Malicious PDF — malware analysis report

Static analysis result for SHA-256 94fa63eabebd0b45…

MALICIOUS

PDF

76.0 KB Created: 2021-03-09 05:18:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: c31663d53732c190210c4aee2cd7fb08 SHA-1: e7a755876a59df104c916e3d731c6b4e0c2e9609 SHA-256: 94fa63eabebd0b457673fe6e553edb235c4a00d01d75b8e9d811c12d85d3e19c
96 Risk Score

Malware Insights

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

The sample was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, which is a common tactic for phishing or malware delivery. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to redirect users to malicious 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://kuzutuzo.ru/123?utm_term=android+sensormanager+type_accelerometer PDF link annotation
    • http://avbox.org/qr_scanner_iphone_53hhtq.pdfIn PDF document text
    • http://xijulefabogi.getenjoyment.net/58677021479.pdfIn PDF document text
    • http://raffle.website/razowakezapamuwouz2h2.pdfIn PDF document text
    • http://unreguezff.rest/758058628522vwa8.pdfIn PDF document text
    • http://goodshopsales.xyz/sony_rmt_d197a_tv_codessde7q.pdfIn PDF document text
    • http://xajabuzowa.scienceontheweb.net/make_your_own_python_text_adventure_a_guide_to_learning_programming.pdfIn PDF document text
    • http://silkhfig.bid/exosuit_high_capacity_inventory5m0ph.pdfIn PDF document text
    • http://pristav.pro/yellow_submarine_ukulele_tab3z8u6.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/muvojugejoxip/bofixe.pdfIn PDF document text
    • https://s3.amazonaws.com/pogolo/65325662086.pdfIn PDF document text
    • https://s3.amazonaws.com/dobesogum/blow_horn_video_song_free.pdfIn PDF document text
    • https://s3.amazonaws.com/sorogamat/77641160420.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/128fb3db-c824-4657-b3c8-798b6358c60b/how_to_start_ionic_app_development.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/139976cc-54f6-4a74-b19d-46e4bc592afe/9601442072.pdfIn PDF document text
    • https://s3.amazonaws.com/bajapovogam/97698789550.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8de9b8f7-05fd-4116-ae2f-ca7e07ff5003/8938773383.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/88635715389.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b4d0f77-876b-4238-8710-d960ba7af8dc/what_time_does_stock_market_open_and_close_in_california.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_off0000ea55.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA55 5512 bytes
SHA-256: d0bdb82ebb626bdf6f00920f660a3e5868e420fb70adf88ab9851afb88dd5494
font_01_sfnt_off0000fd14.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD14 11092 bytes
SHA-256: ef7070a4b08758bb0b87abaa03ccfa419a595e2a568aeacc17262804f50996ce

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