Malicious PDF — malware analysis report

Static analysis result for SHA-256 b2c19bac1563f771…

MALICIOUS

PDF

74.8 KB Created: 2021-03-04 04:03:06 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7b5cc6b219072ab567a6b35cddd18058 SHA-1: 7c6736154ad6b73702100aa011d58323e4a24521 SHA-256: b2c19bac1563f7716f86b987edcd3e8cbb153a0a58cb663a4e350a7a817ac218
96 Risk Score

Malware Insights

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

The file is a PDF document identified as malicious by ML classifiers and ClamAV. It contains an embedded URL pointing to a suspicious domain, likely intended to host a phishing page or download further malware. The document body, though heavily obfuscated, suggests a lure related to 'predictions'. No scripts were extracted, but the PDF structure itself facilitated the embedding of the malicious URI.

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://xezojetit.ru/123?utm_term=metal+rooster+2021+predictions
    • https://jifofavara.weebly.com/uploads/1/3/4/6/134631997/laziteliti.pdf
    • https://cdn-cms.f-static.net/uploads/4462093/normal_601a3f4618981.pdf
    • http://matawobedopikam.mywebcommunity.org/76343793080.pdf
    • https://tarosukawumoteb.weebly.com/uploads/1/3/4/6/134691059/taxoribesafakir.pdf
    • https://cdn.sqhk.co/siripeka/ibieQij/jiomeet_download_for_pc_windows_10_64_bit.pdf
    • http://zememor.sportsontheweb.net/29835679809.pdf
    • https://cdn-cms.f-static.net/uploads/4366676/normal_5fe9c63b349a4.pdf
    • https://cdn.sqhk.co/xonepogafix/ialmjhv/marketing_strategy_template_2020.pdf
    • https://bexopugizabon.weebly.com/uploads/1/3/4/0/134042324/6d32398b55.pdf
    • http://babusokojanog.sportsontheweb.net/woodcock_johnson_test_of_cognitive_abilities_purchase.pdf
    • https://static.s123-cdn-static.com/uploads/4494430/normal_5fcddedd53699.pdf
    • http://ganitigusawev.mygamesonline.org/vicks_vaporizer_walmart.pdf
    • https://cdn.sqhk.co/fuvebopeweb/A4hhUsi/marketing_mix_example_coffee_shop.pdf
    • http://nout-sale.site/dantes_inferno_movie_synopsis4twze.pdf
    • https://static.s123-cdn-static.com/uploads/4413976/normal_5ff1f80836ed1.pdf
    • https://junafoxotoroj.weebly.com/uploads/1/3/0/7/130738975/vuxir_zetokirafa.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/metakibeme/fossil_crafting_poe_guide.pdf
    • https://s3.amazonaws.com/vuzufexarevima/vadevan.pdf
    • http://dokudaruriwiv.atwebpages.com/2984564483.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e78f.bin
25ba576d2d7079815cf445a7501e7855396adf14690a803fb27602524c710151
pdf-font-stream PDF embedded font (sfnt) at offset 0xE78F 5400 bytes
font_01_sfnt_off0000fa07.bin
7ea00921d4afe4ff0baf5400406c9c64eb5bcd82ffed2fdd24e8baf42f7bcdf1
pdf-font-stream PDF embedded font (sfnt) at offset 0xFA07 10568 bytes