Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae10e4281d56445e…

MALICIOUS

PDF

47.4 KB Created: 2020-09-01 05:42:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6b78a0ab2cc34be2e3f9845ffe9e2ee6 SHA-1: a7795013c2fccd7ec3f5f6805c8e74d6d40a5d81 SHA-256: ae10e4281d56445efbf05acebcab8fabfbce82add1cfb255c781bf4722f8da15
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a known malicious redirector. The document body appears to be malformed or obfuscated, but the presence of numerous external links suggests a link farm or redirection scheme. This pattern is commonly used to distribute malware or conduct phishing attacks by directing users to malicious sites.

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.
  • 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.
  • 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=anticipatory+grief+scale+pdf
    • https://static.usrfiles.com/ugd/b8c837_5e3f30dc7ec04e13856d12694b8d1fbd.pdf
    • https://static.usrfiles.com/ugd/b8c837_1dce4846a3a849f1ab492667eb27d0f4.pdf
    • https://static.usrfiles.com/ugd/b8c837_1cbcdd66fa46440fabbe87efdfb1d3b1.pdf
    • https://static.usrfiles.com/ugd/8b2c09_ee1c73a1d5814a4184de46f62275e409.pdf
    • https://static.usrfiles.com/ugd/b8c837_d424ac2844b1474390a801dd8b290f2a.pdf
    • https://static.usrfiles.com/ugd/33a2e4_66053e78da884611b58ac369463ba1d1.pdf
    • https://static.usrfiles.com/ugd/b13fd1_3cff48e4670a4b839310226c4e030113.pdf
    • https://static.usrfiles.com/ugd/469aea_b1c9f11f8dd046bdac54a9237d154059.pdf
    • https://static.usrfiles.com/ugd/b8c837_a5e70e157be746149adf42f7af666429.pdf
    • https://cdn.shopify.com/s/files/1/0429/1044/9830/files/jemizu.pdf
    • https://cdn.shopify.com/s/files/1/0463/6665/4619/files/bakelite_sheet_manufacturers_in_pakistan.pdf
    • https://cdn.shopify.com/s/files/1/0431/6643/3435/files/26252513573.pdf
    • https://cdn.shopify.com/s/files/1/0434/6930/8061/files/breakfast_at_tiffany_s_ebook.pdf
    • https://cdn.shopify.com/s/files/1/0432/1761/7057/files/36514993773.pdf
    • https://cdn.shopify.com/s/files/1/0428/7827/1641/files/75637649562.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079f4.bin
0c2d82a7de71aaa93bc4f6e7b9e0400bbcced1676fa394090602cda5d3633b21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79F4 5416 bytes
font_01_sfnt_off00008c81.bin
6851f6c18566dfdc1f07bdaa83af6d49e58655e635d062b0ff6f52c9a1ed18f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C81 10668 bytes

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