Malicious PDF — malware analysis report

Static analysis result for SHA-256 57020c4babab5407…

MALICIOUS

PDF

48.1 KB Created: 2020-08-31 19:59:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b62db72b905c141a6128c8ddba7a53b8 SHA-1: 479dfb26a7572dfbe748168af6fab4f0f7e31a01 SHA-256: 57020c4babab540708ad618eb6862f8cd374e131570220500dccd61eb3463665
90 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing indicating a malicious redirector link. The embedded URL, https://ttraff.cc/pify?keyword=priest+bis+classic+spreadsheet, is the primary indicator of malicious intent. This suggests the document is designed to lure users to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://ttraff.cc/pify?keyword=priest+bis+classic+spreadsheet
    • https://static.usrfiles.com/ugd/ce5d00_f02e7d0a1c7d468ba56a735c7e2c1ad1.pdf
    • https://static.usrfiles.com/ugd/3d0627_0a55b9010025420dbe66bc4fd1fea698.pdf
    • https://static.usrfiles.com/ugd/b8c837_d05ce806e25141aa92bb4a89de07d8ea.pdf
    • https://static.usrfiles.com/ugd/9421c8_d06b6fee41c24421a6cf567e8a8cecab.pdf
    • https://cdn.shopify.com/s/files/1/0434/8212/0357/files/pulinelovuvilojajeri.pdf
    • https://cdn.shopify.com/s/files/1/0432/5366/1864/files/25695834819.pdf
    • https://cdn.shopify.com/s/files/1/0428/9649/0655/files/bootstrap_form_template_with_tabs.pdf
    • https://cdn.shopify.com/s/files/1/0429/0645/2127/files/gebezutikaxonowotisini.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_off0000706a.bin
f9dc0c52c3993ab0eb5d95d025e49a5ec92e6ded9ac944d0a7d097f885edb063		 pdf-font-stream PDF embedded font (sfnt) at offset 0x706A 4872 bytes
font_01_sfnt_off000080f4.bin
b085014b25f9d57ee38cc11d8884459052fc905305ea9fe961a35401eae1a7d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80F4 10968 bytes
font_02_sfnt_off0000a62b.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA62B 4324 bytes

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