Malicious PDF — malware analysis report

Static analysis result for SHA-256 faf5132c8e179bc8…

MALICIOUS

PDF

73.1 KB Created: 2021-03-09 19:16:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 191cfb71e93477898f83c92046d176ca SHA-1: b02c5113f63bcff1602907af0bef653b3612454d SHA-256: faf5132c8e179bc8713225cf91382046122d8ea1a835fb8b408852ceafcc7c52
96 Risk Score

Malware Insights

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

The file was identified as malicious by ML classifiers and ClamAV, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely used to deliver a secondary payload or conduct phishing. The document body, though heavily obfuscated, contains keywords related to the embedded URL, suggesting a lure for users to click the link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://resalured.ru/award?keyword=corellian+conflict+fleet+roster+pdf
    • http://voyazh-shina.com/what_does_a_baby_boy_mean_in_a_dreamlzv7q.pdf
    • http://resijunul.22web.org/rugakomagi.pdf
    • http://mnogoturov.com/vomunekuxus2qcls.pdf
    • https://cdn.sqhk.co/lilaxikixo/ajdSPRn/tafoxubukabifo.pdf
    • https://cdn.sqhk.co/penutizufib/elQZjfb/ludo_king_mod_apk_2020_download.pdf
    • http://zavarivaemvmeste.ru/aircraft_maintenance_engineer_colleges_in_canadaj2s6w.pdf
    • https://cdn.sqhk.co/sexifirume/ibIgdKI/katunowomolug.pdf
    • https://cdn.sqhk.co/zupololano/ciixGia/pin_diagram_of_ic_ne555.pdf
    • https://cdn.sqhk.co/nakunadubux/gehdgen/nililepedub.pdf
    • https://cdn.sqhk.co/leredupodeka/fijdnjh/url_video_player_apk_ad_free.pdf
    • https://cdn.sqhk.co/dogutadova/iifjcjg/summer_hair_colour_trends_2019.pdf
    • http://bowemesuzot.iblogger.org/vaasta_inder_beniwal_song.pdf
    • http://twenty-promo2020.ru/83228011993gwdlq.pdf
    • https://cdn.sqhk.co/zapimafe/ephcSn2/posinifumivu.pdf
    • https://cdn.sqhk.co/waboperunut/eOibaha/truth_or_dare_game_questions_for_girlfriend.pdf
    • http://sokfresh.fun/blockbuster_tv_show_questions_and_answersklum8.pdf
    • http://xigexuretinona.iblogger.org/the_horse_and_his_boy_free.pdf
    • https://cdn.sqhk.co/dugelabomaw/haTjbqU/41562015980.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/c6752daa-c713-4ab0-a4e7-b51d7468884a/vofirijakinexe.pdf
    • http://jixolekajes.rf.gd/free_printable_paper_border_templates.pdf
    • https://uploads.strikinglycdn.com/files/4be527e1-7070-4003-aebf-0b01529c57c2/how_the_grinch_stole_christmas_2000_movie_clips.pdf
    • https://uploads.strikinglycdn.com/files/0cdceebb-5711-4d2b-849a-28db5fbab412/saxon_math_course_3_teacher_manual.pdf
    • https://uploads.strikinglycdn.com/files/98225f38-866e-417b-90ef-24684561550d/intex_ultra_frame_pool_16x48.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_off0000e2a6.bin
a9c07ea30cadeab6ec181ba8a956bd279051e29e9657a05520792ca8cd28aa71		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE2A6 5052 bytes
font_01_sfnt_off0000f3e3.bin
00c915de6b50cb70722bc18a4f23d4fb9270a18f99c004fd94a7de893222a61b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF3E3 10144 bytes

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