Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a5081c903615ce1…

MALICIOUS

PDF

71.3 KB Created: 2021-02-13 03:39:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: fcfb6cc8e1756b2b4a2dc2623cdacf22 SHA-1: 2164ae17ae5e28504fb224849fa3653e88011513 SHA-256: 8a5081c903615ce1609c8251036a661a8142d2094545cfab8714ce037e11f3f7
66 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • 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://jottigo.ru/wix?keyword=factory+direct+furniture+johnson+city+tn+closing PDF link annotation
    • http://vuruvuzivad.22web.org/xurusurisofafelarowonewu.pdfIn PDF document text
    • https://cdn.sqhk.co/fetuxudo/cwiahYW/star_wars_movies_in_order_to_watch_chronological.pdfIn PDF document text
    • http://dinetaki.22web.org/kazenopojaxope.pdfIn PDF document text
    • https://cdn.sqhk.co/daborofus/dwDhfBC/shogun_definition_world_geography.pdfIn PDF document text
    • https://cdn.sqhk.co/kitobanifamo/Kczgdhd/kepifav.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/xLhgidm/90135012007.pdfIn PDF document text
    • https://roloruvibufezer.weebly.com/uploads/1/3/1/4/131410818/5e845689bae.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://nosekaj.epizy.com/45297157417.pdfIn PDF document text
    • http://kakafemapekumu.epizy.com/queen_size_bed_sheet_dimensions.pdfIn PDF document text
    • http://fupewazogapoda.rf.gd/bloons_td_battles_mod_apk_club_access.pdfIn PDF document text
    • http://fabupumow.epizy.com/nazosivexiwoxelugokesafap.pdfIn PDF document text
    • http://wujawejibizub.epizy.com/zuxezirikiberuborixib.pdfIn PDF document text
    • http://bevonox.epizy.com/research_scientist_resume_template_word.pdfIn PDF document text
    • http://bezepegu.epizy.com/71186481589.pdfIn PDF document text
    • http://gibivugaxuma.rf.gd/belayim_petroleum_company_annual_report.pdfIn PDF document text
    • http://vimadetuvawese.rf.gd/ziwolatigavajokifesus.pdfIn PDF document text
    • http://lonukidoni.epizy.com/vimasobefitipogomuwuril.pdfIn PDF document text
    • http://sivinufedumoja.rf.gd/sorting_and_searching_algorithms_in_c.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cc66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC66 5300 bytes
SHA-256: 8d2a1bfb1323c165e33a44231e541ccc1a4dca0da07344ea7ec9ccf98c644aff
font_01_sfnt_off0000de6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE6D 10276 bytes
SHA-256: 1f21a621a5b5b02bc65dbf5fbd4a2c5b238a5ada5a329401f48d87ad8ceaf1d8
font_02_sfnt_off0001018e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1018E 4324 bytes
SHA-256: 7f6049e5011acf0e8581793f2bc2bb947aac2929fdb77abc318b2a6155c1ef71