Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab94ae9ad4cbf3eb…

MALICIOUS

PDF

80.0 KB Created: 2021-03-22 20:19:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1bc48b2d24d95a709ba7c11ed06fdcc7 SHA-1: 74b05ea200cec0efac42341b82109371068c640c SHA-256: ab94ae9ad4cbf3ebf4eb2ac7485eeb14cd7ae6999d85998a1ac94297e6bdbfd7
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that redirects to a suspicious domain, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the PDF content point towards a phishing lure designed to redirect users to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://druttle.ru/award?keyword=fuel+cells+and+batteries+pdf
    • http://axecheat6.xyz/liftmaster_41a5021-1c_remotea97xd.pdf
    • https://cdn.sqhk.co/dovawowo/Xjgvgfc/sports_car_and_bike_hd_wallpapers.pdf
    • https://cdn-cms.f-static.net/uploads/4468812/normal_5fe7883e8abbe.pdf
    • https://cdn-cms.f-static.net/uploads/4380380/normal_604cca7b3cef6.pdf
    • https://static.s123-cdn-static.com/uploads/4387921/normal_5fe07ed3789e2.pdf
    • https://cdn.sqhk.co/gopilufifeda/RRTjeif/banugilowigojekejodajanex.pdf
    • https://static.s123-cdn-static.com/uploads/4466408/normal_60038e75d14b0.pdf
    • https://cdn.sqhk.co/xotabuti/tijIjdF/84344083717.pdf
    • http://legionmone.xyz/sosoponejefitisefutdkd2.pdf
    • https://cdn.sqhk.co/rinulazopun/chfgg6k/74944275922.pdf
    • http://reduslim-ordina.site/advanced_english_grammar_in_hindi_free_downloadqmptt.pdf
    • http://myyshooop227.site/average_software_engineer_salary_in_seattle84o2q.pdf
    • https://static.s123-cdn-static.com/uploads/4384821/normal_5ffadec0695a5.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/wupixufekijax/ue_boom_2_mit_macbook_pro_verbinden.pdf
    • https://uploads.strikinglycdn.com/files/9482f45c-67cf-48f9-b080-be76f60bc1b9/how_to_make_dogs_tie.pdf
    • https://uploads.strikinglycdn.com/files/668eaf6f-d747-442c-98db-2833c2f07ab1/united_states_history_trivia_quiz.pdf
    • https://s3.amazonaws.com/fekife/record_of_employment_forms_ontario_canada.pdf
    • https://s3.amazonaws.com/jivuxo/94382363141.pdf
    • https://uploads.strikinglycdn.com/files/be617473-bbb8-4d40-ad7c-b7831aaa0d3f/59595793628.pdf
    • https://s3.amazonaws.com/wifiduxezo/678625964.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efbc.bin
d14020f1380b99a0a9b3bf66a7143b913e727fdf3e50ff7c1ff3ce60123ae635		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFBC 5016 bytes
font_01_sfnt_off000100c7.bin
578810c1f66b7baeb1725332b5a2d88295dcb911c7f926d7d08fcca87c787d78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100C7 10364 bytes
font_02_sfnt_off00012439.bin
ce7e2e230a41ba6fc2d7d2240890c8289d67876d84a3d076d67c0b48111c8230		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12439 4324 bytes

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