Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7cb8c2036729fcd…

MALICIOUS

PDF

75.9 KB Created: 2021-03-27 16:25:34 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 21ba82c3d23398784d021b667a6b607f SHA-1: 9c678cb1e6a5f9e29d751ce35b5d2e0b72badb15 SHA-256: e7cb8c2036729fcd46ed4bb79130fc7b4db7eeb80160ee63de19500f689b7b94
96 Risk Score

Malware Insights

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

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains an embedded URI that redirects to a suspicious URL, masquerading as a guitar tab PDF. The document body is heavily obfuscated, but the presence of the external URI suggests an attempt to redirect the user to a malicious site, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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://leonvi.ru/award?keyword=metallica+master+of+puppets+guitar+tab+pdf
    • https://cdn.sqhk.co/dokederajo/f0lgeUj/2802481814.pdf
    • https://cdn.sqhk.co/dulunukosep/Djfhagc/dixikulapalogak.pdf
    • https://cdn.sqhk.co/nivabetaz/i0f5bIE/jufimid.pdf
    • https://cdn.sqhk.co/goduwonon/dJgjWwc/jetaudio_music_player_plus_apk_full_version_android.pdf
    • https://cdn.sqhk.co/jusupovexewa/cLdVTth/43962910899.pdf
    • http://kodavuviguwu.mypressonline.com/business_english_handbook.pdf
    • https://cdn.sqhk.co/togokitaz/ggIKicq/detention_officer_jobs_az.pdf
    • https://cdn.sqhk.co/sutazojawote/eJQMAjc/pets_mod_minecraft_1._12_2_backpack.pdf
    • http://totipuzuforaz.mywebcommunity.org/cartesian_plane_worksheet.pdf
    • https://cdn.sqhk.co/furaxofir/gjhi0he/13811453915.pdf
    • https://cdn.sqhk.co/ranemagesoga/b9ijZhb/71418540600.pdf
    • https://cdn.sqhk.co/bevizewo/Rm7jejg/android_wear_2._0_apk.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/banula/vewobe.pdf
    • https://uploads.strikinglycdn.com/files/1ddff5b9-0bf1-4562-800c-80a5279ec98f/graco_4ever_all_in_one_car_seat_installation_video.pdf
    • https://uploads.strikinglycdn.com/files/c14fa924-91d6-41b5-b008-6d99e4b49491/orion_tv_32082_instruction_manual.pdf
    • https://uploads.strikinglycdn.com/files/8e6998ef-82ca-4174-8652-63ec5a556174/tekupiwazivebegobodutix.pdf
    • https://s3.amazonaws.com/dufekifaral/vojubogotusi.pdf
    • https://s3.amazonaws.com/wulagisi/61208979052.pdf
    • https://s3.amazonaws.com/kawotexulozax/what_to_do_when_your_washing_machine_wont_spin.pdf
    • https://uploads.strikinglycdn.com/files/73f68f8a-eb64-4506-b199-aac29349c794/19563121750.pdf
    • https://s3.amazonaws.com/wudibirewuduto/ruxubalaneranij.pdf
    • https://s3.amazonaws.com/remavuj/5561780435.pdf
    • https://s3.amazonaws.com/wokesabisevo/wally_dish_hd_satellite_receiver_manual.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_off0000ea76.bin
5d1d9d693c2443a8859cee0f1b73b670740b27d67d4d0fdfa77b1db6521aa304		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEA76 5620 bytes
font_01_sfnt_off0000fd7f.bin
b1d1b048cd4f64d8002dd53e94450f497e0c1f0bed60a80050483df7cc1c1e89		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFD7F 10308 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.