Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecd4d566b1ed6504…

MALICIOUS

PDF

76.6 KB Created: 2021-02-22 08:43:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: c25bce3e27e42b0042f81f99cca4fbe8 SHA-1: 53794d0e41a615f9a0eaf65233492db6725aa3ec SHA-256: ecd4d566b1ed65041f8fb76bf0e94f6820dde6a5f353e5bb4c7b257c3b6c528c
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-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/strik?utm_term=i%2527ll+be+gone+in+the+dark+imdb+episodes PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4387419/normal_5fdfbaa5887ef.pdfIn PDF document text
    • http://tur8osale.site/begrijpend_lezen_groep_3csi8r.pdfIn PDF document text
    • http://stc-l.ru/23151287330b9kil.pdfIn PDF document text
    • https://cdn.sqhk.co/givogaduta/zmgdOPE/green_the_planet_2_cheats.pdfIn PDF document text
    • http://invitesistem.ru/81249019768m8hxz.pdfIn PDF document text
    • http://polikarmonolit.ru/what_is_the_central_concept_of_personal_development_and_career_planningppry0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4426697/normal_5feb9aa539fbf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4531626/normal_6004e95279e5c.pdfIn PDF document text
    • http://medtechnika1.ru/9653385526507hbx.pdfIn PDF document text
    • http://toolsbestpricemicrometer.site/shatta_wale_ft_beyonce_already_mp4r26p0.pdfIn PDF document text
    • http://worldworkbook.com/117346021136y0me.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4477373/normal_5fe3a37659b3f.pdfIn PDF document text
    • http://sikirizev.22web.org/jupuxutiwug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://jevusavisa.epizy.com/fovakemavon.pdfIn PDF document text
    • http://kemubozureta.epizy.com/math_drills_com_answers_key_distributive_property.pdfIn PDF document text
    • http://tumirukilifu.rf.gd/du_sol_2nd_year_form.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_off0000deda.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDEDA 5336 bytes
SHA-256: 32aa33891e79be5aca9032a4a5617ad5416dd2c8c9e15c90b6ca2d18e238abb4
font_01_sfnt_off0000f0c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF0C3 11376 bytes
SHA-256: 78543b1543c1fc0cd50880708d1a104aa2d05ab7307565ceb9fc57953fdf259b
font_02_sfnt_off000116d8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x116D8 4324 bytes
SHA-256: 0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333