.pdfIn PDF document text
    • https://pevivifigevesiw.weebly.com/uploads/1/3/5/3/135315965/512fb1f8bcc4178.pdfIn PDF document text
    • https://sararilaba.weebly.com/uploads/1/3/1/4/131482808/50a706.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4379848/normal_5fcbee125747c.pdfIn PDF document text
    • https://karopudalel.weebly.com/uploads/1/3/4/8/134881347/4075722.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4408595/normal_5ffcdd2b4fe18.pdfIn PDF document text
    • http://tomolijoponix.mypressonline.com/chapter_26_cold_war_conflicts_test_form_a_answers.pdfIn PDF document text
    • https://xifalazixaxidig.weebly.com/uploads/1/3/0/8/130874217/c1f2fb2723d59.pdfIn PDF document text
    • https://wevejabunom.weebly.com/uploads/1/3/1/4/131406075/sumij.pdfIn PDF document text
    • http://euroshopmn.space/how_to_use_a_metric_engineer_scale_rulerga13q.pdfIn PDF document text
    • https://bujasosepamus.weebly.com/uploads/1/3/4/6/134626994/3442526.pdfIn PDF document text
    • http://bumasujofoj.getenjoyment.net/97490499446.pdfIn PDF document text
    • http://kakafeg.scienceontheweb.net/lalowadenar.pdfIn PDF document text
    • http://rixorevu.getenjoyment.net/can_i_substitute_vinegar_for_keurig_descaling_solution.pdfIn PDF document text
    • http://siwosupegejolop.medianewsonline.com/67862073763.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sidepojedava.myartsonline.com/62125545959.pdfIn PDF document text
    • http://bogalibamadom.myartsonline.com/45036145821.pdfIn PDF document text
    • http://rulamiji.onlinewebshop.net/best_data_structures_and_algorithms_course_for_interview.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_off0000d4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD4ED 5224 bytes
SHA-256: fafe9c2a8598e8b7f4b314f59d0a9e6e4095038cdf2be06b3d0f1d971accccec
font_01_sfnt_off0000e6d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6D1 10564 bytes
SHA-256: 9323af9f56eabda59a1c2e4ace5dac5a488164dfd46f27e138eb30e6543edca5