Malicious PDF — malware analysis report

Static analysis result for SHA-256 aadd1363c7209420…

MALICIOUS

PDF

75.2 KB Created: 2021-02-28 19:46:14 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 038f80cc86b766826fdc267f1f9cd205 SHA-1: b1ec5106884f383ab3fdb31927f4b7f0131ec8b0 SHA-256: aadd1363c72094208b73dd78352a5f1853095cca9de3bc2ea8d607a909a8be0b
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://nipisod.ru/123?utm_term=beethoven+piano+sonata+in+g+major+op+14+no+2 PDF link annotation
    • http://tupaxeguna.scienceontheweb.net/stephen_king_the_outsider_reviews.pdfIn PDF document text
    • http://detonic-deutschland.website/natinrjj7k.pdfIn PDF document text
    • http://wulutapebime.getenjoyment.net/how_to_put_a_needle_on_a_spore_syringe.pdfIn PDF document text
    • https://cdn.sqhk.co/samivegin/iihV7MU/video_voice_changer_fx_pro.pdfIn PDF document text
    • https://cdn.sqhk.co/dovoxukeni/gvZidnN/red_alert_we_make_events_orlando.pdfIn PDF document text
    • https://cdn.sqhk.co/gunonutib/ehgMMrE/vumefogoxiva.pdfIn PDF document text
    • http://tufofol.medianewsonline.com/86314596107.pdfIn PDF document text
    • http://rozujed.sportsontheweb.net/discipline_equals_freedom_book_depository.pdfIn PDF document text
    • https://cdn.sqhk.co/kidurukazag/TzDjgrw/mayrushart_roblox_bgs.pdfIn PDF document text
    • http://fijexojor.getenjoyment.net/panasonic_kx-tge274s_review.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/tamovagag/archimedes_principle_experiment_report.pdfIn PDF document text
    • https://s3.amazonaws.com/vanatul/40739643030.pdfIn PDF document text
    • https://s3.amazonaws.com/palikuvexake/mebemefexibepusum.pdfIn PDF document text
    • https://s3.amazonaws.com/vavapekadoliti/kesuwuzude.pdfIn PDF document text
    • https://s3.amazonaws.com/serogajugomiji/20560810457.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_off0000e64e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64E 5660 bytes
SHA-256: c6117e47c36e205e7184c7bf209d2482d6337d3295514decd0f006a12824be79
font_01_sfnt_off0000f97a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF97A 11544 bytes
SHA-256: f3c34e38deb93501a987ba12ff8a0f2a2c0ca89be324db27e36a4b5ecb824b48