Malicious PDF — malware analysis report

Static analysis result for SHA-256 106c9ac1fbe066c2…

MALICIOUS

PDF

80.3 KB Created: 2021-04-01 03:43:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b5cccf75c9508c1e59c9ef44621493ac SHA-1: 182501262450651b79a71707201bf24ed0a788cc SHA-256: 106c9ac1fbe066c27e0fd301661ee122bb18ad545eca708720fcb50c084903ca
104 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 presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://druttle.ru/award?keyword=poema+de+atrahasis+pdf PDF link annotation
    • http://de-bewertung-889562.icu/96793960273l8h3x.pdfIn PDF document text
    • http://pocki.top/fedex_tracking_number_canadam7aag.pdfIn PDF document text
    • http://tosety.xyz/walulewisigisow9xdlg.pdfIn PDF document text
    • http://changepass.online/ukulele_strumming_patterns_4_4d4fg6.pdfIn PDF document text
    • http://bbcua.site/44817750168b6zak.pdfIn PDF document text
    • https://cdn.sqhk.co/vovawumusa/frGjc1y/minecraft_2020_advent_calendar_amazon.pdfIn PDF document text
    • http://autobuff.xyz/fractionation_seductioncx5td.pdfIn PDF document text
    • https://cdn.sqhk.co/ruwonumatag/i68jcih/texuzevezusapegikini.pdfIn PDF document text
    • http://instofficial.online/slot_car_track_buildersl91qz.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/xovekolamoxe/small_gods_folio_society.pdfIn PDF document text
    • https://s3.amazonaws.com/sixenogafopoj/facebook_app_free_java.pdfIn PDF document text
    • https://s3.amazonaws.com/vovabagubajegeb/chloroplast_structure_worksheet_key.pdfIn PDF document text
    • https://s3.amazonaws.com/dixaleko/ship_safety_management_system_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/fizufapu/agency_fb_normal_font.pdfIn PDF document text
    • https://s3.amazonaws.com/sugosubexez/how_do_i_program_my_ge_universal_remote_to_my_sony_dvd_player.pdfIn PDF document text
    • http://xapipapuvujefo.epizy.com/gulukezokuvufato.pdfIn PDF document text
    • http://vemevusakeke.epizy.com/dulibepadusulika.pdfIn PDF document text
    • https://s3.amazonaws.com/folexapurilowe/93929574344.pdfIn PDF document text
    • http://pavinudoj.epizy.com/wosiloserinumof.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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e7aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE7AA 5252 bytes
SHA-256: d45c2c99eff88f0cd39e87388f76fdaf26e153e0165c9c5d066c68e28d734a8b
font_01_sfnt_off0000f957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF957 11160 bytes
SHA-256: ad0c5300f107762b66ff04a85097d888fe4a97a4b04861f8fe8310d26c1bdef1
font_02_sfnt_off00011f1b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11F1B 16108 bytes
SHA-256: 97e80cc61ebbc6fe4ed03ffd5a5ae1d184ef07adb4204580ef84f3eb02720edc

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