Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc6909c19633887a…

MALICIOUS

PDF

84.9 KB Created: 2021-03-25 12:53:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f51e11347488eab9eb48c1bc404100fc SHA-1: 90ce0b6fbdc253bc4974d92fb6456d03e3012740 SHA-256: dc6909c19633887a2fa494fb6e314adbc3cad5f7bc339451121b02db340ec734
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to a suspicious domain, identified as malicious by ClamAV and a machine learning classifier. The document body, though heavily obfuscated, includes text that appears to be a lure related to 'Bilal Saeed picture', suggesting a phishing or social engineering attempt. The presence of external URIs indicates an attempt to redirect the user to a malicious site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://jumiwimov.ru/123?utm_term=bilal+saeed+picture
    • http://leludezoz.scienceontheweb.net/26077035821.pdf
    • http://salonvarna.com/dashiell_quinn_smithfc924.pdf
    • http://xatovapotogu.mywebcommunity.org/british_english_slang_dictionary.pdf
    • http://tepoparupomo.medianewsonline.com/zelda_ocarina_of_time_music_piano.pdf
    • http://ch-redirect.icu/77930517772f72e7.pdf
    • https://static.s123-cdn-static.com/uploads/4420248/normal_5fce24f6f0302.pdf
    • https://cdn-cms.f-static.net/uploads/4407989/normal_6038958e09cc3.pdf
    • http://copyrightshelpcenter.com/battle_disc_5_bombs_2_levelsn34ed.pdf
    • https://cdn-cms.f-static.net/uploads/4481162/normal_604a593f4db3a.pdf
    • http://xuzerujagojagip.scienceontheweb.net/the_courage_to_be_disliked_summary.pdf
    • http://xaninivinekeni.iblogger.org/51333322756.pdf
    • http://naxiramomamaz.66ghz.com/badland_3500_winch_installation_instructions.pdf
    • http://xukosususif.medianewsonline.com/komepedovuzejizujulubosi.pdf
    • http://www.punjabigram.com/bilal-saeed-picture-2/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://fa886832-b9e3-4ce5-a98c-97da2614721f.filesusr.com/ugd/9f8050_0f09c0adfec843c68c6b9c1a2c5fcbfb.pdf?index=true
    • https://327bbe42-9aa5-4ca0-80e5-6c9857058a26.filesusr.com/ugd/2b870b_62504771dd3745a2aff2f86f910d7c3c.pdf?index=true
    • http://vakizonozajaxe.onlinewebshop.net/pobojobuk.pdf
    • https://7f03322d-63d6-449b-a8c2-a80beffeb2b6.filesusr.com/ugd/2994dd_a274f70a736d4a678c260e9a729e4f49.pdf?index=true
    • https://be9ca920-c372-4566-b00d-544f92814f3b.filesusr.com/ugd/f0c5a9_e4dcd37d5b5141cf8cb2ef69c983a0b7.pdf?index=true
    • http://jezevenakos.myartsonline.com/51082798957.pdf
    • http://dijuvunote.onlinewebshop.net/maximum_achievement_brian_tracy.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License
    • http://scripts.sil.org/OFL

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off00011f10.bin
f5351d8c99e5b50270ea2cd8051f83f9242f2cf2529aa6eef0f549bb9d168fff		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x11F10 22336 bytes
font_00_sfnt_off0000d9da.bin
e768098b7f276d71cdcdf8f56ff753b023a8045aaf4330f36ce126c45b9cd620		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9DA 5116 bytes
font_01_sfnt_off0000eb47.bin
4e365ebbeb08cc48d2a44dd4827c45e441b7bc5abe8ad62f352aa07a4b242ebe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEB47 4936 bytes
font_02_sfnt_off0000f906.bin
0bbd2d74678e109887515b2e3dce44241c9625b5109f2d0421ff341a61933f81		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF906 11060 bytes

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