Malicious PDF — malware analysis report

Static analysis result for SHA-256 460e2d0382a2d71c…

MALICIOUS

PDF

72.2 KB Created: 2021-02-17 11:29:30 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: c112d5a59f4049a6f2b2afd1997294c7 SHA-1: 9aa2ccdb148aa586ec49b4da1f714a0127f41eb6 SHA-256: 460e2d0382a2d71c6dae4805ebe92ce62f7e4b6a8f27d2ecda9f698827b08e8b
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/wix?keyword=dbz+space+legends+characters In PDF document text
    • https://static.s123-cdn-static.com/uploads/4415308/normal_5ff714d8bfa5e.pdfIn PDF document text
    • https://derajuxojop.weebly.com/uploads/1/3/1/4/131452827/repivumivo.pdfIn PDF document text
    • https://nonelugo.weebly.com/uploads/1/3/0/7/130775267/2f1c4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481157/normal_5fdbdcd04de84.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409421/normal_5ff4311fca684.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375884/normal_5fcdaf08da03e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://romamosok.rf.gd/sulutigubepesagavutiz.pdfIn PDF document text
    • http://fowasabitafal.epizy.com/pokemon_diamond_and_pearl_prima_guide.pdfIn PDF document text
    • http://pidulejos.epizy.com/chicken_soup_for_the_teenage_soul_excerpt.pdfIn PDF document text
    • http://redariwim.rf.gd/lijeguvubamamo.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/chogada_tara_ore_chabila_tara_ringtone.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_off0000de07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE07 5524 bytes
SHA-256: 551bd6a59dafe27db5805c7d4c5237ac583884c8419fa3075290ada208c38f6e
font_01_sfnt_off0000f0c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C5 10380 bytes
SHA-256: 16186507ab0a6b2d8c438208c76d4da04fb4a4b3c814a545db36e3b241403da3