Malicious PDF — malware analysis report

Static analysis result for SHA-256 9379b5626fc69ba7…

MALICIOUS

PDF

71.0 KB Created: 2021-03-01 05:58:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: ad9eaf489e30a5b61893f32a335c5098 SHA-1: 7f025926f3c949f4a5325f1b7d17bdc828004c50 SHA-256: 9379b5626fc69ba73018bf4a20ecfdfb5067431d5a24fa60a280933737bd5fe9
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://gimoguvi.ru/wix?keyword=preterito+perfecto+worksheet PDF link annotation
    • http://xuziduliwilu.iblogger.org/clarinet_solo_sheet_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/ravuviwidi/iicKidP/32209183910.pdfIn PDF document text
    • https://cdn.sqhk.co/kevapaboxer/fgcsHbr/download_id90_travel_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422877/normal_5fdb2a3b03c14.pdfIn PDF document text
    • https://cdn.sqhk.co/wibononuve/DgjTtha/36334036235.pdfIn PDF document text
    • https://cdn.sqhk.co/tabewinudeka/fhdZggd/game_of_thrones_escape_room_budapest.pdfIn PDF document text
    • https://cdn.sqhk.co/xurajalijok/b3Bl67y/miraculous_crush_ladybug_et_cat_noir_match_3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419424/normal_5fcbbf15c231c.pdfIn PDF document text
    • https://cdn.sqhk.co/vipikunowi/hbgifgi/7th_continent_fear_the_devourers_review.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422658/normal_600fde80a9be0.pdfIn PDF document text
    • https://cdn.sqhk.co/vimexuda/kHichey/annoying_ringtones_for_iphone.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413225/normal_5ff175a9f3fc7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pidivatepijalaw.epizy.com/wanozemomopudefiwubazoj.pdfIn PDF document text
    • https://s3.amazonaws.com/zoromexemuzid/ads_b_flight_tracker_apk.pdfIn PDF document text
    • https://s3.amazonaws.com/dufekifaral/commissions_deviantart_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/nijudow/witobowifides.pdfIn PDF document text
    • http://sorubuvevamik.rf.gd/is_there_a_romeo_and_juliet_book.pdfIn PDF document text
    • http://vawunelevuwatex.epizy.com/digit_sum_codecademy_answer.pdfIn PDF document text
    • http://zepitomus.rf.gd/11715171945.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd24.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD24 4700 bytes
SHA-256: bd6ec18511bb27050f455b8257406cb47c959304c46f4cbcbc2fab87c661c257
font_01_sfnt_off0000dd49.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD49 10392 bytes
SHA-256: 06d816d79c4551fb099d350fb519ab6b7467e1d036c39ef0fb80c1324007a3f5
font_02_sfnt_off000100d9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x100D9 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e