Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c43c6d69d8fc34c…

MALICIOUS

PDF

78.0 KB Created: 2021-03-16 05:18:53 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: 432827291cfd63501057508e2d7fde01 SHA-1: c19a555002bf0dfdafd231d907c8a04fdc353683 SHA-256: 9c43c6d69d8fc34cbe751c7305e2f465a20aee48ba887e2887d5434229127ec3
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a malicious domain, which is a strong indicator of a phishing or malware distribution attempt. The ML classifier and ClamAV detection further confirm its malicious nature. The document body, though heavily obfuscated, appears to be a lure related to a Toshiba laptop manual, aiming to trick users into visiting the malicious URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://mezovuduw.ru/wix?keyword=toshiba+satellite+c55-c+manual PDF link annotation
    • https://cdn.sqhk.co/xijisejes/17Ohcje/vovafowosu.pdfIn PDF document text
    • https://cdn.sqhk.co/jebozibiru/e6P6Pgd/the_walking_dead_michonne_walkthrough.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/cbPzGMo/alchemy_365_uptown.pdfIn PDF document text
    • https://cdn.sqhk.co/zalenemu/hYifibX/disco_music_80_hits_playlist.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455681/normal_603b87a7d8d1b.pdfIn PDF document text
    • https://cdn.sqhk.co/metexemoraga/fijXZgf/chibi_anime_wolf_girl_drawing.pdfIn PDF document text
    • https://cdn.sqhk.co/duzupafuj/cT4jejg/what_does_fish_symbol_represent_in_christianity.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4384299/normal_60034238ce32a.pdfIn PDF document text
    • https://cdn.sqhk.co/fokodusi/gfcgjjd/pinball_pete_s_hours.pdfIn PDF document text
    • https://cdn.sqhk.co/revinoxu/hzuBghi/sun_easy_racer_recumbent.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4390056/normal_60128e3eca04d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4404757/normal_5feaf0789a245.pdfIn PDF document text
    • https://cdn.sqhk.co/zexetiminav/txZGhgK/duxexolilobimusabi.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/23aa6768-affd-4a92-ac64-8b96d18971e6/what_do_cherry_trees_look_like_in_summer.pdfIn PDF document text
    • https://s3.amazonaws.com/xugigabitulu/popumutijagamutuvo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2be30eb4-560e-491e-b809-4dd5de35bfa5/fitness_first_weight_loss_program.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a0ec5d51-622f-4711-8674-601bf5ccc7c3/petasorejujudalebepu.pdfIn PDF document text
    • https://s3.amazonaws.com/bidivo/trick_to_shutterstock_images_without_watermark.pdfIn PDF document text
    • https://s3.amazonaws.com/wefemabeni/schedule_mn_drivers_road_test.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4613df73-e860-4e31-8e60-edeab9cdacb2/24027879127.pdfIn PDF document text
    • https://s3.amazonaws.com/wamatasamegu/what_is_the_plot_of_the_story_hansel_and_gretel.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_off0000f3f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F6 5188 bytes
SHA-256: 5e8af1fb4a400f1f1754de28a232401efbb9d27333ebc2fd60b8e91e6bbd43a2
font_01_sfnt_off00010582.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10582 10856 bytes
SHA-256: 44f97df38956530813051bfc28fddfffe52fd7b8ddb30efbd7ae9b41b11cfe8f

Open this report in the interactive analyzer, or submit your own file for analysis.