Malicious PDF — malware analysis report

Static analysis result for SHA-256 88e993877019e2e8…

MALICIOUS

PDF

83.8 KB Created: 2021-03-25 06:16:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: a4db580595fec142164675d3795f5f3b SHA-1: 169002ef0322c317a668f8dab1210c64023af512 SHA-256: 88e993877019e2e8b59da50f32f2df117afa16c5301e63577916937058a8644c
96 Risk Score
Tags
free-cdn-ebook-manual-lure

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 0.9997

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://xajibur.ru/strik?utm_term=dr.+gundry%2527s+diet+evolution+video PDF link annotation
    • https://cdn.sqhk.co/temegolu/3jdhfgi/tadaru.pdfIn PDF document text
    • http://mybestchan.online/zonawulosidepuwofojak0cok.pdfIn PDF document text
    • http://leoidet.xyz/24995322028rmbru.pdfIn PDF document text
    • http://apple-fruit.space/the_power_by_rhonda_byrne_in_hindimw196.pdfIn PDF document text
    • https://mebusogaduvorit.weebly.com/uploads/1/3/0/9/130969439/sufapofasusude-nenefev-saxajigapuxaliz.pdfIn PDF document text
    • http://choosenews.space/xaluvadorogapabuzikuwelowcmwyr.pdfIn PDF document text
    • http://ig-copyrightnotice.com/ejercicios_de_porcentajes_para_secundariagfu24.pdfIn PDF document text
    • http://m-laskin.ru/814637386360992t.pdfIn PDF document text
    • http://detonic-shop.website/pesaxetejekepykcr.pdfIn PDF document text
    • https://cdn.sqhk.co/rubogomuweme/PLhjij1/wobubugalateb.pdfIn PDF document text
    • https://cdn.sqhk.co/bomemenun/jhgciin/source_code_pro_for_powerline.pdfIn PDF document text
    • https://ruwatija.weebly.com/uploads/1/3/4/8/134846771/viterevu_ximepabojukof_pobumemol.pdfIn PDF document text
    • http://wgathering.org/how_to_reset_dish_home_setup_boxhugcl.pdfIn PDF document text
    • http://ig-copyrightnotice.com/water_slide_3d_vrg2vb5.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/temujonuwu/55605335046.pdfIn PDF document text
    • https://s3.amazonaws.com/bubeto/konujegefuzoretekarowu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/79b25b5c-a09b-4939-abb2-4070913ba89c/crock_pot_pork_loin_cooking_time.pdfIn PDF document text
    • https://s3.amazonaws.com/kosamupim/after_effects_templates_animation_free.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/5aeb1a3e-532c-4ff8-a7f5-57506872dd6a/63971035600.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/76298eff-1221-4a8f-8d73-35762f8a4fce/zekawokuxumupakanu.pdfIn PDF document text
    • https://s3.amazonaws.com/musoxifuvitalo/sogit.pdfIn PDF document text
    • https://s3.amazonaws.com/fusidejebi/51000076445.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_off000106ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x106EC 5008 bytes
SHA-256: 2b622b818e4ee8df811775035c7baf2292aad81468ddd34dbd64597306165c9c
font_01_sfnt_off0001182a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1182A 11868 bytes
SHA-256: a5349d0c01e84a0d21c69f074d273291f7d22c6713ebe641d102a74ff5ad709b

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