Malicious PDF — malware analysis report

Static analysis result for SHA-256 8049e171658d0b92…

MALICIOUS

PDF

88.5 KB Created: 2021-03-29 14:55:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-30
MD5: 39f92a88d9f40db7f700d7e2f6001767 SHA-1: 5392ee2447a959f6a10aa65df35865355b732ff5 SHA-256: 8049e171658d0b920bf1083a8d89e1c75f62a1a44f21780b235f9a3640af4b7a
156 Risk Score

Malware Insights

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

This PDF document is classified as malicious and contains a large number of external links, many of which are SEO-farmed. The primary malicious URL, https://kuzutuzo.ru/award?keyword=al+quran+arabic+with+bangla+translation+pdf+download, is designed to trick users searching for specific content into visiting a potentially harmful site. The presence of numerous external links suggests an attempt to distribute malicious content or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://kuzutuzo.ru/award?keyword=al+quran+arabic+with+bangla+translation+pdf+download PDF link annotation
    • https://jupiretuvivu.weebly.com/uploads/1/3/5/3/135383394/7776783.pdfIn PDF document text
    • http://xawegap.mywebcommunity.org/mobil.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvexajamu/ibwIBgh/ninja_fight_game_apk_download.pdfIn PDF document text
    • http://bexixibeguben.sportsontheweb.net/capital_structure_theories_notes.pdfIn PDF document text
    • https://gupijevud.weebly.com/uploads/1/3/1/4/131407369/39019de70867b.pdfIn PDF document text
    • https://cdn.sqhk.co/vetelojid/Yicghha/zifetajenelade.pdfIn PDF document text
    • http://neletaparufo.scienceontheweb.net/88209024908.pdfIn PDF document text
    • http://bolawixefop.mygamesonline.org/bodybuilding_back_exercises_and_anatomy.pdfIn PDF document text
    • https://gojenejanoz.weebly.com/uploads/1/3/0/7/130739654/71d95b69cc7e4b7.pdfIn PDF document text
    • http://vijevejumozugim.sportsontheweb.net/alternaria_porri.pdfIn PDF document text
    • https://mejodedasebedo.weebly.com/uploads/1/3/4/7/134725949/tidamitasuzolox.pdfIn PDF document text
    • https://xuwawimo.weebly.com/uploads/1/3/0/7/130739806/mizavewomaju.pdfIn PDF document text
    • https://cdn.sqhk.co/niserutom/hba29gh/6712241864.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://86a9da1b-0b57-4b35-a77a-523886b904cd.filesusr.com/ugd/0d9a50_5177fe29ea334da2803055843f3f52b1.pdf?index=trueIn PDF document text
    • https://43081b45-6e48-4b43-b724-9328fda377ae.filesusr.com/ugd/26481d_08fb5f41f44d41bf93ba64abe0a423e3.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/zodererezuzuxi/free_online_movies_twilight_new_moon.pdfIn PDF document text
    • https://s3.amazonaws.com/betefowubevat/6153683515.pdfIn PDF document text
    • https://8dac4d01-2cd1-45d2-8b5f-6005f802adc9.filesusr.com/ugd/1f96ce_57106649253c4fdab210d22976854487.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/towakog/pasokajomupewebuzesomi.pdfIn PDF document text
    • https://320f262d-053d-461a-9009-498fa3b044f5.filesusr.com/ugd/8e680a_ed4ac100afa04237879b3ef077c32260.pdf?index=trueIn PDF document text
    • https://36071b1a-d853-4ad1-bccf-0ed894d94038.filesusr.com/ugd/906e9f_5c44094f69a1427cba8dc86491354c8b.pdf?index=trueIn PDF document text
    • https://584abdf6-e408-48d3-a53c-4313a8f82471.filesusr.com/ugd/18ee90_cc854ef850e74327b20312969111b13c.pdf?index=trueIn PDF document text
    • https://8641c524-1fb5-4292-87ed-dd72f64d6c22.filesusr.com/ugd/9b7d8a_c49937385f124834b1d6c55df9c1df6e.pdf?index=trueIn PDF document text
    • https://s3.amazonaws.com/mogipegi/guided_reading_activities_grade_6.pdfIn PDF document text
    • https://s3.amazonaws.com/jinotugiwomo/vedefubukolatenitu.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e3de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3DE 5764 bytes
SHA-256: 16e34efbacb114e7a475e4f09ef93e2f827ee8c285a4dd45d51f493bf18fe897
font_01_sfnt_off0000f779.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF779 9212 bytes
SHA-256: f44d93dc6b31e19cf9655e17bb252ed55551c8697b00205ee45fc0ab05c9e693
font_02_sfnt_off000114db.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x114DB 11108 bytes
SHA-256: ffd26cfb392debe63e8c129200e768426aeef1e29f3e59e60dd8f5d8ded844c1
font_03_sfnt_off00013ade.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13ADE 16340 bytes
SHA-256: ef0d8c5c9378fcf871d91b189a5b69fda55e0856c71708867511ad0493d6aacf

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