PDF static analysis report

Static analysis result for SHA-256 28a2b49326c9592d…

SUSPICIOUS

PDF

48.0 KB Created: 2020-11-09 13:40:04 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 65bf2fa3de2489c241f9db500bd6312f SHA-1: 9a0cb820b3057ea77fc08e2620435daa1e40efec SHA-256: 28a2b49326c9592dfc3929f21489ecba76e871076903b34ed4c8515de21b6b6c
36 Risk Score

Malware Insights

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

The PDF document contains an embedded URL that directs users to a suspicious domain. The document body, though heavily obfuscated, appears to contain text related to a book title, likely serving as a lure. The presence of an external URI and the ML classifier's high confidence score indicate malicious intent, likely to redirect the user to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 3

  • 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://trafffe.ru/123?keyword=morganville+vampires+14+read+online PDF link annotation
    • https://rogumine.weebly.com/uploads/1/3/4/4/134448770/negekowubenulatarame.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413240/normal_5f973a3657f67.pdfIn PDF document text
    • https://gazesomudari.weebly.com/uploads/1/3/1/0/131070071/zezasajikuwew.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4385213/normal_5f90a3d16882f.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4378151/normal_5f8c55be2f53a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366630/normal_5f9286cf93b36.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4445749/normal_5fa00de6c0671.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383929/normal_5f8e6a4416b32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369158/normal_5f8ffe0db0c2a.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/jifesu/kavikarotalutobij.pdfIn PDF document text
    • https://s3.amazonaws.com/wixamupelinere/bedeso.pdfIn PDF document text
    • https://s3.amazonaws.com/virumutipalis/mebejobi.pdfIn PDF document text
    • https://s3.amazonaws.com/zonivezada/sony_xplod_1000w_amp_rms.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2ca3c026-ecd3-4a7d-b18a-f169c900e086/la_historia_del_loco_resumen_por_partes.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6372ab84-b337-47f1-85fa-39ed1a044ba9/daxam.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_off00007c38.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C38 5484 bytes
SHA-256: ebb84856e5b54290b92bf297d5de25e853ff8c2f717a58d7b785fb36605d3161
font_01_sfnt_off00008ee8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8EE8 10664 bytes
SHA-256: 76200f04fb2ee38d5c60a7be7db8e835ba6938c52e1bce6e6b6094fb74979b38