Malicious PDF — malware analysis report

Static analysis result for SHA-256 7d239e9ec94ebda8…

MALICIOUS

PDF

72.2 KB Created: 2021-04-20 02:07:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-29
MD5: d4dff4e3b66ccaea337bab41ac1979fb SHA-1: 11032dab1cb6921272c715389ba621f15c29c8aa SHA-256: 7d239e9ec94ebda8449407728a06d94f72a65046039ad02b181d510d82289dda
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-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/strik?utm_term=gecko+spa+control+box PDF link annotation
    • https://cdn.sqhk.co/nutewakizi/d60cEW0/vexed_crossword_clue_6_letters.pdfIn PDF document text
    • http://turogitirimutax.22web.org/miguel_street_chapter_10_summary.pdfIn PDF document text
    • http://cparta.moscow/32080648836rgc7q.pdfIn PDF document text
    • http://jetanevuv.iblogger.org/administrative_management_theory.pdfIn PDF document text
    • https://cdn.sqhk.co/jefulajidi/jhhdMhj/burger_25_toms_river_nj_menu.pdfIn PDF document text
    • https://cdn.sqhk.co/naliwanik/BijjgfE/73231488863.pdfIn PDF document text
    • http://itslm.fun/45835634333lwwmm.pdfIn PDF document text
    • http://torgservis-rus.ru/nccn_guidelines_colorectal_cancer_201934zg4.pdfIn PDF document text
    • https://cdn.sqhk.co/wugolekufo/gNgggdf/astro_hide_and_seek_mp3_download_ilkpop.pdfIn PDF document text
    • http://autocredit.moscow/79700234770019bz.pdfIn PDF document text
    • https://cdn.sqhk.co/tusufawenu/CjdjaI9/car_neon_race_lightning_mcqueen.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/zidosozawok/25157756243.pdfIn PDF document text
    • https://s3.amazonaws.com/jeponowon/kexabozilavuzezejudomel.pdfIn PDF document text
    • https://s3.amazonaws.com/zesotat/which_nitrogen_bases_are_present_in_dna.pdfIn PDF document text
    • https://s3.amazonaws.com/lolaritemukole/clasificacin_del_derecho_procesal_civil.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/icd_10_cm_coding_guidelines_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/vizegemawokaxe/nakizokanipilewabuxuwe.pdfIn PDF document text
    • https://s3.amazonaws.com/zidosozawok/jozuzulatefidexorexe.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/budegal.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_off0000dd87.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD87 5228 bytes
SHA-256: 13f8eaf3b681535152af0c3e878795f253f9ccc52a71176e4d01abce4fd56130
font_01_sfnt_off0000ef6b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF6B 10308 bytes
SHA-256: 42288094714ccca75a94cfddba69df7884c58d961799f640dcb3e157b102e143

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