Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7d15b64a9411e43…

MALICIOUS

PDF

74.5 KB Created: 2021-04-09 11:25:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d757d591799f558737822c16d7ee9490 SHA-1: 10e50580da6d94729f1e66e895815d564174698b SHA-256: b7d15b64a9411e43e33d6660d0f444c2fbb8de4a2480149a38c51f3efae84104
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://jumiwimov.ru/strik?utm_term=what+is+cupid+and+psyche+all+about PDF link annotation
    • http://meetcabinets.xyz/ntr_aradhana_video_songs1pxx5.pdfIn PDF document text
    • http://goldenframecollision.com/877961292285oj58.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/5cbbff24-bf43-4a61-8d87-2abefc47392e/82055927979.pdfIn PDF document text
    • https://s3.amazonaws.com/jukoxisojow/chicago_manual_of_style_book_citation_example.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/xofulu.pdfIn PDF document text
    • https://s3.amazonaws.com/sedimeraxufi/bluestacks_3._56_74.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/952f0cee-7dd2-45db-b4b7-c90cc8f92fd1/warcraft_3_reforged_classic_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/077d11df-9f1a-49e3-b5ab-ed6aad2ad1ab/world_map_quiz_game_app.pdfIn PDF document text
    • https://s3.amazonaws.com/xukanomarexumu/fuxulano.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d8a4f785-4d62-4f1e-a747-443666679ea8/84425764339.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0eec88ad-652d-4614-bbec-67fc3bdb92d9/how_to_get_splat_hair_dye_out_of_your_hair.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/why_is_starcraft_2_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/73bade45-b803-414d-b370-210b84645bd4/59360688491.pdfIn PDF document text
    • https://s3.amazonaws.com/rekawexuretowo/ckd_guidelines_nice.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b8f33e18-cdcd-4a36-b1b9-71467ea25c56/hp_photosmart_d110_printer_not_printing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4ec5bdd7-324b-4fbb-a7ae-741e8e24ef01/meltdown_anti_deep_freeze_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/tesotiwapax/geronimo_stilton_movie_trailer.pdfIn PDF document text
    • https://s3.amazonaws.com/tixedujegibex/tippmann_a5_custom_parts.pdfIn PDF document text
    • https://s3.amazonaws.com/divelatoxa/birod.pdfIn PDF document text
    • https://s3.amazonaws.com/kotenu/canon_mx430_wireless_setup.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_off0000e6bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE6BB 5320 bytes
SHA-256: 39044ebfd50d43f99e9d6bd9687de6d8214bec3b8f6edb4eade809ade664e051
font_01_sfnt_off0000f8e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8E0 10544 bytes
SHA-256: 3b868780aa61a1476a977b0649808e480b52cd191644de7eb39cd0924617415c

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