Malicious PDF — malware analysis report

Static analysis result for SHA-256 814cc88cafb97e4b…

MALICIOUS

PDF

74.9 KB Created: 2021-02-16 17:28:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-13
MD5: 63d8def3fcfb940f7181535254fcc2cb SHA-1: a9d8da77bcc43e89e13b58ee9ffc4a56381fd88a SHA-256: 814cc88cafb97e4be3433b989013e78e2531b2877df7ba7726613439a0eb9d41
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a malicious domain, likely intended to deliver a payload or phish credentials. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://seumenha.ru/wix?keyword=unblocked+games+vex PDF link annotation
    • http://lotsmen.com/aambala_ringtone_songs_masstamilanac8be.pdfIn PDF document text
    • http://remont-pc.website/45446529892cwuno.pdfIn PDF document text
    • https://gimelasu.weebly.com/uploads/1/3/4/5/134513778/9340648.pdfIn PDF document text
    • https://mavosawiki.weebly.com/uploads/1/3/1/1/131163846/kizilozemiroridere.pdfIn PDF document text
    • https://jodegometokak.weebly.com/uploads/1/3/1/6/131606115/429f4a69804e47.pdfIn PDF document text
    • https://kajuzenutojaso.weebly.com/uploads/1/3/4/6/134631714/tebewe-sozerujivaxoraf.pdfIn PDF document text
    • http://bestita.space/walkthrough_final_fantasy_iii_bahasa_indonesiaib0ot.pdfIn PDF document text
    • https://cdn.sqhk.co/jozazixefuf/ZWpighj/ultimate_shark_simulator_all_bosses.pdfIn PDF document text
    • http://wersita.fun/calvin_and_hobbes_snowmen_crossing2tyln.pdfIn PDF document text
    • https://poperetaro.weebly.com/uploads/1/3/4/8/134893078/sazago.pdfIn PDF document text
    • https://cdn.sqhk.co/gipudeviwapi/hiyicZM/need_for_car_racing_real_speed_apk.pdfIn PDF document text
    • http://fsfsfd.xyz/30604979210icuq1.pdfIn PDF document text
    • https://cdn.sqhk.co/laripikiwafo/cIugdWY/bayer_contour_meter_kit.pdfIn PDF document text
    • http://shoop-fk.ru/tiforikemuresipunwf.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
    • https://s3.amazonaws.com/mujevubutukoxu/report_illegal_dumping_durban.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/bomberman_2_game.pdfIn PDF document text
    • https://s3.amazonaws.com/sojuravewi/scratch_programming_tutorial.pdfIn PDF document text
    • https://s3.amazonaws.com/golepe/cursive_letter_formation_worksheets.pdfIn PDF document text
    • https://s3.amazonaws.com/tobobowu/84333769300.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_off0000dc39.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC39 5144 bytes
SHA-256: 7d66592f521cbb7923790352feed7bc617227dd0db95085ec24449c339552c8d
font_01_sfnt_off0000eda4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDA4 10276 bytes
SHA-256: d4212b826c765d02a84924c71ce8c5bd3fcd2996327029757c86a127aac948ec
font_02_sfnt_off000110d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110D1 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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