Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e9f30423df9c6db…

MALICIOUS

PDF

68.3 KB Created: 2021-02-15 02:07:58 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 6a2959d5811f6b30eb807bff3adabaed SHA-1: ede0695cb95460ec47d8b3e6ea63d68f0b2cf400 SHA-256: 2e9f30423df9c6dbd3898528fd181c7307ad3e495f7918ca43dc6343dc62f16e
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://bologen.ru/wb?keyword=risk%20analysis%20template%20powerpoint PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4468255/normal_5fe10a79a2d15.pdfIn PDF document text
    • https://poduxerot.weebly.com/uploads/1/3/0/7/130776630/7397455.pdfIn PDF document text
    • https://piborubaladedos.weebly.com/uploads/1/3/4/7/134764427/9772402.pdfIn PDF document text
    • https://navitadewota.weebly.com/uploads/1/3/4/0/134017874/c0d63aae95ca.pdfIn PDF document text
    • https://nukofagola.weebly.com/uploads/1/3/4/8/134883999/tirapenid.pdfIn PDF document text
    • https://fogujudusimasob.weebly.com/uploads/1/3/4/7/134713994/gozajagekiku.pdfIn PDF document text
    • https://duvarifa.weebly.com/uploads/1/3/5/3/135347264/f312d5a2.pdfIn PDF document text
    • https://zeberafuduzugag.weebly.com/uploads/1/3/2/6/132682167/4089142.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387932/normal_6019388bc557c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410015/normal_5fcd5c7218699.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451940/normal_5fd1b01a255fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366666/normal_5fe742692f68d.pdfIn PDF document text
    • https://wabobileminila.weebly.com/uploads/1/3/5/4/135400898/gikolezu-buminefaxa-zumufiwuketo-kowubipikobox.pdfIn PDF document text
    • https://nojokuvevufig.weebly.com/uploads/1/3/4/1/134109253/3433c4c3f29efe.pdfIn PDF document text
    • https://nakalefa.weebly.com/uploads/1/3/4/5/134522788/ec9cb2e5b.pdfIn PDF document text
    • https://nexitikobimefa.weebly.com/uploads/1/3/0/7/130776699/9427117.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fabonek.rf.gd/kikixilinepoma.pdfIn PDF document text
    • http://zekarevuwo.epizy.com/menagazep.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_off0000d066.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD066 5228 bytes
SHA-256: e11d00a692e7ab3703245779b7bc1df0cba2dcda1001dd9f38f2465656242590
font_01_sfnt_off0000e23c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE23C 9956 bytes
SHA-256: 9047a6e689409b9a8cbb3f6e5f9dde2a752564408a3d82e012422284249f2b0a

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