Malicious PDF — malware analysis report

Static analysis result for SHA-256 1bcd64665e2d7471…

MALICIOUS

PDF

73.3 KB Created: 2021-03-17 21:01:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 2a156b146cbf87e99f3c1596b5ca358a SHA-1: 59fb04b3dc8d9a2239b56a21cfaf1667bf5982aa SHA-256: 1bcd64665e2d7471c8d5d68a31073a0ab967a7aa175cad6491da514cd8d74543
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://lozipotod.ru/strik?utm_term=pioneer+sx-750+vs+sx-780 PDF link annotation
    • http://duwosolutanuz.mypressonline.com/sodovubobedezobifepid.pdfIn PDF document text
    • http://bolawixefop.mygamesonline.org/11158554986.pdfIn PDF document text
    • https://cdn.sqhk.co/ripudilibizo/WTghhE8/vipofugawokitavolilan.pdfIn PDF document text
    • http://sokesiket.22web.org/nepajegibolobelagedaxotaw.pdfIn PDF document text
    • https://cdn.sqhk.co/kiwapipu/hpjeipr/administrador_de_dispositivos_moviles_android.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/jadere/75599556293.pdfIn PDF document text
    • http://todidetiped.onlinewebshop.net/the_very_busy_spider_activities_eyfs.pdfIn PDF document text
    • http://zokibepi.epizy.com/65604946987.pdfIn PDF document text
    • http://tizedukef.epizy.com/6582741554.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/letter_address_format_south_africa.pdfIn PDF document text
    • https://s3.amazonaws.com/polexebuj/8174171387.pdfIn PDF document text
    • https://s3.amazonaws.com/zozuxukoxo/zadenez.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/68699755706.pdfIn PDF document text
    • https://s3.amazonaws.com/napejaxosinages/84760480199.pdfIn PDF document text
    • http://wiwawilif.epizy.com/katerajaneveda.pdfIn PDF document text
    • http://bubevitivapel.rf.gd/computer_software_definition_quizlet.pdfIn PDF document text
    • http://rorodev.rf.gd/80133701880.pdfIn PDF document text
    • http://nujedanamepo.rf.gd/vowuliva.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_off0000e119.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE119 5136 bytes
SHA-256: 54d997e9e8d753046b49db1dfd0ede3e3a28f4b298720b3035a6ca9903a34d39
font_01_sfnt_off0000f2c1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2C1 10856 bytes
SHA-256: 65e4eaee794482139a22a0f5be404b52396fa40162a3124c109ec5e3fdd85d9e