Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ade000227c14e51…

MALICIOUS

PDF

49.3 KB Created: 2020-11-06 20:15:27 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 055ef715b2f69461c52f7ef5c59802e9 SHA-1: 14282b5699490996801daa6c21b58f9408157fe3 SHA-256: 5ade000227c14e51a7da7a72ed291283704d9b3b2e58aba542fd4b6a99519128
154 Risk Score

Malware Insights

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

The PDF contains numerous links, with one specifically identified as a malicious redirector pointing to 'https://ggtraff.ru/aws?keyword=plazma+burst+hacked+unblocked'. The document body, though heavily obfuscated, also contains this URL, suggesting an attempt to drive traffic to malicious infrastructure. The presence of many external PDF links indicates a link farm strategy, likely for SEO manipulation or to host further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • 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.
  • 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.
  • 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=plazma+burst+hacked+unblocked
    • https://jusujonolixutuw.weebly.com/uploads/1/3/1/3/131379247/4848509.pdf
    • https://cdn-cms.f-static.net/uploads/4368226/normal_5f87a5b7eb7d4.pdf
    • https://cdn-cms.f-static.net/uploads/4366362/normal_5f8e06d24d960.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://uploads.strikinglycdn.com/files/878e9925-e5e8-4812-8897-9a8415e89964/30972262275.pdf
    • https://s3.amazonaws.com/xifabilejilab/76648034461.pdf
    • https://ruvopesej.files.wordpress.com/2020/11/400_years_unblocked_games.pdf
    • https://fidunonip.files.wordpress.com/2020/11/madelizopididam.pdf
    • https://sagegaxojem.files.wordpress.com/2020/11/69214347818.pdf
    • https://lodoxepal.files.wordpress.com/2020/11/vibinofa.pdf
    • https://s3.amazonaws.com/zetare/bidawozosenuxujasigol.pdf
    • https://nenopakesobu.files.wordpress.com/2020/11/23589600596.pdf
    • https://s3.amazonaws.com/tojabixefova/wovije.pdf
    • https://dijerage.files.wordpress.com/2020/11/sijifezizogafabojixefijo.pdf
    • https://s3.amazonaws.com/divexikav/vasogefelop.pdf
    • https://uploads.strikinglycdn.com/files/61ef3d12-45d9-48b1-a021-f6a851bcf1ba/fifedegasufisubiti.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
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006c69.bin
b6569bc3331fc3891d9c82e54a861e2a5ce974a241c0eb82afa6966cab6dcfa6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C69 5432 bytes
font_01_sfnt_off00007eb8.bin
36f07d867798c7da08ad743a8b0e88c6b8c55805ac8895c292802c2e33eacac0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7EB8 10732 bytes
font_02_sfnt_off0000a2ac.bin
7e63eb3bed9c4ceaf47e86587cf77a789dba98dd2b4db382f0c7f052a0aeb8ce		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA2AC 16160 bytes

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