Malicious PDF — malware analysis report

Static analysis result for SHA-256 e64371343ad84764…

MALICIOUS

PDF

44.3 KB Created: 2020-09-04 16:35:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 41e8ebe1635e4f6c51ef2b429bc97d4d SHA-1: a72f82440342b6ded436b25ee5fde688aa8d837d SHA-256: e64371343ad84764abba205a6fcb2205360d7599121de5532bbc475e5bf2f962
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a large number of external links, a technique often used for SEO poisoning or to distribute malicious content. One of the embedded URLs, 'https://ttraff.me/pify?keyword=deoxys+attack+form+cp+chart', is flagged as a known malicious redirector. The document body is heavily obfuscated and contains what appears to be junk data along with some URLs, further suggesting a malicious intent to disguise the true nature of the content.

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.me/pify?keyword=deoxys+attack+form+cp+chart
    • https://cdn.shopify.com/s/files/1/0437/8938/5885/files/16817207237.pdf
    • https://cdn.shopify.com/s/files/1/0433/5442/3464/files/grama_sachivalayam_books_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0434/4643/6006/files/17775555549.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/free_promissory_note_form.pdf
    • https://cdn.shopify.com/s/files/1/0434/4859/8678/files/gary_glitter_rock_and_roll_part_2.pdf
    • https://cdn.shopify.com/s/files/1/0438/3480/2333/files/autobus_algeciras_malaga.pdf
    • https://static.usrfiles.com/ugd/b8c837_581ea006585b4ab29b69a9eaba43713e.pdf
    • https://static.usrfiles.com/ugd/5af86b_a494015a549e43d98eddd3f844a15a07.pdf
    • https://static.usrfiles.com/ugd/4dd980_66b3b276f639477585e989a6eec5ddae.pdf
    • https://static.usrfiles.com/ugd/9757e7_2c07b20c0616463bada37f62a41a8ead.pdf
    • https://static.usrfiles.com/ugd/e4d7df_4987e9f0afa74e94b01b2ef07c4feae5.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_off00006f00.bin
cd82fc03c278f565f3ad5d6cc9fe14ec1fd1143e9ab3631e618d614f80d862f5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F00 5456 bytes
font_01_sfnt_off0000817f.bin
6f16ee5cf15efa7a15eb19afb69c657d9d37377711cdf1f3bec864079b654bf0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x817F 10376 bytes

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