Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8d847bd8224b851…

MALICIOUS

PDF

128.0 KB Created: 2021-03-25 02:51:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: a318c7b07d323b24800f50794a8dd873 SHA-1: 0120a0e3e5878a6a5af47ed549e854e7fdd58bd4 SHA-256: d8d847bd8224b851a7c5db2bf24275ecec80a50721540ea1b22f151b030d5414
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is identified as malicious by ClamAV and an ML classifier. It contains an embedded URL pointing to 'ponafet.ru', which is flagged as suspicious. The PDF structure and embedded content suggest it's designed to trick users into visiting this URL, likely as part of a phishing or malware delivery scheme. No scripts were extracted, but the presence of external URIs is a strong indicator of malicious intent.

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://ponafet.ru/123?utm_term=fashionary+bag+design+book+pdf PDF link annotation
    • http://wejafopag.mypressonline.com/pdf_file_editor_apk_free_download.pdfIn PDF document text
    • http://flash-sar.online/konica_minolta_bizhub_c224e_change_admin_password4rr8p.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4416299/normal_5fcbc1fa745bd.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462696/normal_5ffb8524de730.pdfIn PDF document text
    • http://guitar.su/direwewaiqv5b.pdfIn PDF document text
    • http://garanibukumom.scienceontheweb.net/30399058415.pdfIn PDF document text
    • http://trafikcezaodebayisi.com/lewejajokosidumaxnuc8h.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4473971/normal_5ff6774f4516f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4389793/normal_5fe5610ee1c3a.pdfIn PDF document text
    • http://nositadox.mypressonline.com/12457502424.pdfIn PDF document text
    • http://nanolenka.xyz/the_political_of_developmentfjs8i.pdfIn PDF document text
    • http://dfwshootersupply.com/zanuzujobezosexilol8umt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://vodulaxezapudez.epizy.com/lamuroborusamawe.pdfIn PDF document text
    • https://s3.amazonaws.com/suxuzubojut/watercolor_splash_brushes_photoshop_free.pdfIn PDF document text
    • https://s3.amazonaws.com/mukut/27615707826.pdfIn PDF document text
    • http://jifujurudale.epizy.com/bexavonulitopake.pdfIn PDF document text
    • https://s3.amazonaws.com/dosalapasenow/bass_boosted_english_songs_320kbps.pdfIn PDF document text
    • https://s3.amazonaws.com/lomogas/brembo_corsa_corta_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/nitizobuv/39421008307.pdfIn PDF document text
    • http://wurekino.epizy.com/battletech_board_game.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000edc9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC9 67440 bytes
SHA-256: 5bc6112b786748a86815389a64fcfca4d892d97d3b25a306886c8a2b69f41025
font_01_sfnt_off0001b79a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1B79A 5532 bytes
SHA-256: 918173c6ca92f54a2881e6a69e7e1f50c2f8587273aed6327b88004600b9e067
font_02_sfnt_off0001ca6c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1CA6C 12016 bytes
SHA-256: 34b53af6181b2a38c78ec9df88db70050adada28d5d406eef59f99733f444323

Open this report in the interactive analyzer, or submit your own file for analysis.