Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d1dc257254b1a34…

MALICIOUS

PDF

69.7 KB Created: 2021-02-22 15:58:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: b66443c0670e8875e309964f331f832e SHA-1: 79d9d91f71950b38cdac901ea9258a9c2fe82827 SHA-256: 0d1dc257254b1a34b6fca4194704e3edcdcb2c055b633336dba444c279b22733
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://baarspo.ru/123?utm_term=kinetico+water+softener+system+maintenance PDF link annotation
    • https://cdn.sqhk.co/tejikeluz/eiiidih/top_speed_formula_car_racing_hack_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/wisaputal/3Rhbhgg/button_up_short_sleeve_shirts_womens.pdfIn PDF document text
    • http://nutapobo.iblogger.org/82449976643.pdfIn PDF document text
    • https://penoruzeni.weebly.com/uploads/1/3/4/1/134132400/ce82c19c6f.pdfIn PDF document text
    • https://tivirubopif.weebly.com/uploads/1/3/1/4/131406506/38cf50a9d0.pdfIn PDF document text
    • https://cdn.sqhk.co/verexoleki/YNhbvaL/sms_forwarding_app.pdfIn PDF document text
    • http://s-tochka.ru/46144461395ou332.pdfIn PDF document text
    • https://rofoxanubojinud.weebly.com/uploads/1/3/2/7/132740779/gopomopetex.pdfIn PDF document text
    • http://savadaqwe.space/boss_katana_50_manualx5eui.pdfIn PDF document text
    • http://supsun-aero.com/betano_app_androiddqdim.pdfIn PDF document text
    • http://telgrm.site/boyds_bears_value_guide_2019hvcxy.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/figugipopar/92811247299.pdfIn PDF document text
    • http://vapovalexuma.epizy.com/android_app_browser_engine.pdfIn PDF document text
    • http://nemunuj.rf.gd/sumedexubarogemase.pdfIn PDF document text
    • https://s3.amazonaws.com/wufujudisu/delivering_the_goods_reading_answer_with_location.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_off0000d547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD547 5160 bytes
SHA-256: cca48146292b117ebea2dc7413448cc0bb2b0359c47bbc59c6881d3f2ab0d0b5
font_01_sfnt_off0000e6e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6E1 10216 bytes
SHA-256: 2ac88e55313e7633f0bdf56b21bb6889eb5abf735a6852bb04af6aab7b7b280f