Malicious PDF — malware analysis report

Static analysis result for SHA-256 271865893a95fb38…

MALICIOUS

PDF

71.8 KB Created: 2021-03-03 14:52:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 043869881ccbb54a568ad812ad882c88 SHA-1: 422ecd3a0c87b9a9c4204f26acd2be1615a83c14 SHA-256: 271865893a95fb381af3956705282942a7ae2da454a6a3b82bc105a83f7c219b
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://soxebez.ru/award?keyword=fix+instruments+near+me PDF link annotation
    • https://zixokamewi.weebly.com/uploads/1/3/4/3/134386319/5a2f913c04.pdfIn PDF document text
    • https://cdn.sqhk.co/moxinivo/Rjg4Ajf/kijakozonirebodexog.pdfIn PDF document text
    • https://cdn.sqhk.co/woleparos/ijT2BCc/ice_hockey_world_championship_2019_quarter_finals.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451208/normal_6029ae9d6bd5c.pdfIn PDF document text
    • https://cdn.sqhk.co/sofizagumup/jjdwgiR/71717848163.pdfIn PDF document text
    • http://bekedoziludi.22web.org/what_are_the_dimensions_of_a_soccer_field_in_meters.pdfIn PDF document text
    • http://xuribof.medianewsonline.com/towud.pdfIn PDF document text
    • http://tinuliv.22web.org/ix5000_cisco_installation_guide.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374860/normal_6020fb9d32b86.pdfIn PDF document text
    • https://cdn.sqhk.co/vaxarogajib/jcWjajj/adderall_lyrics_popp_hunna_clean.pdfIn PDF document text
    • https://xilamexazoleguj.weebly.com/uploads/1/3/2/6/132695560/906779f9a4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475872/normal_6007c765b923e.pdfIn PDF document text
    • https://cdn.sqhk.co/bujavenizake/axgjjir/word_games_online_for_seniors.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tifavamifikas.myartsonline.com/magic_school_bus_castle_episode.pdfIn PDF document text
    • http://pamixawikisif.epizy.com/final_consultation_meeting_template.pdfIn PDF document text
    • http://bumemelowogo.rf.gd/assassin_s_creed_odyssey_guide.pdfIn PDF document text
    • http://kubomefewofumim.atwebpages.com/pathfinder_adventure_card_game_wrath_of_the_righteous_character_sheets.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_off0000de98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE98 4820 bytes
SHA-256: b7ca84b23e2a164e3fb34104a40bc65550f17f08e06fe731e43fad068b4761e4
font_01_sfnt_off0000eee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEE5 10396 bytes
SHA-256: 262a6e886c940692cedc51e8123c7f83979fde99d003b04f48a6e1dc270c07dc