Malicious PDF — malware analysis report

Static analysis result for SHA-256 d095ca2a6f4b586b…

MALICIOUS

PDF

77.3 KB Created: 2021-03-10 19:11:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58141d354b8942f1d98ba5f93c4cf654 SHA-1: bb13f2720ff6cedca2c76ac712a516d2007b613a SHA-256: d095ca2a6f4b586bee73a651ef49eee975a793ba22e932797ca3033d8611cdde
96 Risk Score

Malware Insights

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

The file is a PDF document that contains an embedded URL pointing to a potentially malicious domain. ClamAV and ML classifiers flagged this PDF as malicious, indicating a phishing or trojan-like behavior. The document body, though heavily obfuscated, suggests a lure related to a service manual, aligning with common phishing tactics.

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://fokemale.ru/wix?keyword=maytag+mhwe251yg00+service+manual
    • https://cdn.sqhk.co/wakivunet/jeiikcQ/strategic_management_journal_acceptance_rate.pdf
    • https://static.s123-cdn-static.com/uploads/4417123/normal_5fdfc834e92ea.pdf
    • https://cdn-cms.f-static.net/uploads/4456387/normal_6031eabcd0c17.pdf
    • https://cdn-cms.f-static.net/uploads/4383804/normal_601199e1e062a.pdf
    • https://cdn.sqhk.co/jojojidatun/eghiggd/fimubeg.pdf
    • http://rasudilikid.mywebcommunity.org/wexevim.pdf
    • https://cdn.sqhk.co/lipetebo/jMiaAhi/amazon_prime_video_subscription_manage.pdf
    • https://cdn-cms.f-static.net/uploads/4410204/normal_6016c43d52026.pdf
    • https://cdn-cms.f-static.net/uploads/4369912/normal_600f13822df51.pdf
    • https://cdn-cms.f-static.net/uploads/4375087/normal_6023cff648ed2.pdf
    • https://cdn-cms.f-static.net/uploads/4450517/normal_6040350e89b73.pdf
    • https://static.s123-cdn-static.com/uploads/4459163/normal_5fcc743b35eb6.pdf
    • https://cdn.sqhk.co/tazurusubiz/id5ifDI/microgolfoven_kopen_mediamarkt.pdf
    • https://cdn.sqhk.co/xokipuxat/ij3hdjc/50648380334.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/d8f7610d-4abb-493a-82e7-19de604113a8/christ_stopped_at_eboli_book.pdf
    • http://tevefetilojas.atwebpages.com/how_long_to_cook_sweet_potatoes_at_400.pdf
    • https://s3.amazonaws.com/purawuma/barbie_doll_ki_photo.pdf
    • https://s3.amazonaws.com/luxaduzimase/99529442681.pdf
    • https://s3.amazonaws.com/davolazupivowi/john_storey_popular_culture_5th_edition.pdf
    • https://uploads.strikinglycdn.com/files/0c275ed8-f936-4e75-8875-2f655eca184b/neroxomolajozejufegiwiwem.pdf
    • http://xikusaduxofi.atwebpages.com/percy_jackson_and_the_lightning_thief_free_download.pdf
    • https://s3.amazonaws.com/zamemigojat/us_articles_of_confederation.pdf
    • https://s3.amazonaws.com/megodipewukitoj/choir_uniforms_snl.pdf
    • http://kofaxafogi.myartsonline.com/6492747649.pdf
    • https://uploads.strikinglycdn.com/files/aafc423d-f611-4ce6-9284-526a17b4ed39/mukanazumafuzifewaluwop.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f153.bin
eab3596f2c8d52ef32bc68a74f952cc5f538fa6a6bf8193b3df69a881e530d4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF153 5920 bytes
font_01_sfnt_off0001058a.bin
a7bd949de8300fbe9e21ee816cb46e03bd6f863dd93365ed9d24b4272a176993		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1058A 9968 bytes

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