Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1c6a2152b03ff54…

MALICIOUS

PDF

66.7 KB Created: 2021-04-21 13:40:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51ac969bb25f88e4af59b4de3a34828a SHA-1: c937370289144375a8043314c35ec21fd314f57e SHA-256: c1c6a2152b03ff544f92e58f51cfd58752b0935ce4fdfa74d90032e873efdbce
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that redirects to a suspicious domain, likely for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to trick users into navigating to a malicious site, potentially leading to further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://pelibifir.ru/strik?utm_term=how+to+program+bmw+garage+door+opener+without+remote
    • https://cdn.sqhk.co/bokirebi/l1an1bd/blade_babji_telugu_movie.pdf
    • https://cdn-cms.f-static.net/uploads/4462726/normal_6052b79a5d07d.pdf
    • https://cdn.sqhk.co/wovegase/jhhjieK/sad_baby_girl_pic.pdf
    • http://pinerapidsrr.com/beethoven_ukulele_moonlight_sonata0hclj.pdf
    • http://vebugojedilu.iblogger.org/is_mustang_its_own_brand.pdf
    • https://cdn-cms.f-static.net/uploads/4454161/normal_60465d3349a5d.pdf
    • http://zuvowizetigeko.22web.org/asme_b31_4.pdf
    • http://detonic-ufficiale.website/kathmandu_nepal_imagesfmemw.pdf
    • http://istlan.space/how_to_lose_weight_well_mexican_diet_plan7uw6w.pdf
    • https://cdn.sqhk.co/viwitukaz/hdjjhb1/charging_by_induction_worksheet.pdf
    • http://retys.fun/baixar_jogos_para_ppsspp_gold_androidkxygn.pdf
    • https://cdn-cms.f-static.net/uploads/4415937/normal_60233e98d35bd.pdf
    • http://busurman.space/247277015890ix58.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://kajomeki.epizy.com/video_from_web_page_chrome_extension.pdf
    • https://s3.amazonaws.com/zulezov/45193869462.pdf
    • https://s3.amazonaws.com/fojaxexino/car_performance_shops_sheffield.pdf
    • https://s3.amazonaws.com/gewuwasi/65045179716.pdf
    • http://zarazemudaseri.epizy.com/98448521534.pdf
    • https://s3.amazonaws.com/lomogas/39871537733.pdf
    • https://s3.amazonaws.com/sutawowirosuvuv/lg_company_introduction.pdf
    • https://s3.amazonaws.com/tosego/what_exercises_can_i_do_with_stretch_bands.pdf
    • https://s3.amazonaws.com/sezebepit/32309195561.pdf
    • http://lokimutopilar.epizy.com/70532206426.pdf
    • https://s3.amazonaws.com/pusixa/jenugodowulagudanukek.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_off0000cb1b.bin
28e5de5d522e9bc8f23ae7549eeb3b6567bf57720ead51c2efc5d81ad731a987
pdf-font-stream PDF embedded font (sfnt) at offset 0xCB1B 5356 bytes
font_01_sfnt_off0000dd30.bin
9e3bf0c1e8bbac1af2067ecd0518ea468f4bb8904d1b76222c2452cb37b691d4
pdf-font-stream PDF embedded font (sfnt) at offset 0xDD30 9320 bytes