Malicious PDF — malware analysis report

Static analysis result for SHA-256 7da4eee6f760e5f6…

MALICIOUS

PDF

42.1 KB Created: 2020-08-25 22:09:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 74364956ae0f2572df2271fe83fe4c99 SHA-1: 63f3822f1c06de173af5359a6ed6312ba86860a1 SHA-256: 7da4eee6f760e5f613cb5c7c696571fa86ab54d79769290c1c96c3bc391abe3e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, directing users to 'https://ttraff.me/pify?keyword=royal+collision+tucson'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same redirector URL and several other PDF links. The primary intent appears to be redirecting users to malicious infrastructure.

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=royal+collision+tucson
    • http://files.countyclassdestroyersassociation.org/uploads/1/3/2/7/132712661/cb0e0be9.pdf
    • http://files.metatalkcafe.com/uploads/1/3/1/4/131454586/woxifu-tebufepuf-gobetuwo-vudapi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1977/9742/files/80653269156.pdf
    • https://cdn.shopify.com/s/files/1/0430/3601/6802/files/53686856422.pdf
    • https://cdn.shopify.com/s/files/1/0431/9353/2573/files/56931422452.pdf
    • https://cdn.shopify.com/s/files/1/0432/9144/3364/files/45445294062.pdf
    • https://cdn.shopify.com/s/files/1/0428/9947/2550/files/minecraft_usernames_and_password_list.pdf
    • https://cdn.shopify.com/s/files/1/0440/0427/8422/files/faremigosemobibutirefe.pdf
    • https://cdn.shopify.com/s/files/1/0432/6306/6270/files/kesepevemu.pdf
    • https://cdn.shopify.com/s/files/1/0452/0201/4357/files/jizeseroz.pdf
    • https://cdn.shopify.com/s/files/1/0430/8379/2533/files/84499908567.pdf
    • https://cdn.shopify.com/s/files/1/0432/3472/1959/files/pugojedenegaroriwob.pdf
    • https://cdn.shopify.com/s/files/1/0430/4509/3533/files/35333955240.pdf
    • https://cdn.shopify.com/s/files/1/0463/2379/4077/files/ali_ali_akshay_kumar_song_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/4606/7621/files/96353902788.pdf
    • https://cdn.shopify.com/s/files/1/0433/8132/5980/files/mufusogupejap.pdf
    • https://cdn.shopify.com/s/files/1/0432/0926/1220/files/cemu_botw_download.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_off00006592.bin
435484fc9c8836b3b3b217f5b478cc7e82bc2e2a6cb17b514859dce61e2fe415		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6592 4804 bytes
font_01_sfnt_off00007603.bin
64957332fb51bb808c9bdad25ae2419c62edcc3693e8e5f8d8e1c65a070d8ebb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7603 11024 bytes

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