Malicious PDF — malware analysis report

Static analysis result for SHA-256 30f8eeba2545ee44…

MALICIOUS

PDF

71.3 KB Created: 2021-02-15 01:39:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 87a774adbb440c5ab52e2fffd44ac419 SHA-1: a3c8d7637ddbd07fdafa7b5348ddfd7c5e423f51 SHA-256: 30f8eeba2545ee44334585bc7eaf0c864fa93699baef7068a935b5b861c4b59e
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://jottigo.ru/wix?keyword=pitchlab+lite+pro+apk PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4487186/normal_600ce867e016a.pdfIn PDF document text
    • https://cdn.sqhk.co/duditizonut/JZrjj3W/wonusilutekabu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368249/normal_6021117b02de7.pdfIn PDF document text
    • https://cdn.sqhk.co/vowibesep/Nbsjfij/viruses_are_alive_because.pdfIn PDF document text
    • https://cdn.sqhk.co/meradipuwiz/iezieha/zombie_tower_defense_idle_game.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421768/normal_6022bfe3a7b0b.pdfIn PDF document text
    • https://cdn.sqhk.co/joxomawezu/jfjcTjh/konij.pdfIn PDF document text
    • https://cdn.sqhk.co/xanuramalu/hbhf1Qr/97252188026.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://sikofus.epizy.com/best_battery_care_for_android.pdfIn PDF document text
    • http://rusozetowozo.epizy.com/29228938641.pdfIn PDF document text
    • http://jolavewavesuj.epizy.com/tb_meningitis_treatment.pdfIn PDF document text
    • http://nuvebuxuloruvux.epizy.com/38644963918.pdfIn PDF document text
    • http://kugugoroxe.rf.gd/cheat_sheet_for_performance_review.pdfIn PDF document text
    • http://waruzav.epizy.com/tejowesanimuwosojuseg.pdfIn PDF document text
    • https://s3.amazonaws.com/punagilelabon/lenov._ru_game_mod_apk.pdfIn PDF document text
    • http://sovizaz.epizy.com/mysql_coalesce_vs_isnull_performance.pdfIn PDF document text
    • http://jofosomorigifo.rf.gd/latest_bittorrent_filehippo.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000c5bc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC5BC 5048 bytes
SHA-256: 82a899e73ee9b72978dab3ebe6ecda5d942dedd91e5ad6a0b620e26d9dc715e9
font_01_sfnt_off0000d6e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6E5 10420 bytes
SHA-256: d00bd124cbe4da952ef0f4fed01ed95d928280511e9068fae634b209766fd3e6
font_02_sfnt_off0000faaa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAAA 16188 bytes
SHA-256: 8d40aebc894c7bdb8a8880f8604e28cb2b411ecd3b774e82919f03a93c583d23