Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed0bb24134da4454…

MALICIOUS

PDF

75.5 KB Created: 2021-02-23 22:15:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-20
MD5: 92428c94ceac8a2684894e010d12fa6d SHA-1: ae9f347f9ad2c390d803f2e0a0b90dabba46289a SHA-256: ed0bb24134da4454052a4e4cc989b61259736bb86e1ca4d94b87c7e2507510b4
186 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF file was identified as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a large number of external links, many hosted on disposable domains, suggesting a link farm or phishing operation. The presence of embedded URLs and the PDF_SEO_LINK_FARM heuristic further support this, pointing towards an attempt to redirect users to potentially harmful content.

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://maypoin.ru/strik?utm_term=canon+powershot+sd1200+is+price PDF link annotation
    • https://zogoporev.weebly.com/uploads/1/3/1/3/131381602/rivotomififidi.pdfIn PDF document text
    • http://study-english-02.space/xetiwoftr3nq.pdfIn PDF document text
    • http://petrol-v-pol-price.site/the_human_centipede_full_movie_20090i8fz.pdfIn PDF document text
    • https://wanevowak.weebly.com/uploads/1/3/4/4/134465130/3823039.pdfIn PDF document text
    • https://sovomebidug.weebly.com/uploads/1/3/1/3/131379042/38f3632c3997.pdfIn PDF document text
    • http://idealicait.site/download_cheat_top_boat_racing_simulator_3dnt4n0.pdfIn PDF document text
    • https://vawudida.weebly.com/uploads/1/3/4/8/134890241/wasivezumefaxumot.pdfIn PDF document text
    • http://trastqort.online/mankiw_macroeconomics_5th_edition_solutionsrt3ld.pdfIn PDF document text
    • http://supportcopyright.net/70125554967ju2su.pdfIn PDF document text
    • https://bigonukoduxa.weebly.com/uploads/1/3/2/7/132741189/6177343.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/dovulavavo/generating_allure_reports_in_protractor.pdfIn PDF document text
    • http://povuputuk.epizy.com/93624607991.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_off0000e989.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE989 5452 bytes
SHA-256: 9fabbb11aca28921f4127c6963628581b6fdb8f27f86848abeb9843fad7c24a7
font_01_sfnt_off0000fc21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC21 10916 bytes
SHA-256: f14adcca04aa0fa179b68b697328ae66b498da4015d7eaf1a3b31f7e9eaf3fb5

Open this report in the interactive analyzer, or submit your own file for analysis.