Malicious PDF — malware analysis report

Static analysis result for SHA-256 d51e5612da42e49b…

MALICIOUS

PDF

102.3 KB Created: 2021-03-20 12:54:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 185301867e6cc365372be21eaa76a963 SHA-1: d5a48b0786c708e6ddc61c24a07709c1916be46f SHA-256: d51e5612da42e49ba4bc112c86542a44a91b761155724702860fd6064036370e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URI pointing to a malicious domain, likely intended to redirect the user to a phishing or malware distribution site. The ML classifier and ClamAV detection strongly indicate malicious intent. The document body, though heavily obfuscated, appears to reference 'five nights at freddy's 3 guide', suggesting a lure to attract victims.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://bologen.ru/wix?keyword=five+nights+at+freddy%2527s+3+guide
    • http://trenolgia.buzz/fatiminisopajitapalaviy5hvv.pdf
    • https://cdn.sqhk.co/vulovosovem/hfhieAZ/best_sudoku_online_games.pdf
    • http://kokolonesafu.getenjoyment.net/61618090027.pdf
    • https://cdn.sqhk.co/gixotagokezu/fjghgie/4404620976.pdf
    • http://malespw.xyz/74973380651360op.pdf
    • http://gomigapujasep.sportsontheweb.net/how_to_buy_a_franchise_of_burger_king_in_india.pdf
    • http://helpcenter.business/wugowomogobatuzetemoreslggp.pdf
    • http://save50it.info/maze_runner_novel_listh6lgx.pdf
    • https://cdn.sqhk.co/tusifefovozu/edPzhgN/mp3_player_download_music_youtube.pdf
    • http://autolombardpro.ru/mebogunenilepuraxet2em7l.pdf
    • https://cdn.sqhk.co/biwizalibe/ihjghgc/baby_lullaby_music_for_infants.pdf
    • http://ludesajezopaju.medianewsonline.com/diy_greenhouse_plans.pdf
    • http://olymp-trade.top/bolalerupekusotajagdb2.pdf
    • http://reduslim-europa.site/chips_ahoy_cookies_nutrition_informationvw0uo.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://wolawozel.epizy.com/sisadixutenuvoza.pdf
    • http://riveminigokoxa.myartsonline.com/20511281672.pdf
    • https://uploads.strikinglycdn.com/files/9e5a78b6-d744-4c72-b191-9afcb81ee44c/zeboletepegesivak.pdf
    • https://uploads.strikinglycdn.com/files/b5ef7e24-179f-4597-b598-4db075e477d5/lowrance_elite_5x_chirp_review.pdf
    • http://gofosuxubajo.epizy.com/casio_rangeman_gw9400_review.pdf
    • https://uploads.strikinglycdn.com/files/3746c6c9-f380-44ef-b953-8028bbd667c8/que_es_una_ficha_tcnica.pdf
    • https://uploads.strikinglycdn.com/files/0acb368f-f2bd-4599-944e-5104f8e2cea9/washington_dc_metro_map_app.pdf
    • https://uploads.strikinglycdn.com/files/58163e86-ff3b-47b1-8ef6-fa27c15dd3dd/what_is_electronic_media_in_urdu.pdf
    • http://fefisapuvekebi.epizy.com/32238113737.pdf
    • http://pexevogawi.epizy.com/kosufenekolitorarot.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000152f8.bin
cda59914957bc87d5cd143a930fdaf8e8ab6327e6fffc58544ab3aff07948bd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x152F8 5452 bytes
font_01_sfnt_off0001659f.bin
f3c8a06a2434013849f9b14b9d01f321cbd8d3e6cbaffee037f2a55f79909cfb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1659F 10772 bytes

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