Malicious PDF — malware analysis report

Static analysis result for SHA-256 dde1f7f4b5d1ea14…

MALICIOUS

PDF

77.1 KB Created: 2021-05-17 09:40:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2e841ef3d329b24284023a3b3f88009d SHA-1: 9d726f3d635c241c5145893620e1f6f7488d627c SHA-256: dde1f7f4b5d1ea140f0ea4efa96afa258efe400bab9f4c7c8195d67774f9ab53
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 0.9997

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://kuzutuzo.ru/strik?utm_term=wd+my+cloud+home+sync+mac PDF link annotation
    • http://topcabinets.xyz/worksheet_1a_body_systems_and_structureslkj5b.pdfIn PDF document text
    • http://tixshopclub.space/raxejikurelegelomilerebars92of.pdfIn PDF document text
    • http://mizafaroremida.getenjoyment.net/misuzuvifawukamipit.pdfIn PDF document text
    • http://websporizlehd.com/985477800782ckgi.pdfIn PDF document text
    • http://zakosemej.mypressonline.com/academic_writing_for_graduate_students_3rd_ed.pdfIn PDF document text
    • http://zapegerebipe.22web.org/structural_ambiguity_examples.pdfIn PDF document text
    • http://predouche.xyz/datazajifujonuwekekatadeiaje.pdfIn PDF document text
    • http://freedate18.xyz/5348459034907btf.pdfIn PDF document text
    • http://bet-info.ru/915250116829juqd.pdfIn PDF document text
    • http://galufixagomedo.getenjoyment.net/likifezipidapesid.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/wupuxus/adform_creative_products.pdfIn PDF document text
    • https://s3.amazonaws.com/mafavuzenoliki/bach_double_violin_concerto_music_sheet.pdfIn PDF document text
    • https://s3.amazonaws.com/forupokisip/great_fairy_fountain_theme_piano_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/33595348501.pdfIn PDF document text
    • https://s3.amazonaws.com/dibedamoka/lg_lmxs30776s_water_filter_location.pdfIn PDF document text
    • http://ligoroxenafof.atwebpages.com/manuale_arduino_starter_kit_italiano.pdfIn PDF document text
    • http://taxifegizuni.epizy.com/ff8_eden_summon_guide.pdfIn PDF document text
    • https://s3.amazonaws.com/sasufufa/jizuwexemodunabirifuxavi.pdfIn PDF document text
    • http://newepizudef.atwebpages.com/amar_chitra_katha_download.pdfIn PDF document text
    • http://dexedigobejo.rf.gd/appcoda_swift_download.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_off0000efb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEFB2 5200 bytes
SHA-256: 41c0f4c978006fa045ae610c6c7e80382d023dfe66ea6f1876814e215d7d570e
font_01_sfnt_off0001014e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1014E 11200 bytes
SHA-256: 8eaefc1cabb22b3f4006e5b6d960bc641d34a1555b256d71f6e29832a2db768a

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