Malicious PDF — malware analysis report

Static analysis result for SHA-256 b09ea2eed5fd4e67…

MALICIOUS

PDF

65.1 KB Created: 2021-01-06 10:59:39 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-02
MD5: 5d99689733c05995c62ccfe4eda33b8b SHA-1: e83b25e5c65a42f7ba4199bf6343e6e06625293e SHA-256: b09ea2eed5fd4e678e4831f553c78df49f3e4ed7421e732f98ba1cb31034ce21
156 Risk Score

Malware Insights

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

The PDF file contains numerous external links, with a critical heuristic identifying it as a link farm. The embedded URLs, such as 'https://trafficel.ru/aws?utm_term=bharata+simha+reddy+cinema+ing', suggest a potential phishing or SEO manipulation scheme. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

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 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.
  • 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://trafficel.ru/aws?utm_term=bharata+simha+reddy+cinema+ing PDF link annotation
    • https://xojuliwujugiseb.weebly.com/uploads/1/3/4/3/134388488/buneninajubesokibano.pdfIn PDF document text
    • https://kegegofelev.weebly.com/uploads/1/3/2/6/132681159/0bbc3efd.pdfIn PDF document text
    • https://vigajinid.weebly.com/uploads/1/3/4/8/134889024/ribubusaziw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4501659/normal_5fb2a20c6fc73.pdfIn PDF document text
    • https://ferutijuze.weebly.com/uploads/1/3/1/8/131856408/zusedabojo-nawepiwunodusa.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/zalisujezajaje/pleasure_gardens_destiny_2_guide.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4222c0a0-cfb4-49d7-b25f-00dbd3bb9c63/situacion_didactica_de_pintores_mexicanos_preescolar.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/1f38e2cc-4d2d-4fb2-be0c-c23dcbd71134/23394534279.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c267dacd-69fa-4edc-b833-3fcafbed3bb9/photo_collage_maker_for_pc_offline.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f7e4021-0829-49d1-b023-cacdbcbe683d/zalejofetugofopilitave.pdfIn PDF document text
    • https://s3.amazonaws.com/tigewibejageju/sisinozoluvimoredi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/ff5ee9b1-9171-4500-958f-1c7c6e10afff/castle_clash_private_server_apk_download_2019.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_off0000c39e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC39E 5472 bytes
SHA-256: 6a8778fb8fc2d55ce12afeb17295a169458a905c44ba465797c180c1ed9631d2
font_01_sfnt_off0000d61a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD61A 9668 bytes
SHA-256: 8dd2e68b88a5d4b6d624ebcc9937cea5bb086f912f015046bfa9f351eb124217

Open this report in the interactive analyzer, or submit your own file for analysis.