Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed24d515c5aeb1c5…

MALICIOUS

PDF

92.6 KB Created: 2021-03-09 15:12:37 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 14261f83f02d7a871ef2e0636f82e17f SHA-1: f8e088895b70ca2e207c11fcc8bb3a50374981db SHA-256: ed24d515c5aeb1c533eed8029481320a24b01a08d412c911ed0bd39d2d4c2c1a
154 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics as malicious, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The document contains a large number of external links, suggesting it is part of a link farm designed to redirect users to potentially malicious content. The primary malicious activity observed is the embedding of numerous URLs, likely intended to lead users to phishing sites or further malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8221

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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
  • 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://jottigo.ru/aws?utm_term=what+is+the+main+idea+of+drive+theory+group+of+answer+choices
    • https://cdn.sqhk.co/gojelonub/hihfgi2/capstar_flea_tablets_for_dogs_reviews.pdf
    • https://cdn.sqhk.co/mixubiki/dhigfge/app_launcher_iphone_6.pdf
    • https://cdn.sqhk.co/boxokozofe/19hcEjj/highway_prado_racer_game_download.pdf
    • https://jukorupojos.weebly.com/uploads/1/3/5/3/135344641/nurel.pdf
    • https://sodikisug.weebly.com/uploads/1/3/1/4/131437766/kunomefoner.pdf
    • https://cdn.sqhk.co/woteruzid/icCsicE/download_speed_racing_ultimate_4.pdf
    • http://mixevome.22web.org/kiziwixanakilutivigejufes.pdf
    • https://tivepikilusu.weebly.com/uploads/1/3/4/7/134759048/delorisogatar-timasuta-wotepilanig-gupotibi.pdf
    • https://rejobasagiletez.weebly.com/uploads/1/3/4/6/134642313/kotube_wewes_zesapigep_gawafurexogaju.pdf
    • https://guxofoxevi.weebly.com/uploads/1/3/4/7/134737998/f64e2c3.pdf
    • http://numidib.22web.org/mawopapekojadikapo.pdf
    • https://cdn.sqhk.co/fovudadeweto/vjdjgjd/digigabimosejiw.pdf
    • https://cdn.sqhk.co/vokalater/idiiibC/free_music_downloader_mp3._descargar.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/a70df130-576f-4aa8-bd19-686deb8a5876/41047023488.pdf
    • https://s3.amazonaws.com/zeworibuzoza/peter_pan_cuento_en_ingles.pdf
    • https://uploads.strikinglycdn.com/files/f921f5d1-55a7-4f0a-8d25-4ac72b416bb5/686030930.pdf
    • https://s3.amazonaws.com/rojalexipokadaz/video_song_er_for_android_mobile.pdf
    • https://uploads.strikinglycdn.com/files/d55fe9af-b216-4353-a4cc-6e6b2811e30c/73717836096.pdf
    • https://uploads.strikinglycdn.com/files/64abe91c-7b6b-4a57-a718-1d46fceece40/jizavusakuwagud.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000159f6.bin
1df968d32210ff1b96a0d16b27067a5565841d0375942158c029ab7e904bf534		 pdf-font-stream PDF embedded font (sfnt) at offset 0x159F6 5804 bytes

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