Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d0cd02253bea3a8…

MALICIOUS

PDF

71.0 KB Created: 2021-02-11 16:04:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 418fb8e1ddaf88a1fc8a130bd5a254d8 SHA-1: cd197dcea49be87e0d1d1fe5753eb71fba46fbb0 SHA-256: 6d0cd02253bea3a86251dc5ba3f0d5f932855c6038240dd05f3d5f53c397650a
166 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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=harry+potter+hogwarts+mystery+apk+mod+ios PDF link annotation
    • http://dehydratedoriginalgoodness.com/dozipuwarorosatidukiwisiwkcrox.pdfIn PDF document text
    • http://legko.travel/jodha_akbar_serial_video_mp4t1oin.pdfIn PDF document text
    • https://cdn.sqhk.co/vadetegubufo/8BP6N3B/mountain_sniper_3d_shooter_download.pdfIn PDF document text
    • http://nekimul.22web.org/93462932310.pdfIn PDF document text
    • http://elerctum.org/bessie_head_the_collector_of_treasures_text4d7cv.pdfIn PDF document text
    • https://cdn.sqhk.co/vopunokapire/hjja5K5/rotator_cuff_exercises_for_elderly.pdfIn PDF document text
    • https://cdn.sqhk.co/xasakeza/jdmcXZx/73517081683.pdfIn PDF document text
    • http://xodulik.66ghz.com/d_d_character_sheet_5e.pdfIn PDF document text
    • https://cdn.sqhk.co/tilomulobet/4ZYvzVc/biwabamebaxanikero.pdfIn PDF document text
    • https://cdn.sqhk.co/pixafosabow/nChcjdj/tower_defense_generals_td.pdfIn PDF document text
    • http://kikudesazogug.22web.org/antares_autotune_5_vst_plugin_free.pdfIn PDF document text
    • http://goodnatural.space/gigulupixadozamepilgmj11.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bumojito.rf.gd/female_formal_dress_for_interview.pdfIn PDF document text
    • http://zumikatumisi.rf.gd/biosynthesis_of_bacterial_cell_wall.pdfIn PDF document text
    • http://xugibomexepef.rf.gd/jutotukabafeve.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_off0000d83a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD83A 5560 bytes
SHA-256: 19360af9dc458031e8244f8365f7f99afe99c17a80bed31f684cd18539ff68eb
font_01_sfnt_off0000eb12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB12 10492 bytes
SHA-256: d709b49469d0cac56d7d57291344a2c2677319a8dd4d87dee8bbf6035eda1249