Malicious PDF — malware analysis report

Static analysis result for SHA-256 116a5729fb57b72b…

MALICIOUS

PDF

81.1 KB Created: 2021-02-24 15:22:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: 6900254b1f177e3f0141abbfe8ad3c1e SHA-1: 2133f30b6cd5a04437d31a2a8936a04aa8139086 SHA-256: 116a5729fb57b72b5534523385e0a8e6ae68ef8fd42d35383a202e32de5d2a96
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-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://maypoin.ru/123?utm_term=acer+chromebook+spin+15+reviews PDF link annotation
    • https://cdn.sqhk.co/gixejefi/ofjbjcx/36300918019.pdfIn PDF document text
    • http://topdiscount.pro/pevokonuzewezavubijwa1.pdfIn PDF document text
    • http://ganutaragifak.22web.org/15445333062.pdfIn PDF document text
    • http://italy-small.space/my_funny_valentine_chord_melodyj7n5q.pdfIn PDF document text
    • http://bekowakiged.iblogger.org/are_dryer_sheets_bad_for_your_hair.pdfIn PDF document text
    • http://natgood.space/cuisinart_coffee_maker_has_power_but_wont_turn_onollr4.pdfIn PDF document text
    • http://kyponnik.online/dopewisugaxipuwoloduith09.pdfIn PDF document text
    • http://igafnd.org/a_k_sawhney_measurements_and_instrumentationaw9bg.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/xefejevife/44389404526.pdfIn PDF document text
    • https://s3.amazonaws.com/fekaduvopigab/66135773839.pdfIn PDF document text
    • https://s3.amazonaws.com/jujadodedaruxix/46680562564.pdfIn PDF document text
    • https://s3.amazonaws.com/kawotexulozax/jvvnl_admit_card_2019.pdfIn PDF document text
    • http://jogatitow.epizy.com/cappelletti_romagnoli_al_formaggio_ricetta.pdfIn PDF document text
    • http://zomimek.epizy.com/supercell_logo_font_free.pdfIn PDF document text
    • http://fukefuxatolu.epizy.com/daily_spending_tracker_excel_template.pdfIn PDF document text
    • https://s3.amazonaws.com/kesumasaka/gusudegutixasafanomesid.pdfIn PDF document text
    • http://lidezitenojugit.epizy.com/which_major_is_better_biology_or_biochemistry.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_off0000fe44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFE44 5452 bytes
SHA-256: fbfac0b0269aa4f3ac0f75b22da1c53d2a41026f07d5fa0ac08027259f8261da
font_01_sfnt_off000110c4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x110C4 10720 bytes
SHA-256: ce6ed8e788c908dcb90820e9da17ae2f13247037fdf4859e16b0cf54c9ff0477