Malicious PDF — malware analysis report

Static analysis result for SHA-256 79ec58033a0ef809…

MALICIOUS

PDF

69.7 KB Created: 2021-05-23 12:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6e0104aad119669399f2012511a5b89c SHA-1: dda2a0f69eaefed07865e13472e67ba3761b3db3 SHA-256: 79ec58033a0ef809a22e1ab0382225a3d88e553ec94b81bf74d2f8bd3a3a9058
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by a machine learning classifier and ClamAV, indicating a high likelihood of malicious intent. The presence of an external URI pointing to 'soxebez.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and the external URL are strong indicators of a malicious lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://soxebez.ru/strik?utm_term=super+smash+flash+3+unblocked+76
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/luborinizu/93527952250.pdf
    • https://s3.amazonaws.com/tigewibejageju/sotomijutelu.pdf
    • https://uploads.strikinglycdn.com/files/e2121a70-8354-40d1-ac7e-dafd76786854/toro_lawn_mower_20332_belt.pdf
    • https://s3.amazonaws.com/savifin/how_to_fix_a_sloan_flushmate_toilet.pdf
    • https://uploads.strikinglycdn.com/files/1aec5882-d69e-40d1-a98a-45f304887658/biochemistry_books_lehninger_free_download.pdf
    • https://s3.amazonaws.com/dudujopixejikug/pomofumidesin.pdf
    • https://s3.amazonaws.com/julaxel/77883323854.pdf
    • https://s3.amazonaws.com/zunewidimem/arjun_abhimanyu_kannada_movie_songs.pdf
    • https://uploads.strikinglycdn.com/files/bfbb7726-dcb8-4334-92b7-73ab8d21b6b6/pilot_a_one_english_grammar_7th_class.pdf
    • https://s3.amazonaws.com/xetasif/vishnu_sahasranamam_for_beginners_with_english_lyrics.pdf
    • https://s3.amazonaws.com/robumuduluwise/boutonniere_deformity_orthobullets.pdf
    • https://uploads.strikinglycdn.com/files/7bbf85e6-8b1e-4226-adc4-a2c32931caa4/57695118453.pdf
    • https://uploads.strikinglycdn.com/files/7dc317f0-6591-4010-b30e-c098f028241c/defiant_keyless_deadbolt_programming.pdf
    • https://uploads.strikinglycdn.com/files/99f5e6b0-efdb-415f-b9d0-b9b1e1125b40/52638460983.pdf
    • https://s3.amazonaws.com/fidobakipivogit/image_to_text_converter_php_script.pdf
    • https://s3.amazonaws.com/pisedij/76081151950.pdf
    • https://s3.amazonaws.com/temujonuwu/94005817936.pdf
    • https://uploads.strikinglycdn.com/files/fe3c9bfc-8f71-4b65-948e-07ac0435d2cc/jurogunuvubozorivas.pdf
    • https://s3.amazonaws.com/bifadiwuwileji/formas_de_decir_buenas_noches_en_aleman.pdf
    • https://s3.amazonaws.com/kefefetafij/whirlpool_washer_dryer_error_code_e06.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_off0000d156.bin
5efe455f48fd9d5730c4e69104ba8a946449364d12a49a93844533a6fe43ad48		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD156 6100 bytes
font_01_sfnt_off0000e5e8.bin
75f155d4c7915e6221bd58d496ef74deb8b55ff1f006f204eb9050a35d6df645		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE5E8 10832 bytes

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