Malicious PDF — malware analysis report

Static analysis result for SHA-256 3babdec685aaff80…

MALICIOUS

PDF

73.2 KB Created: 2021-03-22 15:18:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6de1f342ba1db7fde3e3acfe3d1193b1 SHA-1: 4757b8d0b06358cc05167e16046b8461e3929b88 SHA-256: 3babdec685aaff80aab2ed6f775d45db0af75f596512f68ffa733a299cacc9be
96 Risk Score

Malware Insights

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

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of an embedded URI pointing to 'soxebez.ru' suggests a phishing or malware distribution attempt. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document designed to trick users into downloading further payloads or revealing sensitive information.

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/award?keyword=liturgical+year+worksheet+pdf
    • http://nawitebexu.medianewsonline.com/lobuvikafede.pdf
    • http://kodiludo.iblogger.org/occupational_health_and_safety_lecture_notes.pdf
    • http://natotakujoriw.iblogger.org/severe_sepsis_and_septic_shock_antibiotic_guide.pdf
    • http://nokasosozigof.mypressonline.com/richard_iii_of_england.pdf
    • http://tanijijud.sportsontheweb.net/cuanto_es_2_pulgadas_en_milimetros.pdf
    • http://tiwelonepozafuw.iblogger.org/empires_and_puzzles_hero_guide_anchor.pdf
    • http://doxisolawasusig.66ghz.com/99386548262.pdf
    • http://begimewabifax.getenjoyment.net/apostrophe_examples_sentences.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tuxalowafokuvo/97719509928.pdf
    • http://sivofabef.epizy.com/60431473933.pdf
    • https://s3.amazonaws.com/liwara/organic_chemistry_important_reactions_for_jee_mains.pdf
    • https://uploads.strikinglycdn.com/files/ee06349d-2d91-4f85-86f9-7cf4d6cf54af/test_de_inteligencias_multiples_howard_gardner_ficha_tecnica.pdf
    • https://uploads.strikinglycdn.com/files/bcb41db7-6aaa-4565-8326-3c7971efd0c5/51272138338.pdf
    • https://s3.amazonaws.com/zozuxukoxo/what_caused_the_italian_renaissance.pdf
    • https://uploads.strikinglycdn.com/files/6b4bc51e-d1bc-4d9d-8fb9-0d9239d1b2a6/qcy_airpods_price_in_pakistan.pdf
    • https://s3.amazonaws.com/netinuwa/95563001769.pdf
    • http://teporududa.rf.gd/35406571526.pdf
    • http://pemixatu.epizy.com/codex_adeptus_custodes_8th_edition.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_off0000e0bb.bin
6acf4d715f5064960f724a266a918e569466a5e47114e69935658afd532ccc60
pdf-font-stream PDF embedded font (sfnt) at offset 0xE0BB 5616 bytes
font_01_sfnt_off0000f3f4.bin
486a71593936087e85ebe7c736c9d7f40262d36ad95ba095d76d61b5be44f061
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3F4 10528 bytes