Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef0ad9ae33fd0f32…

MALICIOUS

PDF

98.0 KB Created: 2021-04-15 17:14:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 9b5fb8e35aa0693e1fa16605a36454de SHA-1: bd9dcc6cc152d786692850966ce6f8e59d605c63 SHA-256: ef0ad9ae33fd0f324e8061b98079e707dd13faa378ed72f92a346b5f1773deee
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://jumiwimov.ru/strik?utm_term=where+to+watch+cloud+9 PDF link annotation
    • http://ebay-coupon.ru/23201754546h4jou.pdfIn PDF document text
    • http://flathead.us/shopping_cart_wheels_meme_templatez6oz7.pdfIn PDF document text
    • https://tukobigerokigab.weebly.com/uploads/1/3/4/6/134653943/sufuxaj_dekunuvisofob_sazovena_melaxokibovu.pdfIn PDF document text
    • https://xizuxikeg.weebly.com/uploads/1/3/0/7/130740292/zinopawasale.pdfIn PDF document text
    • http://luminar3-download.xyz/brother_hl-2270dw_toner_cartridge938id.pdfIn PDF document text
    • http://basujoj.22web.org/48542415870.pdfIn PDF document text
    • http://sedouche.xyz/978161795491ukwk.pdfIn PDF document text
    • https://jopokiwajisi.weebly.com/uploads/1/3/4/1/134108554/tupuk.pdfIn PDF document text
    • http://thedouche.xyz/63911994022jigdq.pdfIn PDF document text
    • https://rosajojuzexoked.weebly.com/uploads/1/3/0/8/130874599/960a3cf47727.pdfIn PDF document text
    • http://mediaverifiedbadge.com/fronius_ig_plus_state_212e87x9.pdfIn PDF document text
    • http://wordsideget.top/what_factor_affects_the_average_temperature_of_a_region8k0v6.pdfIn PDF document text
    • http://twitter-center.com/lectura_comprensiva_para_nios_de_prmyduy.pdfIn PDF document text
    • https://tibijipobarak.weebly.com/uploads/1/3/4/4/134493900/6218695.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/rotowan/vofafowejiwaziravig.pdfIn PDF document text
    • https://s3.amazonaws.com/pisedij/font_bonbon_bold.pdfIn PDF document text
    • https://s3.amazonaws.com/budovewesekaz/2016_jeep_cherokee_trailhawk_user_manual.pdfIn PDF document text
    • http://vupikefugogulup.epizy.com/xekijiboxef.pdfIn PDF document text
    • https://s3.amazonaws.com/xewamejixolefaj/how_to_become_certified_proofreader.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_off0001423c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1423C 5112 bytes
SHA-256: 35efb770332009a848ac601a58727b493344cc68e6671164e4ff12dd28ff722b
font_01_sfnt_off000153ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x153AE 11280 bytes
SHA-256: a118dca3bfb78f81a20253abc720132b60ae23d6511deed6c39187c06e104657

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