Malicious PDF — malware analysis report

Static analysis result for SHA-256 40936486b2eef12e…

MALICIOUS

PDF

86.4 KB Created: 2021-05-21 14:09:00 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d75b2e482f3d64e6e18c51b12ab2fed SHA-1: 180564e1e80e80c427204cfcd5b31359a83f977c SHA-256: 40936486b2eef12eb2fb3c740faf8d796e6c75e6f508a3ab4fedc2a776c5f94e
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URL points to a suspicious domain, likely serving as a lure for users to download further malicious content. The document body, though heavily obfuscated, suggests a deceptive title related to media downloads, consistent with phishing or social engineering 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://midufefew.ru/strik?utm_term=descargar+que+pobres+tan+ricos+capitulos+completos+mega
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rirusozo/3rd_phase_of_french_revolution.pdf
    • https://s3.amazonaws.com/punurum/sears_craftsman_radial_arm_saw_table_dimensions.pdf
    • https://s3.amazonaws.com/gixirojozogufux/58117781850.pdf
    • https://s3.amazonaws.com/punagilelabon/retagolaze.pdf
    • https://uploads.strikinglycdn.com/files/7dcf6b96-286d-4ce9-b0fb-512d60796c10/luxozuzivifevanetut.pdf
    • https://s3.amazonaws.com/kitakilesa/leatherworking_guide_tribal.pdf
    • https://s3.amazonaws.com/bubeto/casio_g_shock_5146_battery.pdf
    • https://uploads.strikinglycdn.com/files/14508fe9-072d-49ee-8b52-a67217812665/munasetubimaxamofasijipu.pdf
    • https://s3.amazonaws.com/jutenojamega/74724420300.pdf
    • https://s3.amazonaws.com/lijopavexanuse/ielts_general_writing_task_1_simon.pdf
    • https://uploads.strikinglycdn.com/files/aec11777-4575-4d0d-81ec-625bea7be4ce/dukuxop.pdf
    • https://uploads.strikinglycdn.com/files/f616a950-ad0d-4d49-a151-b0d7a95a349e/93094552684.pdf
    • https://s3.amazonaws.com/mubefula/sims_4_patch_september_2020_broken_mods.pdf
    • https://s3.amazonaws.com/mosezavor/91159444584.pdf
    • https://s3.amazonaws.com/numunenoji/xatuzivibe.pdf
    • https://s3.amazonaws.com/rubidokezive/22099545456.pdf
    • https://s3.amazonaws.com/tobaziw/bejowezono.pdf
    • https://s3.amazonaws.com/kovezux/74293137285.pdf
    • https://uploads.strikinglycdn.com/files/a2451543-1640-4179-9740-c8c46aa9e007/acorde_re_bemol_mayor_piano.pdf
    • https://s3.amazonaws.com/pomaxa/1716498940.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f922.bin
4d7acdbcf3537b76426ac53be97f21379da27bcc4172b46c755e997158299dc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF922 5520 bytes
font_01_sfnt_off00010bd3.bin
933ebdfbeac9683b47d9d3506802ee597828c1f1bfe60c761e01c69aa727b579		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10BD3 13400 bytes
font_02_sfnt_off000134a9.bin
a95eff378c135b1ab40d10b3cd1da1bafbc07f86005f57898d079c90d712ddbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x134A9 16204 bytes

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