Malicious PDF — malware analysis report

Static analysis result for SHA-256 013ab63ee976ed96…

MALICIOUS

PDF

72.9 KB Created: 2021-03-04 09:45:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 23495260db1cf822250f93345914c473 SHA-1: 1cc8398ca3f7d053ea1b0c9b3105413900ff1748 SHA-256: 013ab63ee976ed96aa279b7c1ce6d84c41f66345ba3c87b2e82752a5cd91340a
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://vilenefex.ru/wix?keyword=reflection+of+light+worksheet+grade+5 PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4386335/normal_602c1cca0241d.pdfIn PDF document text
    • https://cdn.sqhk.co/guzoladip/fUlhcid/wasesobigetegerifibitefiv.pdfIn PDF document text
    • https://taboxataxenigo.weebly.com/uploads/1/3/4/1/134108556/sugatozosuzal_dorexopewokusa_melesozuvor_digivumazaw.pdfIn PDF document text
    • https://koloputumoti.weebly.com/uploads/1/3/4/8/134887370/5370500.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4459328/normal_604036fd39d5c.pdfIn PDF document text
    • https://cdn.sqhk.co/pixorikibam/jhCjegi/bojitusalelev.pdfIn PDF document text
    • http://xuvalikamug.22web.org/97185227179.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471512/normal_600343e6abd31.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4410206/normal_5fdc1f90951f6.pdfIn PDF document text
    • http://logmeinnow.xyz/scientific_method_projects_7th_gradeid842.pdfIn PDF document text
    • http://jobware.pro/luvumejomogofenamubndl84.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pekesapawej.epizy.com/moving_flexagon_template.pdfIn PDF document text
    • http://vodipofasofuf.rf.gd/video_editor_for_pc_64_bit.pdfIn PDF document text
    • http://vaburerewixa.rf.gd/4031554115.pdfIn PDF document text
    • http://jumuvurerurulap.rf.gd/59290843774.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d374.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD374 5360 bytes
SHA-256: 44889b10a36f733e35733a40b80482588d8e67ba31217de0bfdb1d4d0c97dd18
font_01_sfnt_off0000e5bb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE5BB 10236 bytes
SHA-256: 540ca0ef5480c7238a1fc0200cb9f34b56808d512f79888449c083b908084fcd
font_02_sfnt_off0001087c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1087C 4324 bytes
SHA-256: a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f