Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae3310a4eaeecede…

MALICIOUS

PDF

72.2 KB Created: 2021-02-11 14:40:08 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 5cab5d30731602b832f8f6a3713b49f1 SHA-1: 2628d08aa7175fa9058a81a50b28c94efb76098a SHA-256: ae3310a4eaeecedebb4c9853c0ca7dd432beb515ffac840e1b8fa5a1d13d0f18
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://maypoin.ru/wix?keyword=diablo+3+manual+pdf PDF link annotation
    • https://guzepebizosi.weebly.com/uploads/1/3/4/8/134880367/daneliriwi.pdfIn PDF document text
    • http://hydraruzxpnew4af.exchange/new_york_times_crossword_puzzles_answersei7b9.pdfIn PDF document text
    • https://cdn.sqhk.co/mikakiraw/zigQhiT/samurai_flash_game.pdfIn PDF document text
    • http://dorightschool.com/clash_royale_hackersq3qhl.pdfIn PDF document text
    • https://cdn.sqhk.co/matijamaj/iaicgfc/guzexotoxorozakakunuweje.pdfIn PDF document text
    • https://gokixojegesefa.weebly.com/uploads/1/3/4/8/134864476/kebifixorinov.pdfIn PDF document text
    • https://cdn.sqhk.co/filumabit/gjeehfG/3204467787.pdfIn PDF document text
    • http://niwapona.iblogger.org/aadat_ninja_punjabi_song_mp4.pdfIn PDF document text
    • https://cdn.sqhk.co/gukugifixija/ejcgehg/paladone_duck_shoot_carnival_and_fair_interactive_game.pdfIn PDF document text
    • https://fefirewaw.weebly.com/uploads/1/3/0/7/130775199/d025c9de.pdfIn PDF document text
    • https://nuzunovi.weebly.com/uploads/1/3/5/3/135314570/1579b7.pdfIn PDF document text
    • https://cdn.sqhk.co/jirudumom/ggiehg0/ted_cruz_beard_2020.pdfIn PDF document text
    • http://legexenajulejof.iblogger.org/top_bollywood_songs_zip_file_2017.pdfIn PDF document text
    • http://virepidutajal.iblogger.org/28535470489.pdfIn PDF document text
    • https://cdn.sqhk.co/dowusutitozi/zjdiejf/sago_mini_holiday_trucks_and_diggers_apk.pdfIn PDF document text
    • https://lotekovikerux.weebly.com/uploads/1/3/1/3/131398560/livun-rubak-zurinufaze.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://favuzokusom.rf.gd/fastest_fishing_guide_osrs.pdfIn PDF document text
    • http://waxodomopupu.epizy.com/3893484684.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_off0000df55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF55 5216 bytes
SHA-256: 3a5dafeb0bd579013601f8ea47ca84c0395897589e6cb46122fa233d6c678a48
font_01_sfnt_off0000f107.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF107 10240 bytes
SHA-256: b3206c1a966047fbfaa2afda8bcf268db95a5558fda0e0d109232b228bdd0328

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