Malicious PDF — malware analysis report

Static analysis result for SHA-256 deb6b82828ca6df9…

MALICIOUS

PDF

63.0 KB Created: 2021-02-10 23:52:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 2233fa5c63fbbb4d2ad224bacfda4417 SHA-1: 520f43c0b10f2bb36d5107f8bcbc2307473ef9b3 SHA-256: deb6b82828ca6df99e547f8697e608f2113059471e33034dc1170545416779c5
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://druttle.ru/wb?keyword=vengeful%20spirit%20pdf PDF link annotation
    • http://repair-planshetov.ru/lovesiveretawitikunozgjzev.pdfIn PDF document text
    • http://natgood.space/bdd_story_templateb37ky.pdfIn PDF document text
    • http://japancar-sib.ru/48521010480dn0bq.pdfIn PDF document text
    • http://legko.travel/cuales_son_los_planos_anatomicoso562j.pdfIn PDF document text
    • http://tekchambre.xyz/84313934873qshub.pdfIn PDF document text
    • http://ttttrrrr.space/19533078693ymkww.pdfIn PDF document text
    • http://ita-bio.fun/88931918225jwpn1.pdfIn PDF document text
    • http://lorebip.22web.org/animated_fire_photoshop_action_free.pdfIn PDF document text
    • http://raisinsapp.club/cimbali_m20_manual_espresso_machinefqpcn.pdfIn PDF document text
    • http://monoga.space/download_mobile_gamepad_android8kiv5.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://nipimixo.epizy.com/todirow.pdfIn PDF document text
    • https://s3.amazonaws.com/lekizopiloref/alabama_state_tax_form_w_4.pdfIn PDF document text
    • http://defizal.epizy.com/depth_and_complexity_icons_unanswered_questions.pdfIn PDF document text
    • http://xarotuwegu.rf.gd/86512115728.pdfIn PDF document text
    • http://nuwikomoxiso.epizy.com/age_of_empires_2_byzantines_strategy_guide.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_off0000bc0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBC0E 4964 bytes
SHA-256: dfd9d5b38ea527872c04d72abfae0604ace4e242be474276a590a589a06c6520
font_01_sfnt_off0000cd15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD15 10060 bytes
SHA-256: 3014870e23f3ef8b5c3e99b71347cc19b929c4f1278881dcdddb32db72c00d9c