Malicious PDF — malware analysis report

Static analysis result for SHA-256 880aacea87faabc8…

MALICIOUS

PDF

78.0 KB Created: 2021-02-16 02:43:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 3a64468cae4cdb919078ad8de196625f SHA-1: 2fd9ab2998899bb6b2debdbcb1067cc3dd98c0a1 SHA-256: 880aacea87faabc8bdf3e71af8f96edc0351217ab5b0441056e5039cbe051301
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://druttle.ru/wb?keyword=how%20to%20learn%20ms%20access%202007%20step%20by%20step%20pdf PDF link annotation
    • https://pefizisiguxuv.weebly.com/uploads/1/3/1/4/131438819/muzoluwopuzo_vazozomi_kokokene_nigibufi.pdfIn PDF document text
    • http://everydays.space/kodi_lee_agt_championss8v1x.pdfIn PDF document text
    • http://www-sfr-fr-monespace.com/guia_autometrica_enero_20205pnef.pdfIn PDF document text
    • http://shopyou.online/34831241510mxpw3.pdfIn PDF document text
    • http://kikaxefe.22web.org/29649915662.pdfIn PDF document text
    • http://options.expert/60692179011n7evm.pdfIn PDF document text
    • https://foraketarikovef.weebly.com/uploads/1/3/4/6/134608655/widanovifiga.pdfIn PDF document text
    • http://misstourist.info/11524602545ls9ow.pdfIn PDF document text
    • http://profaudit32.ru/angka_penting_adalah7wztj.pdfIn PDF document text
    • https://vufagejibuto.weebly.com/uploads/1/3/1/4/131483336/03f806550.pdfIn PDF document text
    • http://digitalmedialit.com/bosibubakolidarogitiashhg.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/xoferuzu/wijisogamel.pdfIn PDF document text
    • https://s3.amazonaws.com/xijalovelokolep/19577520218.pdfIn PDF document text
    • http://dajidagetulawu.epizy.com/38846253727.pdfIn PDF document text
    • https://s3.amazonaws.com/gisujubolidine/template_cv_bahasa_inggris_word.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_off0000f2f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F9 5948 bytes
SHA-256: 46d411da29ff9bbacbfc8334499d1dd69faf6301d1526f7b5e5c35ebe209e968
font_01_sfnt_off0001073d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1073D 10508 bytes
SHA-256: b829bb4046412373d085bc6b7532cec60be7d025548e846b4ca374b812c86cf2