Malicious PDF — malware analysis report

Static analysis result for SHA-256 5587be9ebfa9564d…

MALICIOUS

PDF

98.0 KB Created: 2021-03-31 00:20:45 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 8cf6bb679767a38b276942b3098fc2c6 SHA-1: 588c3467a91f86b9a7307cab62c59fb9d6a139b7 SHA-256: 5587be9ebfa9564ddd61a2d24c590a219295ce8b41104f682a23e3a76878c5af
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 0.9981

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://pelibifir.ru/award?keyword=attestation+sur+l+honneur+cerfa+pdf PDF link annotation
    • https://cdn.sqhk.co/gewanunu/NZsgdj8/tamil_christian_songs_mp3_audio_download.pdfIn PDF document text
    • http://xojudesabesone.66ghz.com/batman_the_dark_knight_rises_android_mod.pdfIn PDF document text
    • http://logusubunovad.22web.org/nusikaz.pdfIn PDF document text
    • http://lorubuxetorifa.medianewsonline.com/abandono_animal_en_mexico.pdfIn PDF document text
    • https://cdn.sqhk.co/xexisini/8ifBPij/64891830364.pdfIn PDF document text
    • https://cdn.sqhk.co/ruvonusebex/ygdygii/retedaretibeka.pdfIn PDF document text
    • https://cdn.sqhk.co/wakewafo/ciifhjE/85119241556.pdfIn PDF document text
    • https://cdn.sqhk.co/zopizote/8jXjbhj/72419997807.pdfIn PDF document text
    • https://cdn.sqhk.co/sadetujadufi/byhficq/girl_crush_lyrics_harry_styles.pdfIn PDF document text
    • http://medebowideretiw.22web.org/arthur_schopenhauer_books.pdfIn PDF document text
    • http://juzezudusota.mypressonline.com/what_are_3_negative_character_traits_does_odysseus.pdfIn PDF document text
    • https://cdn.sqhk.co/vapadexeb/l5WqFqZ/37705602546.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/dorulusof/how_covid_19_affected_employees.pdfIn PDF document text
    • http://fiwixetigimizi.rf.gd/narrative_analysis.pdfIn PDF document text
    • https://s3.amazonaws.com/naxizugenabi/focal_eeg_waveform_abnormalities.pdfIn PDF document text
    • https://s3.amazonaws.com/resisuna/24564908764.pdfIn PDF document text
    • https://s3.amazonaws.com/jitimesolagun/95735836369.pdfIn PDF document text
    • http://weponigonimogo.myartsonline.com/lalilufezoxutomolavo.pdfIn PDF document text
    • https://s3.amazonaws.com/luxelula/invitation_to_treat_contract_law_nz.pdfIn PDF document text
    • http://xajofad.rf.gd/5e_accord_toltque.pdfIn PDF document text
    • https://s3.amazonaws.com/xakajoziwibi/html_form_checkbox_unchecked_value.pdfIn PDF document text
    • https://s3.amazonaws.com/veraxawewib/brush_lettering_font.pdfIn PDF document text
    • https://s3.amazonaws.com/zukogi/5_minute_crafts_glass_bottle.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://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_off000115fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x115FA 5116 bytes
SHA-256: 89dc6bf167b50d7ce01ef1d34992a89de2c5d1f3ca4089968e67dadcf981cf95
font_01_sfnt_off0001274c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1274C 15168 bytes
SHA-256: e4c086791d3510e217fae34f645c0063168773a605c21ee61b02ebc13430a4ef
font_02_sfnt_off00015507.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x15507 16232 bytes
SHA-256: 97dfd5019501f23c63d119256cc9411ccc51cdc9e98ab6c60b5cbde597b43a1e
font_03_sfnt_off00016a66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x16A66 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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