Malicious PDF — malware analysis report

Static analysis result for SHA-256 62652b9cefd81095…

MALICIOUS

PDF

75.0 KB Created: 2021-03-30 08:04:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65eb82b5fc7e4148db3911bf06ad4cb3 SHA-1: 16fb047eb0fe4a781a6d9d328f3a39c13bd969b1 SHA-256: 62652b9cefd8109503a105244b58adf1d6c5eb99ce2a3496373c14c1a640d76a
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a tenancy agreement, aligning with common phishing tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://vilenefex.ru/123?utm_term=lodgers+tenancy+agreement+template
    • http://vidclips.design/5974731849dmhgt.pdf
    • http://samyog.ru/xateviwy9l17.pdf
    • http://best-store.club/wahl_pro_clip_clipper_amazon7kxxv.pdf
    • http://arenaprobet.com/5035152316sns4i.pdf
    • http://my-favshope.online/foguwiterirubavelodqz1yw.pdf
    • http://1xbet-registrat.site/30332683096f0x96.pdf
    • https://cdn.sqhk.co/mesirunomi/dLjgchd/26939798946.pdf
    • http://busforpay.online/576470801628vd4y.pdf
    • http://stingeksoj.online/lego_mindstorm_nxt_instruction_manuaf8t21.pdf
    • https://cdn.sqhk.co/zevinikiwi/fyiefih/minecraft_world_downloads_1._16._3.pdf
    • http://filmera.ru/aqa_a_level_biology_year_2_bookk31hh.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/51efdf7d-d682-4977-870f-419cdc1c4f78/what_was_ancient_greek_famous_for.pdf
    • https://s3.amazonaws.com/begijufadi/satuwixidifari.pdf
    • https://uploads.strikinglycdn.com/files/c84dde44-7dea-4933-9f64-6fba49b3dc09/how_to_solve_grow_cube.pdf
    • https://uploads.strikinglycdn.com/files/fdc5a9f5-0eaa-4f54-adef-1d8db4950339/38671167887.pdf
    • https://s3.amazonaws.com/salosibejodod/presentation_on_indian_culture_and_tradition.pdf
    • https://uploads.strikinglycdn.com/files/da159011-821c-403f-9f34-b15eaf882e81/harry_potter_und_der_stein_der_weisen_zusammenfassung_kapitel_1.pdf
    • https://uploads.strikinglycdn.com/files/db3fd9fe-284e-4485-bfd8-e28eaaf04218/96179606955.pdf
    • https://s3.amazonaws.com/juliziwojatige/what_does_a_particle_model_mean_in_science.pdf
    • https://s3.amazonaws.com/voxipanovigepiv/how_do_you_reset_the_limit_switch_on_a_lennox_furnace.pdf
    • https://uploads.strikinglycdn.com/files/741fc3e8-a077-4acb-83fb-64ae50d06743/sony_a6500_buy_uk.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_off0000e895.bin
ac384e8cb98fbef650babb349ed2b425becbd0e57dd9a14fc4194467bc40e498
pdf-font-stream PDF embedded font (sfnt) at offset 0xE895 5436 bytes
font_01_sfnt_off0000fb0c.bin
5fb71aba3d211f8d79d22ef71e6d06fd6d5a87ac3f910cd1c70d5f62ec2e1243
pdf-font-stream PDF embedded font (sfnt) at offset 0xFB0C 10344 bytes