Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e063d8967bff7ca…

MALICIOUS

PDF

75.7 KB Created: 2021-03-15 18:08:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 32832d2c1381215d71fb1780ea644533 SHA-1: 278fb1af2cfcb0a0686910682af42a316a5c4eeb SHA-256: 4e063d8967bff7caebb9a30d2e84c3cbff3b6ff9fd67c4be9aefe66baecc9373
96 Risk Score

Malware Insights

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

The file is identified as a malicious PDF by multiple heuristics, including a high-confidence ML classifier and ClamAV detection. It contains embedded URIs pointing to external websites, suggesting a phishing or credential harvesting attempt. The presence of these external links and the overall classification strongly indicate a malicious intent, likely to redirect users to a compromised or phishing site.

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://xezojetit.ru/123?utm_term=only+alphanumeric+characters+are+allowed+in+answer
    • https://xowimigijik.weebly.com/uploads/1/3/1/6/131637135/9629359.pdf
    • http://gizovivomiz.getenjoyment.net/commanding_your_morning_devotional.pdf
    • http://italylife.pro/32074861229q0r8o.pdf
    • http://fofolep.mywebcommunity.org/james_and_the_giant_peach_chapter_20_summary.pdf
    • http://kimokabif.medianewsonline.com/monster_350ml_price.pdf
    • http://dawexefif.getenjoyment.net/4577552936.pdf
    • http://help-verification.com/limitations_of_non_conventional_energy_sourcesiso92.pdf
    • http://sutarakikim.scienceontheweb.net/wopemuramikipana.pdf
    • http://bukupiduge.mypressonline.com/girewunabuj.pdf
    • http://wijetaz.mypressonline.com/harry_potter_book_series_illustrated.pdf
    • http://kinoxca.xyz/wunder_von_bern_dopingi8d5q.pdf
    • http://wivuperafuzo.mypressonline.com/zunatafufavofenime.pdf
    • http://xagakojitogiva.getenjoyment.net/bilanzanalyse_beispiel.pdf
    • http://sigisuzuk.getenjoyment.net/tuzufavanu.pdf
    • http://mybiol.site/jevozelivizurobii4tp4.pdf
    • http://andyhong.blog/poxewqvo7q.pdf
    • https://fopabitibomasad.weebly.com/uploads/1/3/1/8/131857723/zisaxabuniteka-gizurijibox-doruxup.pdf
    • http://dujojiwasemob.mywebcommunity.org/26879466323.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://uploads.strikinglycdn.com/files/164a1022-e134-4cc2-9d1e-6197ff544874/sufufuvokifekapog.pdf
    • https://uploads.strikinglycdn.com/files/0e9227b0-49b0-4791-8b1c-618dc14ff729/where_are_your_milk_glands_located.pdf
    • https://uploads.strikinglycdn.com/files/b1418aa6-7797-4bfe-bb70-05856be325eb/54020771808.pdf
    • https://uploads.strikinglycdn.com/files/d4018939-c713-4bb2-b36a-c79738e751b1/the_house_that_has_clocks_in_its_walls_cast.pdf
    • https://uploads.strikinglycdn.com/files/a5811d4b-b001-4aa7-8283-875815c2cd45/meaning_of_woe_is_me_in_the_bible.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_off0000d915.bin
73ed68c1597a66a399194b81057ceadf2f6872ad8d42e4f574bfd9dd5e5e772c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD915 5416 bytes
font_01_sfnt_off0000eb62.bin
1ffacbf1cc7530114c754b1c42b0d75f10f71ad1f5df5144e6313dd3e7c022b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB62 11592 bytes
font_02_sfnt_off0001130a.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1130A 4324 bytes

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