Malicious PDF — malware analysis report

Static analysis result for SHA-256 2cd07f5f5f161447…

MALICIOUS

PDF

70.8 KB Created: 2021-02-25 08:12:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a8f2d854f4bf7633c1db83ce4c6ad565 SHA-1: c0d6ac75e8727a0721b54e1664d521c29e690af4 SHA-256: 2cd07f5f5f1614475438aea0c854b81eca6f28ea6fb96249de74ac1b36e1a637
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://baarspo.ru/wix?keyword=sasuke+x+itachi+fanfiction PDF link annotation
    • http://mufutekuson.getenjoyment.net/32173294117.pdfIn PDF document text
    • https://cdn.sqhk.co/siboxowimu/R6jf0nf/microsoft_azure_online_training_hyderabad.pdfIn PDF document text
    • https://senamevab.weebly.com/uploads/1/3/4/6/134689233/1fededacd77.pdfIn PDF document text
    • http://gefosezidubajoz.scienceontheweb.net/49702543361.pdfIn PDF document text
    • https://cdn.sqhk.co/rajunakeb/Tgjicr8/90953398939.pdfIn PDF document text
    • https://nadagedo.weebly.com/uploads/1/3/1/8/131858166/movinuxujoj.pdfIn PDF document text
    • http://lunatan.medianewsonline.com/southwest_premier_travel_insurance.pdfIn PDF document text
    • https://cdn.sqhk.co/posiraki/anghPhi/80168838647.pdfIn PDF document text
    • https://vewiwuxipax.weebly.com/uploads/1/3/2/6/132681682/8fb9f5fe2d7e7.pdfIn PDF document text
    • https://cdn.sqhk.co/nasanoroge/Tifhche/48113827048.pdfIn PDF document text
    • http://tipofeliluget.medianewsonline.com/67266412562.pdfIn PDF document text
    • https://duxojavuse.weebly.com/uploads/1/3/1/4/131483254/a4c2c.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bikemeno.rf.gd/3572571098.pdfIn PDF document text
    • https://s3.amazonaws.com/tenunud/sojolesunu.pdfIn PDF document text
    • http://repajazofuwide.epizy.com/new_orleans_brass_band_sheet_music_free.pdfIn PDF document text
    • http://bumitorazefi.epizy.com/what_do_the_electrical_symbols_mean.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_off0000db0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDB0E 5076 bytes
SHA-256: 564d8a1c6121ef7ea4d8d2c7461eba431a1ed6e60090d8baad028d436dd0af4b
font_01_sfnt_off0000ec5b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC5B 10036 bytes
SHA-256: cebbcaeebb1de381090265a1ed96dae4fd713aaa11042cf971652c13527ff3f4