Malicious PDF — malware analysis report

Static analysis result for SHA-256 e048b056b5ea14eb…

MALICIOUS

PDF

74.8 KB Created: 2021-03-04 11:39:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 7109e417e62a3085039c793ea4bdbe28 SHA-1: ca4d139a9d1cbb9064e32d71b52a7964d74a2574 SHA-256: e048b056b5ea14eb035c926c697f980d592b68d739adb09e868627936a6a97ab
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://xajibur.ru/aws?utm_term=is+my+driver%2527s+license+suspended+in+michigan PDF link annotation
    • http://bikomowaxibujoj.medianewsonline.com/65288779324.pdfIn PDF document text
    • https://cdn.sqhk.co/jeforije/hcFfaMU/39131140256.pdfIn PDF document text
    • https://zukafetovozod.weebly.com/uploads/1/3/1/6/131636890/2078734.pdfIn PDF document text
    • https://gulurevipad.weebly.com/uploads/1/3/5/3/135349864/derodepuxebitegadad.pdfIn PDF document text
    • https://cdn.sqhk.co/fipimomozuk/hjDWjcD/pekutomixumobujigazav.pdfIn PDF document text
    • http://xapowuxif.mywebcommunity.org/panedo.pdfIn PDF document text
    • https://cdn.sqhk.co/nexasolonit/uZjjjbo/screen_recorder_download_mac_free.pdfIn PDF document text
    • https://supogile.weebly.com/uploads/1/3/1/6/131606666/5f60e921f7.pdfIn PDF document text
    • http://trendmobile.ru/classifying_rational_and_irrational_numbers_worksheet_answers5d8za.pdfIn PDF document text
    • https://cdn.sqhk.co/lesasafo/ovJElje/2107.pdfIn PDF document text
    • https://jowozulabu.weebly.com/uploads/1/3/4/0/134013075/padizo.pdfIn PDF document text
    • https://cdn.sqhk.co/banuluwopote/hjjhbEk/free_bitcoin_spinner_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/fazejitev/hhhggja/introduction_to_business_management_notes.pdfIn PDF document text
    • http://zijafanovidiz.sportsontheweb.net/domogogexulopidi.pdfIn PDF document text
    • http://mumolazesinidix.getenjoyment.net/14559685944.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e42a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE42A 5620 bytes
SHA-256: d5de01a080583e040c7f3650e2a8dd84d9e28e6b28a8cc8da279f2f1daf8e69f
font_01_sfnt_off0000f731.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF731 11484 bytes
SHA-256: 08c49588b45fe0ced009951212d9234448d0589419610181ebc6cfa694bd57d9