Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae94ab46cc03dc9c…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 05:41:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 699b9b7e021f24e2373afef3689c7d43 SHA-1: 49daba84bcd5199fe8c1adb1f60f6987652a1f16 SHA-256: ae94ab46cc03dc9ca01d60654200c8712f7f1316209ea86e4d64fecc38eedb80
96 Risk Score

Malware Insights

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

The file is a PDF document flagged by ML classifiers and ClamAV as malicious. It contains an embedded URL that directs users to a website, likely for phishing or malware distribution. The document body, though heavily obfuscated, suggests a lure related to 'Sega ages sonic online'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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://lozipotod.ru/wix?keyword=sega+ages+sonic+online
    • http://gamowenugeg.sportsontheweb.net/46395832462.pdf
    • https://cdn.sqhk.co/nowavutu/hcgdyiP/amazeum_free_days.pdf
    • https://cdn-cms.f-static.net/uploads/4461761/normal_6033a3b8bb700.pdf
    • https://cdn.sqhk.co/gujowaxexag/PnjfNdB/vaxuledafeluj.pdf
    • http://duxeluwezix.iblogger.org/atmel_studio_6._2.pdf
    • http://fakixigulidol.mywebcommunity.org/how_to_grow_butterhead_lettuce_from_seeds.pdf
    • http://digovin.getenjoyment.net/the_real_guitar_book_volume_1.pdf
    • https://static.s123-cdn-static.com/uploads/4393772/normal_5ff855ea35717.pdf
    • http://gakagebir.mypressonline.com/bejaweg.pdf
    • http://vubitim.sportsontheweb.net/mofuvijetamadunud.pdf
    • https://cdn-cms.f-static.net/uploads/4385437/normal_60276dc41f208.pdf
    • https://cdn-cms.f-static.net/uploads/4488101/normal_60124970c1a52.pdf
    • http://xitemomide.22web.org/what_are_the_6_essential_nutrients_your_body_needs.pdf
    • https://static.s123-cdn-static.com/uploads/4413456/normal_6007fd97acdd1.pdf
    • https://cdn-cms.f-static.net/uploads/4413702/normal_602a11b073308.pdf
    • http://kirakexig.mypressonline.com/how_to_make_a_chinese_lantern_that_flies.pdf
    • http://ferafukapawap.scienceontheweb.net/vc_generator_2k16_no_survey_no_human_verification.pdf
    • https://static.s123-cdn-static.com/uploads/4369907/normal_5fc65d79c5643.pdf
    • https://cdn.sqhk.co/molodomo/ijribkD/rutakugumitaxiv.pdf
    • http://bejisosubonito.sportsontheweb.net/denewa.pdf
    • http://xufelaketodo.getenjoyment.net/usps_domestic_mail_calculator.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://xenavak.rf.gd/12009173248.pdf
    • http://vosivoru.epizy.com/nifivovam.pdf
    • http://vibiwarufade.rf.gd/lufufitunabugejofalet.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_off0000de22.bin
4e6fa7fde11ea556638370ecd2538e58d59bf9512d8f3f95f036968a17318927		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDE22 4972 bytes
font_01_sfnt_off0000ef20.bin
c7f18a3f02611a4ecaf39cb682b6e0ed6fd032539cc451eb6838d8b4cc7a899d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEF20 10416 bytes

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