Malicious PDF — malware analysis report

Static analysis result for SHA-256 95f2dded4661f78a…

MALICIOUS

PDF

85.1 KB Created: 2021-03-09 03:40:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-06-17
MD5: b8aaa80978625c5ac6247fb63fb2a95a SHA-1: 7e4fd293225ffedc4e0a7490460b88445c6494bc SHA-256: 95f2dded4661f78abc62dc19eb9eb9611ca9c6eff1fe2ac9b00f600f3d2a8a65
126 Risk Score

Malware Insights

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

The PDF document contains multiple external URIs and is flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. The document body, though heavily obfuscated, includes a reference to 'shogun pdf download romana', suggesting a lure to a malicious website. The presence of numerous links to disposable hosting and potentially malicious domains indicates an attempt to redirect users to phishing or malware distribution sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://jumiwimov.ru/wix?keyword=shogun+pdf+download+romana PDF link annotation
    • http://intereriia.com/bombay_company_richmondx2t4d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379240/normal_60268f22a8309.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4366357/normal_5ffcb7aa3fa31.pdfIn PDF document text
    • https://sapuzexa.weebly.com/uploads/1/3/5/3/135348006/xibixamu_zaranujejan.pdfIn PDF document text
    • https://cdn.sqhk.co/detaludolef/f73iijb/moxizaxetujenemulaxupuzax.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467593/normal_6041b7a266001.pdfIn PDF document text
    • http://cleaner360.shop/a_n_r_songs289r2.pdfIn PDF document text
    • https://gatakuluva.weebly.com/uploads/1/3/1/8/131856326/xopusarajib.pdfIn PDF document text
    • https://vupojefagof.weebly.com/uploads/1/3/5/3/135316701/wulagagare.pdfIn PDF document text
    • https://cdn.sqhk.co/nugilatunu/jAhbWFM/64540417157.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4482631/normal_5ff9edf4a6b00.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4464067/normal_600a717719306.pdfIn PDF document text
    • http://ylyn.ru/one_punch_man_episode_1_in_englishb6gl7.pdfIn PDF document text
    • https://vozabamoz.weebly.com/uploads/1/3/5/9/135959881/tevivotigijutaw-zizon.pdfIn PDF document text
    • https://rujemezemomiwo.weebly.com/uploads/1/3/0/9/130969750/ad9393c5b490b.pdfIn PDF document text
    • https://visimekariluvog.weebly.com/uploads/1/3/1/4/131483525/eb3e4d1330f004.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b417a5f-b47e-4c57-bc55-02c9fb538855/bewonugaxetapuw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8b9d78d4-124a-41b2-95db-2dc6a5ed9a40/pathfinder_ultimate_combat.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c5f6a0d6-af47-4487-a780-6cb911a8205f/danoxixilubaxezofev.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/32136fe0-7046-4666-b195-c41e5d8b3a9d/lg_lfx31925st_linear_compressor.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_off00011153.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11153 5472 bytes
SHA-256: b2da0c3470eabce2b15eeeb9600d2d71f9ab07a9230944cc606de44e3897da62
font_01_sfnt_off000123e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x123E3 10264 bytes
SHA-256: 373190bae0c60e61ee297456f90cd26aa3a874c7235650175988adf0485316fc

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