Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ede5ca08421f93b…

MALICIOUS

PDF

80.0 KB Created: 2021-03-20 20:25:26 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: 88b95dd6a335b992207002e938350bc0 SHA-1: 958531c2ed3ceb3cf910f4c53e9dc35a210d3b58 SHA-256: 5ede5ca08421f93b917d7c6cd60f6404bab3fee93563cc9aafeeb7a0f3215b89
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'golowaki.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, appears to be a lure related to game mechanics, attempting to trick users into visiting the external URL.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://golowaki.ru/wix?keyword=best+shifter+feats+pathfinder PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4384817/normal_600eb402680cd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367300/normal_5fcea8a146a2d.pdfIn PDF document text
    • https://cdn.sqhk.co/tumupowe/KjgT4hg/ding_ding_dong_song_lyrics.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446944/normal_6000ae2a2849c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501361/normal_60338568be8f2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4492892/normal_6026b3dac56f5.pdfIn PDF document text
    • https://cdn.sqhk.co/vokipidelad/WBHYhgi/secondary_education_commission_report.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459636/normal_603bab8858396.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4370302/normal_5fd76fab8d812.pdfIn PDF document text
    • https://cdn.sqhk.co/rujiwujik/iihbxjh/sikavufubujuxereraziwaxif.pdfIn PDF document text
    • https://cdn.sqhk.co/gumorefose/lgh99gg/kung_fury_street_rage_android.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/tokudapele/trigonometric_formulas_sum_difference.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bff03cbf-5f9c-478c-9738-6be91dfa9d12/chemistry_12_reaction_mechanism_worksheet.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/01ded7e7-be4f-40b8-9b4b-dd247fbbb52d/how_to_make_a_homemade_generator_with_magnets.pdfIn PDF document text
    • https://s3.amazonaws.com/kiguteperilodu/atmosfx_ghostly_apparitions.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9848c2de-b06c-4320-a3cd-d37baa20b365/jojefilulefigenesu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/689aa5cd-6ea5-4036-95f9-9f36d247fd23/73529937642.pdfIn PDF document text
    • https://s3.amazonaws.com/lupuvogotog/52390600906.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9ee36e43-9382-473e-985a-82f28a167b4a/que_se_necesita_para_ser_mecanico.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5755a4db-643f-4107-bdad-b2cabb52afb9/71663674194.pdfIn PDF document text
    • https://s3.amazonaws.com/nigimul/34355324318.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A7 5144 bytes
SHA-256: 0c4e7f84dea01ce82e3a0c1210820f7da4aa4b5f3fdf809990d84439f758bfc8
font_01_sfnt_off00010526.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10526 10720 bytes
SHA-256: 238841884665f4a19f153820c7a9a8b07450470d2f125fdfb0dd7e29eb21d078
font_02_sfnt_off0001299e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1299E 1736 bytes
SHA-256: f27f1dab863be407bc80ce69f069aaa000ada345c50a5fba1d6b915b5f603bb6

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