Malicious PDF — malware analysis report

Static analysis result for SHA-256 0725b13b9df9ece3…

MALICIOUS

PDF

70.7 KB Created: 2021-03-15 09:05:54 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 0cb761f828572d018ff6449221e1fa26 SHA-1: 17495351f4aacd7e3e7a24ea7599b249f1adc4df SHA-256: 0725b13b9df9ece3aa024f66d0ae3818758eb4e2f576cf84cd325777226058d9
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 0.9991

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/strik?utm_term=wayne+dalton+residential+garage+doors+prices PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4377647/normal_603920c1ba66f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4465274/normal_5fcf51ba2fba1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483602/normal_5fc7dd2e025c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369659/normal_604ccbe22c041.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375358/normal_60184ee8abae0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389801/normal_60006b88278ca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4502817/normal_6042f75c912c9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451742/normal_60415c7925179.pdfIn PDF document text
    • http://wowonofejubudib.iblogger.org/auto_battery_fitment_guide.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374199/normal_5fcd007f44bbd.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/suxuzubojut/89670960811.pdfIn PDF document text
    • http://fagajewajemanov.epizy.com/bonding_basics_ionic_bonds_worksheet_key.pdfIn PDF document text
    • https://s3.amazonaws.com/gimufesajo/16694265432.pdfIn PDF document text
    • https://s3.amazonaws.com/jutenojamega/fuxevolojimedus.pdfIn PDF document text
    • https://s3.amazonaws.com/pivetuzadujo/aalala_kanda_hd_video_song.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5b0c0d22-2de6-4fde-8938-0e9f276138b7/55046773656.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b638aef9-0b33-44ce-be4b-e65b8af418d2/53054216244.pdfIn PDF document text
    • https://s3.amazonaws.com/bevarolimesale/hot_air_balloon_vector.pdfIn PDF document text
    • https://s3.amazonaws.com/toliwudalamem/whos_afraid_of_virginia_woolf_movie_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/89bafa72-8b00-4bf5-b171-5921f2cc5903/basic_sentence_structure_exercises.pdfIn PDF document text
    • http://giwuvupajot.epizy.com/malazan_book_word_count.pdfIn PDF document text
    • http://duronudisibap.rf.gd/an_apology_for_poetry_full_text.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/scag_tiger_cub_manual.pdfIn PDF document text
    • http://rebopugosive.rf.gd/vokowovilepazekebu.pdfIn PDF document text
    • https://s3.amazonaws.com/tasufagijaremo/19126683540.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_off0000d847.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD847 5356 bytes
SHA-256: 5b9b143c86279e86270f019b888e9e8cdbe0d7132c5cb471d5f2d526ba91701b
font_01_sfnt_off0000eaa5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEAA5 9992 bytes
SHA-256: 7d7fb3e275d144c35ea0d82b61852140d42599b2e0669c885c77433803c97dab

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