Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca9c9d86c54743dc…

MALICIOUS

PDF

81.6 KB Created: 2021-03-03 08:46:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 54f2c6480c72a91ebdec77892e930c01 SHA-1: 39afd5d43143bbb0f5b1e792c8a2337f8b21744d SHA-256: ca9c9d86c54743dcb5103ebbc61f695a9da008aebcee7b39c32fb5670e71d034
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://nipisod.ru/strik?utm_term=does+tom+bombadil+represent+god PDF link annotation
    • http://bibivire.mygamesonline.org/tofisagidana.pdfIn PDF document text
    • http://wijetaz.mypressonline.com/a_second_declaration_of_independence_1879_summary.pdfIn PDF document text
    • http://igonlinesupport.com/galijegadulukisikuzyjx6.pdfIn PDF document text
    • http://reawont.online/45341224080c6m6z.pdfIn PDF document text
    • http://komaxinatobofe.medianewsonline.com/75207931384.pdfIn PDF document text
    • http://iranomics.com/45875373724etnkw.pdfIn PDF document text
    • http://lobabinuladeri.medianewsonline.com/how_do_you_clean_a_bissell_powersteamer_powerbrush.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xipokawopigigig.epizy.com/what_makes_up_a_rainforest_ecosystem.pdfIn PDF document text
    • https://s3.amazonaws.com/nabifovu/aashiqana_aalam_hai_song.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/kodaxezukawuduniweze.pdfIn PDF document text
    • https://s3.amazonaws.com/samopakamefap/63333416036.pdfIn PDF document text
    • https://s3.amazonaws.com/zategafozasiru/artex_c406-_1_elt_installation_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/vavabi/bitlocker_windows_7_64_bit.pdfIn PDF document text
    • http://susupufewowe.epizy.com/mudutuxepuxefoduj.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/98901244854.pdfIn PDF document text
    • https://s3.amazonaws.com/tumasun/tovelipufamunamuveva.pdfIn PDF document text
    • http://rukukuwozar.epizy.com/328322424.pdfIn PDF document text
    • https://s3.amazonaws.com/megulu/bluetooth_splitter_pro_apk.pdfIn PDF document text
    • http://xobekorafoza.epizy.com/are_old_nissan_frontiers_reliable.pdfIn PDF document text
    • https://s3.amazonaws.com/putelekireza/how_to_address_a_letter_to_chairman_of_the_board.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00010303.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10303 5416 bytes
SHA-256: bf10929001a529496a61d6fb91db2e90f904721e649061c975b6d2ee6a4cdd21
font_01_sfnt_off0001154d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1154D 10680 bytes
SHA-256: dad7ce96934b96107f9ffa72099eea4487b741b1045a1d19d2a63b0ad0eacc91

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