Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2798fe0d0989183…

MALICIOUS

PDF

77.7 KB Created: 2021-03-18 09:26:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-21
MD5: 524891b55b574052f391d2184b9d4484 SHA-1: 24df8d7df5204cbd746f5557aec5f7508187a009 SHA-256: e2798fe0d0989183d55828ac2938bc081b9f0685e241b13a31563f6de1e09e27
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI pointing to a suspicious domain, which is likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, contains keywords related to lawn mower parts, suggesting a lure to entice users to click the malicious link. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://jacksth.ru/strik?utm_term=snapper+riding+lawn+mower+parts+near+me PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4420240/normal_603f45c4c5ebd.pdfIn PDF document text
    • http://nejevefivi.mypressonline.com/dogedinisavakogawunule.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417220/normal_601e4feba2ef5.pdfIn PDF document text
    • http://rejorevubirobu.sportsontheweb.net/att_4_handset_cordless_answering_system_manual.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4405181/normal_60112acb47418.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382193/normal_5fe93c894208d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4481684/normal_603701567bc5d.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4455399/normal_600484871e10e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4414687/normal_5ffe4745f0641.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425784/normal_5fcb972a74c4f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4382004/normal_6016b39e0dea2.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/xeroguru/o_uraguai_basilio_da_gama_livro.pdfIn PDF document text
    • https://s3.amazonaws.com/legenapi/ganapathi_dj_songs_telugu_wapwon.pdfIn PDF document text
    • https://s3.amazonaws.com/zarevizebi/48277198298.pdfIn PDF document text
    • https://s3.amazonaws.com/gumegulaxi/2961572870.pdfIn PDF document text
    • https://s3.amazonaws.com/pugomonapoxuxe/now_tv_apk_amazon_fire.pdfIn PDF document text
    • https://s3.amazonaws.com/geradi/51991950585.pdfIn PDF document text
    • https://s3.amazonaws.com/pojikovewijeja/what_are_the_6_principles_of_graphic_design.pdfIn PDF document text
    • https://s3.amazonaws.com/vibuvomomuv/maltrato_psicologico_al_adulto_mayor.pdfIn PDF document text
    • https://s3.amazonaws.com/vutame/kufilofi.pdfIn PDF document text
    • https://s3.amazonaws.com/xazarujokemus/avakin_life_apk_mod.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bb27d76f-18d1-4644-adcb-e06f5caa147c/25482767231.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/85fee137-313e-4299-9a3f-256f4b5af782/weber_recipe.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_off0000f2bf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2BF 5472 bytes
SHA-256: 75b877e6196d3465846db88a10ffc0d248bb66dd49601b2d2a6383fd9f7068c3
font_01_sfnt_off00010557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10557 10572 bytes
SHA-256: b947599a6e77dc20bbc65f7166ea7524e7482da0bd114b8cccf77060f429364d

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