Malicious PDF — malware analysis report

Static analysis result for SHA-256 a2678e784ed7e0b6…

MALICIOUS

PDF

72.6 KB Created: 2020-12-31 13:47:47 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 68337f840d8288af87eb81fc72a18970 SHA-1: 65ce11e16733a2f6be43cdb364e857b240d79782 SHA-256: a2678e784ed7e0b65330101745dd57230e9771037ef5553c9d8f30f0429c767a
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://traffine.ru/strik?utm_term=kim+kardashian+hollywood+mod+apk PDF link annotation
    • https://cdn.sqhk.co/munemuzabuk/dichlGM/32792102051.pdfIn PDF document text
    • https://cdn.sqhk.co/semegopo/hi2ih4h/ceo_simulator_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/zazavoxujub/6jhjdSD/clash_of_legendary_titans_gold.pdfIn PDF document text
    • https://cdn.sqhk.co/puwetudul/EhcjghD/kefutetoz.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fajixe/decision_tree_template_visio.pdfIn PDF document text
    • https://s3.amazonaws.com/vovuzize/succession_pogil_answers.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/459a9d31-d733-4a69-82e1-b3b7dcd08664/philadelphia_death_notices_2020.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1c922d34-f3d9-474a-9080-fcf2b1ae46e9/relion_wrist_blood_pressure_monitor_instructions_bp3uw1-3erl.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0d48d438-bbe0-4026-a76a-bf1cee2060c1/constant_mesh_gearbox_working.pdfIn PDF document text
    • https://s3.amazonaws.com/genedesowul/m_a_private_form_ki_date.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c6ef3c97-8b71-4dd1-80b5-bb69e8898668/modagavilud.pdfIn PDF document text
    • https://s3.amazonaws.com/fizaxo/312_area_code_canada.pdfIn PDF document text
    • https://s3.amazonaws.com/wopari/xarapuwogopalobabotosa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ea4da9cc-7573-4526-89de-aa9624db5e73/boat_n_rv_tn.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc3b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC3B 5424 bytes
SHA-256: 61d4d44ae2ff92369bf9ba3738d8dc8737501138fc8ad86ae74b41e48ba210b6
font_01_sfnt_off0000ee98.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE98 11568 bytes
SHA-256: 0e8452d172b5dea2bd1256a9bce1526e010277e8047b4ed9e08ef2bd90d7a34d