Malicious PDF — malware analysis report

Static analysis result for SHA-256 a9f79efb11353792…

MALICIOUS

PDF

64.8 KB Created: 2021-02-18 07:26:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: f98ce0cb2949dfc08dd28c40ac748789 SHA-1: 634913611f23b2b485e69a16e082e1f79dfcabf8 SHA-256: a9f79efb113537920899ae8b953b6d01dcddffd88aa4b31acbb33a5e5c7676c0
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-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://jottigo.ru/strik?utm_term=the+trumpet+of+the+swan+full+movie+in+hindi PDF link annotation
    • https://cdn.sqhk.co/wemojezuvegi/QDDJKie/lowirepogudusewaxiji.pdfIn PDF document text
    • http://salea.site/instagram_crashes_on_androidiznka.pdfIn PDF document text
    • http://repair-kompov.ru/discovering_french_blanc_workbook_answershhnp6.pdfIn PDF document text
    • https://cdn.sqhk.co/patemugimej/Bbvjbgh/80030976574.pdfIn PDF document text
    • https://cdn.sqhk.co/pajokiman/jczaU8d/62623058112.pdfIn PDF document text
    • http://wimazosuwoxugij.66ghz.com/abhiman_film_song_free.pdfIn PDF document text
    • http://sulelufisumi.iblogger.org/essere_anticonformista_in_inglese.pdfIn PDF document text
    • https://cdn.sqhk.co/sozaxejiv/widgLic/29038527720.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wosumobikufiw.rf.gd/73035559823.pdfIn PDF document text
    • http://konevimojo.epizy.com/free_worksheets_community_helpers.pdfIn PDF document text
    • https://s3.amazonaws.com/daraniwekamidir/14687878634.pdfIn PDF document text
    • https://s3.amazonaws.com/megujobemegor/ziginutixanixiwilafo.pdfIn PDF document text
    • https://s3.amazonaws.com/palevijuj/account_executive_cv_format.pdfIn PDF document text
    • https://s3.amazonaws.com/julaxel/begobinokobogazerunub.pdfIn PDF document text
    • https://s3.amazonaws.com/najipavez/b_tech_eee_syllabus_jntu_hyderabad.pdfIn PDF document text
    • http://nogomazarem.epizy.com/fugixafisimosatob.pdfIn PDF document text
    • https://s3.amazonaws.com/wetowuzuxit/where_to_watch_the_invisible_war.pdfIn PDF document text
    • https://s3.amazonaws.com/vofadoloves/intercessory_ministry_guidelines.pdfIn PDF document text
    • http://nisuzadusidu.epizy.com/vande_mataram_song_dance_performance.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_off0000c031.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC031 5380 bytes
SHA-256: 4109a05ec0721c26721c554952c96699dbef9b2d3e96aa50201956229eaa25a1
font_01_sfnt_off0000d265.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD265 10432 bytes
SHA-256: cc7f023da3c0cb183da194493aca5355a72252557a7653c1234923cc7d8f5a08

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