Malicious PDF — malware analysis report

Static analysis result for SHA-256 00e5625057ae1136…

MALICIOUS

PDF

51.0 KB Created: 2020-09-01 07:23:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a32e4baf4b6f25897050625f7986b9aa SHA-1: 97a48900ecdd9cadc94c553e4e6c498bff00e6c4 SHA-256: 00e5625057ae1136f732ee05940d220fd90714b8936b1d4b67c1134e98f25042
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a critical heuristic firing indicating a malicious redirector link to 'https://ttraff.cc/wix?keyword=react+template+jsfiddle'. This URL is likely used to lure users to a malicious site for phishing or to download further malware. The ML classifier also strongly flagged this PDF as malicious.

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://ttraff.cc/wix?keyword=react+template+jsfiddle
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/53681635306.pdf
    • https://cdn.shopify.com/s/files/1/0434/0147/8300/files/gowolepumomanatapux.pdf
    • https://cdn.shopify.com/s/files/1/0462/3466/5114/files/prize_ballot_template.pdf
    • https://cdn.shopify.com/s/files/1/0435/2756/9576/files/journal_of_biogeography_author_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0433/9128/7450/files/real_vocal_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/5913/4112/files/there_is_and_there_are_exercises_for.pdf
    • https://static.usrfiles.com/ugd/7e6083_f0f6a4fa9e664acab18f15b138ac1e94.pdf
    • https://static.usrfiles.com/ugd/b8c837_fd6c8e0a3cb7448b9d2ccae6fdfe30c9.pdf
    • https://static.usrfiles.com/ugd/b8c837_ed96ab30fe9b4985bb31f55e0049d212.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005b7e.bin
ac0b91c00e775eca265c5fbd6af1ea3693b3c471848ad9d6381e68191d9d7ab8
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B7E 5288 bytes
font_01_sfnt_off00006d70.bin
eb369e801261565152092c86c226287f4ce08fa7385076cf957b2dea2a36d75c
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D70 7512 bytes
font_02_sfnt_off0000827d.bin
e0df66bd8935efe7aa360fa7b4ecb576fe02ea05f1aa380e823931e96d441c3f
pdf-font-stream PDF embedded font (sfnt) at offset 0x827D 10400 bytes
font_03_sfnt_off0000a65a.bin
f73699071d93be72d95c47ce74a6c8d68b7d38a341703eec6f4e158eaedeb122
pdf-font-stream PDF embedded font (sfnt) at offset 0xA65A 16760 bytes