Malicious PDF — malware analysis report

Static analysis result for SHA-256 5035d31fda8990f8…

MALICIOUS

PDF

71.9 KB Created: 2021-02-13 07:05:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 66d39a8982057371b2ceaca9c78b5e3d SHA-1: 54e8291f42e4ef11c7dc5b36781ca799febe0a69 SHA-256: 5035d31fda8990f8f8cc577bd3af6c2b1bf8144c653e30f2ef186cf37b3edbe6
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://leonvi.ru/wix?keyword=showbox+apk+2019+android+official PDF link annotation
    • http://vemasujananexu.22web.org/free_vpn_for_china.pdfIn PDF document text
    • https://cdn.sqhk.co/gavezexu/eZPugcA/lock_screen_wallpaper_changer_apk_download.pdfIn PDF document text
    • https://cdn.sqhk.co/mexovaru/jieVhbk/who_is_christian_grey_based_on.pdfIn PDF document text
    • https://cdn.sqhk.co/desiruzag/Njfiehw/troom_troom_en_espanol_munecas.pdfIn PDF document text
    • http://gadifurewurol.22web.org/elina_pilates_cadillac_reformer.pdfIn PDF document text
    • https://cdn.sqhk.co/zebenane/cZ1gcie/notered.pdfIn PDF document text
    • https://cdn.sqhk.co/fuluzagile/0jdEgiG/38785505030.pdfIn PDF document text
    • https://cdn.sqhk.co/zodozane/Ihdhfgf/49865254391.pdfIn PDF document text
    • https://cdn.sqhk.co/rakapuvad/5zigjhC/albee_baby_phone_number.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4417998/normal_5ff3c7fe5b181.pdfIn PDF document text
    • https://cdn.sqhk.co/pixefavenar/cRbnjfE/khan_academy_mcat_notes_physics.pdfIn PDF document text
    • http://disetikala.22web.org/tevorufufezijonasu.pdfIn PDF document text
    • https://cdn.sqhk.co/wukomidekepu/7hdwuic/walking_dead_cast_still_alive.pdfIn PDF document text
    • http://xokodiraki.22web.org/east_coast_saltwater_fishing_reports.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://gawekavadave.epizy.com/21742805601.pdfIn PDF document text
    • http://jobifizokugo.rf.gd/malewimujomunokuj.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_off0000cce4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCE4 5604 bytes
SHA-256: df6269893a8bb4bcb5919ab895738b4a23ef7b1a5cc154fac3eb0842262f737d
font_01_sfnt_off0000dfe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFE9 10780 bytes
SHA-256: 424aaaebea38e53570a7c2ae9f833ecadc268f508d94f15801e7cf16d6a109d0
font_02_sfnt_off0001047f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1047F 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378