Malicious PDF — malware analysis report

Static analysis result for SHA-256 5952a5499bbe95a8…

MALICIOUS

PDF

73.1 KB Created: 2021-02-14 02:39:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 85e5e1a9bb57dea3a79d73212e11c925 SHA-1: 3573b04b6a2fe74a684b0bc4fd8dbcc5d2f0079f SHA-256: 5952a5499bbe95a8613a15982664b5595b291c63a485a2bcc7e34d8ee0defb88
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/aws?utm_term=windows+10+update+1903++assistant PDF link annotation
    • http://energierecrute-emplois.com/enojada_pierde_piggy_gifsio17j.pdfIn PDF document text
    • http://on-arenas.com/kung_fury_movie_castmcrpe.pdfIn PDF document text
    • https://cdn.sqhk.co/gebitasixa/fsDhfhh/spectacled_bear_facts.pdfIn PDF document text
    • https://cdn.sqhk.co/molavagew/ogcSgdt/missile_command_mame_rom.pdfIn PDF document text
    • http://erogan-columbia.site/workout_plan_to_lose_weight_and_tonewtr3u.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4485946/normal_5fcfe677cc733.pdfIn PDF document text
    • http://selozufuwadapuw.66ghz.com/94276432241.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/hhEXpij/89472831678.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/ojdcBhc/zibukererilodajovivudubut.pdfIn PDF document text
    • http://alcozerox.com/zikimoneruvobolekuwolasan1ogap.pdfIn PDF document text
    • https://cdn.sqhk.co/nejijilo/hdggVig/68013773539.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xotepugiz.rf.gd/demon_hunter_leveling_guide_wowhead.pdfIn PDF document text
    • https://s3.amazonaws.com/jonora/splatoon_callie_and_marie_amiibo_performance.pdfIn PDF document text
    • http://mezuvisudaduvo.epizy.com/banemiwidujagu.pdfIn PDF document text
    • http://zafipuzekamezu.epizy.com/67720957846.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_off0000e2dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE2DD 5444 bytes
SHA-256: d1af40de58d523cf569e241d88e9c39175b1734290316a10a2727360b67cc594
font_01_sfnt_off0000f590.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF590 10036 bytes
SHA-256: b8ebc8e2d7f8f0847936397c7262ef58417e8cde34bc0819b3b1f45ceca6d8c6