Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5cf8ca2a1e1fee7…

MALICIOUS

PDF

72.7 KB Created: 2021-02-22 15:06:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 011ff866c89112b9aea1ea5248d11fce SHA-1: 98fd23331529787035f498e7d6ee1449549c5052 SHA-256: e5cf8ca2a1e1fee7945681d049960b9867541da99f2f86ac8fb756a15ba0e81e
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/wix?keyword=flip+words+answers+list PDF link annotation
    • http://the-glow.ru/flightview_free_flight_tracker_apk35j5d.pdfIn PDF document text
    • http://gnatural.space/symptom_management_mental_illness_worksheets8a424.pdfIn PDF document text
    • https://mimudokax.weebly.com/uploads/1/3/4/7/134742140/3910699f304c3.pdfIn PDF document text
    • http://vigastlens.xyz/my_lg_g6_will_not_turn_onka6uo.pdfIn PDF document text
    • http://weraka.online/348908125548i73f.pdfIn PDF document text
    • http://wonnaturila.space/bharat_songs_on_mingcbbwe.pdfIn PDF document text
    • http://yarrebitteh.online/tumutdr87l.pdfIn PDF document text
    • http://bostpolamos.site/7259272253061n4k.pdfIn PDF document text
    • http://betflixguvenilirmi.com/best_answers_for_what_are_your_strengthsr64np.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lezujepadu.rf.gd/codycross_answers_group_109_puzzle_2.pdfIn PDF document text
    • https://s3.amazonaws.com/lusegokaves/castleford_tigers_former_players.pdfIn PDF document text
    • http://fesenobonirizu.epizy.com/que_es_expresion_corporal.pdfIn PDF document text
    • http://bidexegope.epizy.com/blank_monthly_calendar_template_february_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/bokofapig/90969647718.pdfIn PDF document text
    • http://tudutov.rf.gd/silugelexapejada.pdfIn PDF document text
    • http://diribiboturo.epizy.com/venapozakikoxiwiletam.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_off0000e11f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE11F 5000 bytes
SHA-256: 13b812a358dc492f2e5bdc17c8c9869432d24250dfe648d655fcc14d71ad7623
font_01_sfnt_off0000f23e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF23E 10360 bytes
SHA-256: d041e63bf6b1f161784472014c7987e60b109236e05b6111f6187bea47b4db5a