Malicious PDF — malware analysis report

Static analysis result for SHA-256 13d8fb8fac7a6ca2…

MALICIOUS

PDF

71.9 KB Created: 2021-02-25 02:36:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 27bd96556c224fdbedd74ed7e9cd5d61 SHA-1: fe93de3d1c311467ba0aed004ed612a0bd125350 SHA-256: 13d8fb8fac7a6ca2adc34deee28d35ebf9c078457564b3a7bcf9a3a9d186b6a1
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://bologen.ru/award?keyword=krups+waffle+maker+recipe+book PDF link annotation
    • https://cdn.sqhk.co/sifilefu/65gdRhh/download_game_mod_join_clash_3d.pdfIn PDF document text
    • https://vikurevago.weebly.com/uploads/1/3/1/6/131606257/273469.pdfIn PDF document text
    • https://cdn.sqhk.co/nogorodizet/dhgibge/zen_pinball_2_free_tables.pdfIn PDF document text
    • http://perevod24-card2card.site/vegarawumugafivufeledioq1dm.pdfIn PDF document text
    • http://xuxetosufuzo.getenjoyment.net/wafagegowewasapijifozam.pdfIn PDF document text
    • https://cdn.sqhk.co/kujotukil/0je2Bhc/game_capture_xbox_one_x.pdfIn PDF document text
    • http://winovigamaj.mygamesonline.org/78148695176.pdfIn PDF document text
    • https://sebinegovana.weebly.com/uploads/1/3/4/0/134095930/5686d4897a7d46e.pdfIn PDF document text
    • http://sidegut.22web.org/airpods_android_battery.pdfIn PDF document text
    • https://ponutafozo.weebly.com/uploads/1/3/4/7/134705240/wuwatupawawo.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jasunusemoki.onlinewebshop.net/what_is_ms_word_format_resume.pdfIn PDF document text
    • http://nesowoxaxisaxa.rf.gd/wivapuzogedotoje.pdfIn PDF document text
    • http://birotizedu.epizy.com/benazepril_dosage_forms.pdfIn PDF document text
    • http://wojegopuda.rf.gd/nakonenapuzun.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_off0000dc8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC8F 5424 bytes
SHA-256: bf1d258c5e19e2123855bcb854ba7ba8c2d1c16ad12820cf2bc85162b33265d7
font_01_sfnt_off0000eefe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEEFE 10412 bytes
SHA-256: 59b48697c8a126d9427f877f44015c0b264ad8c00d7cc579c13f238430cdd7be