Malicious PDF — malware analysis report

Static analysis result for SHA-256 2a6f13fddd79f937…

MALICIOUS

PDF

68.4 KB Created: 2021-02-18 23:33:40 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 12cdf410c611a94f64b97c4c0687ecfd SHA-1: 71e85fea29436068af9c3d99982f60894cb54559 SHA-256: 2a6f13fddd79f937b8e9a6f1b69fa170468376ae75f609f4256f6d22e85cfc17
126 Risk Score

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
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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/123?utm_term=cub+cadet+ltx1042+for+sale PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4381988/normal_5ffb045fc9a33.pdfIn PDF document text
    • http://somavifidovogi.iblogger.org/pdf_file_free_pc.pdfIn PDF document text
    • http://gekalam.22web.org/17809279792.pdfIn PDF document text
    • https://cdn.sqhk.co/nisugavu/34cIyjd/wuvamuragizukedajerifoxa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409409/normal_5ff149707e380.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451760/normal_5ff01539aa6e5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371809/normal_60162e28cd667.pdfIn PDF document text
    • http://visobewitumimek.22web.org/baahubali_2_tamil_movie_audio_songs.pdfIn PDF document text
    • https://cdn.sqhk.co/supesuvepo/qieSYPj/rufizifinopugapado.pdfIn PDF document text
    • http://kaxazul.iblogger.org/still_alice_full_movie_download_480p.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://palalujopaxuv.epizy.com/chennai_gana_friendship_song_audio.pdfIn PDF document text
    • http://xosekipile.rf.gd/wubilurixogirogu.pdfIn PDF document text
    • http://kelawezup.rf.gd/76763002652.pdfIn PDF document text
    • http://wupaxozejite.rf.gd/graphing_polynomial_functions_examples_with_answers.pdfIn PDF document text
    • http://kasanuvuwa.epizy.com/19512574326.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_off0000cccd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCCD 5544 bytes
SHA-256: 0b9249ca72542de69be142f7fa9dd13e4119028523c101bef18ed0dbbc60e125
font_01_sfnt_off0000dfb9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDFB9 10960 bytes
SHA-256: 86a8b9bf0bb715d4b438b0d957c1f7f5f6c6ca09b63da334e69be7e60d7c8544