Malicious PDF — malware analysis report

Static analysis result for SHA-256 fcd71bf31e3b69bc…

MALICIOUS

PDF

74.4 KB Created: 2021-03-01 03:56:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-22
MD5: bc54778d583e5836e429e51baeb8c807 SHA-1: e51f5ec977a28d01830d79faf3defc68c9faccd0 SHA-256: fcd71bf31e3b69bc74aace80a9d95a50500ee16b384541e50287083d218ce485
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to 'jottigo.ru', which is flagged as suspicious. While no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it is designed to redirect users to potentially harmful content, likely for phishing or malware delivery.

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/aws?utm_term=when+does+step+1+go+pass+fail PDF link annotation
    • http://itwomen.space/chapter_10_blood_answer_keyhhbc2.pdfIn PDF document text
    • https://cdn.sqhk.co/jasuxerazifo/heJrhhf/wire_secure_messenger_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4455673/normal_60272f2bb4623.pdfIn PDF document text
    • https://cdn.sqhk.co/fusaduxuw/gckjefK/63923783351.pdfIn PDF document text
    • https://cdn.sqhk.co/bevizewo/gChcFPe/cal_fire_evacuation_map_creek_fire.pdfIn PDF document text
    • https://cdn.sqhk.co/perikowep/BQQjghc/99588458371.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4418579/normal_5febaa7828e3f.pdfIn PDF document text
    • https://cdn.sqhk.co/mumaxeje/ngjjehi/minecraft_xbox_360_seeds_water_world.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446026/normal_602fda8a78c03.pdfIn PDF document text
    • https://cdn.sqhk.co/vebiziwob/W3z49nS/voribas.pdfIn PDF document text
    • https://jovivikara.weebly.com/uploads/1/3/0/7/130740330/burejinanorowoki.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/resisuna/excel_vba_create_list_of_sheet_names.pdfIn PDF document text
    • https://s3.amazonaws.com/nuruvapozixix/favipenopafukedofan.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/bernie_madoff_scandal_summary.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/23807518687.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_off0000e639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE639 5272 bytes
SHA-256: d20705ef5f0fbbbbcce8fb91e48cbc425a9c287803ce15c344a6557c84a12218
font_01_sfnt_off0000f844.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF844 10572 bytes
SHA-256: 7845c70837634075028d2140218b8806934aad23f87b2538f9bfd380dfbda823

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