Malicious PDF — malware analysis report

Static analysis result for SHA-256 de0a89012b093529…

MALICIOUS

PDF

79.6 KB Created: 2021-04-05 02:07:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ec519a9ce71b27f347ccc39d85ee8aa6 SHA-1: b2fc875fed065c3a8dcf1bc8f91a9823600658da SHA-256: de0a89012b09352985cb0eadff7594688726b573988b40969b42f84819f316c1
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'https://xezojetit.ru/123?utm_term=vat+form+calculator+germany', which is likely intended to deliver a secondary payload or redirect the user to a phishing site. The document body, though heavily obfuscated, contains text related to 'Vat form calculator germany', suggesting a social engineering lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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=vat+form+calculator+germany PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4475739/normal_601a2d1235356.pdfIn PDF document text
    • https://cdn.sqhk.co/bozadukopufu/dMggffW/59262813544.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4460471/normal_603108ade9054.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvopone/czohdij/man_down_tv_show.pdfIn PDF document text
    • https://cdn.sqhk.co/dewozoju/hixigjb/24302975081.pdfIn PDF document text
    • https://cdn.sqhk.co/wofetewa/b7RQIip/cash_app_sign_up_without_bank_account.pdfIn PDF document text
    • http://dujegud.getenjoyment.net/different_types_of_air_conditioning_systems.pdfIn PDF document text
    • http://eduha.online/how_to_clean_samsung_dishwasher_model_dw80j3020usefktb.pdfIn PDF document text
    • https://cdn.sqhk.co/levuzivanu/on922zz/bazusupanejip.pdfIn PDF document text
    • http://idealslimitalia-official.site/4168254046413qsc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4402711/normal_606a372d2f761.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4407997/normal_5fd273b41bf4c.pdfIn PDF document text
    • https://cdn.sqhk.co/letabuner/iRjcc34/52024809697.pdfIn PDF document text
    • http://juwatorota.22web.org/marriage_anniversary_pic_hd.pdfIn PDF document text
    • http://pedagodogiko.getenjoyment.net/erikson_8_stages_of_psychosocial_development_chart.pdfIn PDF document text
    • http://arendagg.xyz/343679314629w031.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4446773/normal_601b7aea5d676.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://bogalibamadom.myartsonline.com/gerizusogufezowasevo.pdfIn PDF document text
    • http://bozalusi.epizy.com/jidenna_bambi_lyrics_video.pdfIn PDF document text
    • http://sidinikoxa.epizy.com/gijirapovikujedexiveb.pdfIn PDF document text
    • http://xajumin.epizy.com/plugin_android_chrome_browser.pdfIn PDF document text
    • http://pajuxiral.rf.gd/girlfriend_by_bukunmi_oluwasina.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e624.bin
883966bea5f5c25f52915b807470d0fe186cd4d3e9eac9b4ec2e4ae86e0c94ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE624 5092 bytes
font_01_sfnt_off0000f771.bin
bdd94ceca57bd7d42663c2d29decae2658a6c453d400e0229f08352c0e8e5aba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF771 10696 bytes
font_02_sfnt_off00011c30.bin
8429237fcd208046732dac0a1d3d9e050e1ac7d6002e8beabdb17c1f23499229		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11C30 16084 bytes

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