Malicious PDF — malware analysis report

Static analysis result for SHA-256 e529b07dab24e31b…

MALICIOUS

PDF

242.3 KB Created: 2021-04-04 14:14:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-07-07
MD5: f68cfa3c5060935ece85211fbf48be3b SHA-1: 03e49b443886e93450aa9604343a21d6c1202be7 SHA-256: e529b07dab24e31be4d7cb1f668a75d2c7cdc07e306e7289ec5bc2331d1fede2
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'https://jacksth.ru/wix?keyword=yosuke+persona+4', which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to 'Yosuke persona 4', potentially to trick users into clicking the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9819

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://jacksth.ru/wix?keyword=yosuke+persona+4 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4459917/normal_60668c41d5fb9.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4465565/normal_602297b71ddf9.pdfIn PDF document text
    • https://mawokuluser.weebly.com/uploads/1/3/5/3/135347786/9518670.pdfIn PDF document text
    • https://putepinezuvoko.weebly.com/uploads/1/3/1/8/131856998/96f2be98.pdfIn PDF document text
    • https://zepifuvuxetota.weebly.com/uploads/1/3/6/0/136095774/b537e3ff.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4478968/normal_5fcf943bdef3f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4474719/normal_60546c0d38927.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4475382/normal_60226cd399109.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418383/normal_606000f8df033.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449402/normal_60522dcb9445d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4412568/normal_60555bdad5550.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496853/normal_6064c297d5311.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4401555/normal_5fc6c6ae1ebf1.pdfIn PDF document text
    • http://fudasoba.iblogger.org/sentry_safe_1200_open_without_key.pdfIn PDF document text
    • https://dogerisu.weebly.com/uploads/1/3/0/8/130874322/zixozovesan.pdfIn PDF document text
    • https://kaxutaxi.weebly.com/uploads/1/3/4/3/134387751/zawifarumo-defojojipubifim-sefip-jesisigokutenu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475586/normal_5fe50e95e6372.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4494673/normal_5ff986b185a26.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378151/normal_60199046d4321.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://patazave.epizy.com/bangalore_metro_route_map.pdfIn PDF document text
    • https://44034db3-6cdd-4729-adf3-7ccd6afcf354.filesusr.com/ugd/9fe9cc_937abfc4876d471e874bb50734abe2f4.pdf?index=trueIn PDF document text
    • http://magotabitujotu.rf.gd/lamajuvapaliniw.pdfIn PDF document text
    • http://ridexinawaje.epizy.com/the_half_has_never_been_told_book_review.pdfIn PDF document text
    • https://1ec9b6e7-17eb-4e1e-a994-ba5ce4cbdb7c.filesusr.com/ugd/d4a9d6_4c8978e1c5b34cd79a5e218998eea59f.pdf?index=trueIn PDF document text
    • https://e0d0d77b-4c00-4265-bc22-f0cc5cf11ada.filesusr.com/ugd/957eb4_c832547f51c64fc993149c8ddfb4284a.pdf?index=trueIn PDF document text
    • http://didosides.rf.gd/food_stamps_south_carolina_income_guidelines.pdfIn PDF document text
    • https://299bc67c-4c9a-44ea-852c-18f2d39dca40.filesusr.com/ugd/954c8b_1d4b5b116e9f420a9574e8b02db983fa.pdf?index=trueIn 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
stream_004_off00029fb6.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x29FB6 76008 bytes
SHA-256: 36b859d25d68ac3230685392fc3fbb03d1040e228bab8eab3f301b862c9144de
font_01_sfnt_off0003810b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3810B 4896 bytes
SHA-256: 803d8a36e97824c9d172d239972a57703742be8eb490d76d141baede36a01adf
font_02_sfnt_off000391c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x391C7 12376 bytes
SHA-256: 685b0370a6dcac116c3079ab79c3890047d06f5ac0fc61b875f65d5c4aacda29

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