Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0cd9a74473a5939…

MALICIOUS

PDF

148.3 KB Created: 2020-11-06 19:10:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 750ee000d8e3a657bc8a37a725f5c5a6 SHA-1: 623ebc4ab924abf0cd1595c84fe9c06b05e97758 SHA-256: b0cd9a74473a5939ff6dfa1f6f8fa9262cdb75ed5e43bc5dfa8434af002c263a
94 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ggtraff.ru, which is designed to lead users to further malicious sites. The ML classifier also strongly indicated maliciousness. The embedded URL is likely part of a phishing or malware distribution chain, aiming to lure users to download further payloads or submit credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

Heuristics 3

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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://ggtraff.ru/aws?keyword=s+j+montgomery+elementary+school+lafayette
    • https://vozunutav.weebly.com/uploads/1/3/0/9/130969695/radurajibumusofijuw.pdf
    • https://cdn-cms.f-static.net/uploads/4374957/normal_5f9102f421010.pdf
    • https://cdn-cms.f-static.net/uploads/4420039/normal_5fa39be5117d4.pdf
    • https://bafovulik.weebly.com/uploads/1/3/1/0/131070506/1096152.pdf
    • https://gogebuzavoriro.weebly.com/uploads/1/3/2/6/132681212/vukatibo.pdf
    • https://cdn-cms.f-static.net/uploads/4426267/normal_5f9af01cdc8a1.pdf
    • https://cdn-cms.f-static.net/uploads/4370560/normal_5f9e270a8303f.pdf
    • https://gidepojijozi.weebly.com/uploads/1/3/4/2/134235950/3954059.pdf
    • https://cdn-cms.f-static.net/uploads/4413578/normal_5f9fd6e6d4348.pdf
    • https://cdn-cms.f-static.net/uploads/4369765/normal_5f87e5a1d75ad.pdf
    • https://cdn-cms.f-static.net/uploads/4372985/normal_5f926a6e29dad.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/f3ea7149-f1b5-4906-95a4-2acf9cf4214b/poruvanig.pdf
    • https://uploads.strikinglycdn.com/files/b26069ed-f165-469f-96cd-15d239d2fa1d/viruwukodu.pdf
    • https://uploads.strikinglycdn.com/files/8e1244dd-630f-4e78-99db-561a6efb9264/xajejovata.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00020b87.bin
7b74d0260dc695bbcfec31ce8c8451d2963bfd5e4fcf583ec48f4e807b161e78		 pdf-font-stream PDF embedded font (sfnt) at offset 0x20B87 5576 bytes
font_01_sfnt_off00021e61.bin
dd61f6f2dcbfd4e7e4985758a9c40717e1c991bd2e7aa76f3077b2744cff0f9b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x21E61 10812 bytes

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