Malicious PDF — malware analysis report

Static analysis result for SHA-256 34bd442d64737e73…

MALICIOUS

PDF

43.1 KB Created: 2020-10-15 23:30:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-11
MD5: 3ab8881172b9732729ede0c54e310a41 SHA-1: 6076f423d50ecf88aa8b8a3413ac4a5ed3133f9a SHA-256: 34bd442d64737e7364237118ddbc44fb744efda5e747041a76f38f95087ab736
94 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'ggtraff.ru'. The ML classifier also strongly flagged this PDF as malicious. While no scripts were extracted, the embedded URLs and the nature of the redirector suggest an attempt to lure the user to a malicious site, likely for phishing or to download further malware. The document body contains obfuscated text and URLs, reinforcing the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/strik?keyword=anjaana+anjaani+songs+download+wapking In PDF document text
    • https://cdn-cms.f-static.net/uploads/4366993/normal_5f8744592ee32.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369936/normal_5f88b0b0673e3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369329/normal_5f880af234197.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368964/normal_5f878cfc69caa.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367952/normal_5f87ea9bd78cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365541/normal_5f87f415094fe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368485/normal_5f878576b4dca.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367311/normal_5f88a4368f48e.pdfIn PDF document text
    • https://site-1043581.mozfiles.com/files/1043581/xiwezokimetizipuzidepa.pdfIn PDF document text
    • https://site-1040215.mozfiles.com/files/1040215/52655173262.pdfIn PDF document text
    • https://site-1043763.mozfiles.com/files/1043763/95221265082.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4368750/normal_5f881c11d45fd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365552/normal_5f8763faa2e87.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366382/normal_5f883a1d15c29.pdfIn PDF document text
    • https://site-1040668.mozfiles.com/files/1040668/newejolafixij.pdfIn PDF document text
    • https://site-1037024.mozfiles.com/files/1037024/82247611948.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/3bb93ef4-69b7-4b07-ad57-814585f7562d/seradelojepixigusidigubo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/006e9ee8-16d4-455e-88f7-c7ec28bc6de8/xuvupem.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004d5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4D5F 5252 bytes
SHA-256: e0d6bee69595da69f3370aa7f2a10fc41728f33b9675a390b80cfa4e9ec602e1
font_01_sfnt_off00005f6f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F6F 13620 bytes
SHA-256: cf83c1bd36bd11b51b6cfe620855093fe4b0431ecfd9b1a6a6928845b405937c
font_02_sfnt_off00008a25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A25 16096 bytes
SHA-256: 61761e6c71fdd980502ce8a3a8cbf9590216241eb9eabe72fdf309a1c23cd3c2

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