Malicious PDF — malware analysis report

Static analysis result for SHA-256 304f8117d297d9ff…

MALICIOUS

PDF

73.4 KB Created: 2021-02-18 05:44:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: ec6c5de8f2e7c446a7016e28a8b5b6cd SHA-1: d7ac46681e32dea95d7e15f1fbf203051ee6a9e3 SHA-256: 304f8117d297d9ff64dd621747780eb9d14dad3c78d0e39b1ebae1c0fe558bad
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=what%20colour%20is%20quinacridone%20magenta PDF link annotation
    • https://budovatepita.weebly.com/uploads/1/3/1/3/131398204/kagivotori_gimuranadelup.pdfIn PDF document text
    • https://tuwoganerolet.weebly.com/uploads/1/3/4/6/134631505/015e6815363afa.pdfIn PDF document text
    • http://bazis-rostov.com/37842858522tll0e.pdfIn PDF document text
    • http://goproonly.com/predicate_nominative_and_predicate_adjective_worksheet_with_answersrwbg2.pdfIn PDF document text
    • https://lamipakowoj.weebly.com/uploads/1/3/2/8/132814468/wabibovudob-fekegifid-mowob-xobilafusi.pdfIn PDF document text
    • https://vigedinolig.weebly.com/uploads/1/3/1/3/131380992/1969361.pdfIn PDF document text
    • http://trells.space/11249062576yb9wn.pdfIn PDF document text
    • https://cdn.sqhk.co/jomonufo/hdjjib9/xiroxemanodafexenax.pdfIn PDF document text
    • http://hurleyshamburgers.com/champions_league_intro_music17ar0.pdfIn PDF document text
    • http://prodive.su/assetto_corsa_competizione_updatekohfo.pdfIn PDF document text
    • https://jitebogegamoma.weebly.com/uploads/1/3/4/7/134761197/1abea48a8.pdfIn PDF document text
    • https://guzaluvezitalil.weebly.com/uploads/1/3/4/6/134645516/e34f6e2ba8f2d.pdfIn PDF document text
    • http://xununutogelukok.22web.org/mabutitadasudibiw.pdfIn PDF document text
    • https://cdn.sqhk.co/wadusazilox/Aihih2s/tractor_pulls_in_missouri_2020.pdfIn PDF document text
    • http://naturwows.space/ironplanet_wire_addressz4ozw.pdfIn PDF document text
    • https://wosowabo.weebly.com/uploads/1/3/4/3/134340570/kaxuride_bulodaz_nalivevufinowo_susulexo.pdfIn PDF document text
    • http://metagopu.22web.org/45595301959.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zabidogadifosis.rf.gd/shutter_island_full_movie_free_mp4.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_off0000e17e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE17E 5492 bytes
SHA-256: bc8d52b429ae8bfb10e0dd50fcf247d78f0a52912517b1feea44ad31cfa32fda
font_01_sfnt_off0000f403.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF403 10848 bytes
SHA-256: fc6c33c87facccb15cc5f7f0e7fb7054f532ec3f2b4ea8f2a5057c4cad84570b