Malicious PDF — malware analysis report

Static analysis result for SHA-256 35e6d4a541dd5b89…

MALICIOUS

PDF

45.6 KB Created: 2020-10-02 03:08:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 88b0b91d7a7c0895dff12e046114497a SHA-1: 12602933c2f81f906d08ca487fd116bd9957cdfd SHA-256: 35e6d4a541dd5b89e3fb6e628ce73499bc71c3c589ef6489168f009a5fc60b44
60 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://cctraff.ru/strik?keyword=frp+bypass+apk+8.+0, is the primary indicator of malicious intent. The document body, though partially corrupted, contains text related to 'Frp bypass apk 8.0' and the same malicious URL, suggesting a lure to trick users into visiting a potentially harmful site. No scripts were extracted from this sample.

Heuristics 2

  • 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.
  • 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://cctraff.ru/strik?keyword=frp+bypass+apk+8.+0
    • http://files.candisary.com/uploads/1/3/2/7/132740978/4508465.pdf
    • http://files.alphahcconsulting.com/uploads/1/3/1/4/131453560/zawuviwezomibop.pdf
    • http://files.stuarts2gabon.com/uploads/1/3/1/6/131606325/3997252.pdf
    • http://files.shapnatech.com/uploads/1/3/2/8/132814073/268686.pdf
    • https://uploads.strikinglycdn.com/files/cb237659-03f0-4269-b677-02b4a5086852/dezikibigusefonazerabex.pdf
    • https://uploads.strikinglycdn.com/files/64135339-fe66-4490-bfe4-3ddab0cb4245/14971459678.pdf
    • https://uploads.strikinglycdn.com/files/40a58e6e-4597-4b0a-bbdc-5a615ac05484/vovumewogu.pdf
    • https://uploads.strikinglycdn.com/files/ef38aaf5-935e-4ea4-8edc-6135c4308311/26116949346.pdf
    • https://cdn.shopify.com/s/files/1/0429/5091/8310/files/89382950811.pdf
    • https://cdn.shopify.com/s/files/1/0483/0494/7362/files/4166625082.pdf
    • https://cdn.shopify.com/s/files/1/0488/1825/8085/files/zubolaz.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/

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006529.bin
2bdac973bc0490bc1befd293a50a0a9c8580b5305222c27c7d400a5d80116e35		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6529 2868 bytes
font_01_sfnt_off00006f59.bin
7f84c344c27d325535251711f5533b59aeef260f846001f119625afabe61607e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F59 5412 bytes
font_02_sfnt_off000081d7.bin
253da4e367387fe33982621f430f42c9b203abfa7e14f46f30f2f0b1a9776b5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D7 12568 bytes

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