Malicious PDF — malware analysis report

Static analysis result for SHA-256 9acaae9d69e9685f…

MALICIOUS

PDF

76.0 KB Created: 2021-03-03 19:11:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b27e1e938a1a68995235fee618f12f6f SHA-1: c5c2cd2e6097d2ef91f33c2dfed054ba7ee738e1 SHA-256: 9acaae9d69e9685f6aff97ec87d3500a7912b4532d9caa0cb7dc77134dab445a
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://dugedepap.ru/123?utm_term=gaggia+brera+super+automatic+espresso+machine+review PDF link annotation
    • http://aicberg.net/ridgid_tp1300ls_planer_priceizh4b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4484356/normal_6001c7303f8e5.pdfIn PDF document text
    • https://ramageputa.weebly.com/uploads/1/3/1/6/131637054/9760482.pdfIn PDF document text
    • https://somubafe.weebly.com/uploads/1/3/4/4/134444697/a3ae49803d042a6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411500/normal_6026f6d627059.pdfIn PDF document text
    • http://ru-en.xyz/23751312074ae6vj.pdfIn PDF document text
    • https://namekabesomi.weebly.com/uploads/1/3/4/6/134668803/gizumosuwu_budoja.pdfIn PDF document text
    • https://mujaxelixoduren.weebly.com/uploads/1/3/3/9/133997177/gosedizid.pdfIn PDF document text
    • http://visionnew.xyz/khufra_hero_guidesg3ga.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4499309/normal_601ab3d0e7c5e.pdfIn PDF document text
    • http://1xbet-regi.site/actualizar_marcadores_chrome_androidy0had.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389107/normal_5fd7a386a939a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421629/normal_603082f9638ea.pdfIn PDF document text
    • http://clubstore.pro/moped_parts_manual40b3h.pdfIn PDF document text
    • https://winojarenegesut.weebly.com/uploads/1/3/4/4/134481716/fiterinabajoseg-tewizewitek-davegemugo.pdfIn PDF document text
    • https://sepetumeba.weebly.com/uploads/1/3/4/6/134601334/5634298.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/nitizobuv/83573182523.pdfIn PDF document text
    • https://s3.amazonaws.com/jolunenafobuw/18900471957.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_off0000ec2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC2C 5636 bytes
SHA-256: 5ad8cc8baac7d0ba20580000c0cc12c2c403b8912097eb1d819f119145418af0
font_01_sfnt_off0000ff44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF44 10284 bytes
SHA-256: a5f5d35e2b0c2efc171fd7b1a71be16c3c776e510a633f11b4eec1b6336a01ca

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