Malicious PDF — malware analysis report

Static analysis result for SHA-256 c747687fb31e6694…

MALICIOUS

PDF

44.2 KB Created: 2020-08-30 05:50:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cffe3916fc04418babff88db0ad722d SHA-1: 3729cc4fd3fba7eaed769b65888f97eceedbcfb0 SHA-256: c747687fb31e6694b337e1c95b838399939fde6c67e01405513f0de71a025f76
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link. The embedded URL leads to `ttraff.ru`, which is known for malicious redirection. The document body, though heavily obfuscated, contains the same malicious URL, suggesting an attempt to trick users into clicking it for free templates. No scripts were extracted from this sample.

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.ru/wix?keyword=%25C3%25BCcretsiz+dreamweaver+%25C5%259Fablonlar%25C4%25B1+mac
    • https://static.usrfiles.com/ugd/bd5c68_ad784015086b4b36a0d7122ce02e499c.pdf
    • https://static.usrfiles.com/ugd/804ff6_7221a2cfbb4e4d3cb7decd16db0fb2df.pdf
    • https://static.usrfiles.com/ugd/2f8cea_7bc29f0261bc498d983c57157644d15f.pdf
    • https://static.usrfiles.com/ugd/b8c837_deb879493aa64324a0062f7b02f87ef8.pdf
    • https://static.usrfiles.com/ugd/a382ee_aa7f5c4d907e4cea821f667a7ddf0af6.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/munebigolej.pdf
    • https://cdn.shopify.com/s/files/1/0432/5533/3027/files/80497599832.pdf
    • https://cdn.shopify.com/s/files/1/0427/4959/1718/files/lawadi.pdf
    • https://cdn.shopify.com/s/files/1/0440/5621/5702/files/causas_de_urticaria_cronica.pdf
    • https://static.usrfiles.com/ugd/b8c837_ead31749629042c5bea6a0dfa8203bb5.pdf
    • https://static.usrfiles.com/ugd/e3ed1f_51c06918a7d14b5790304120154816f9.pdf
    • https://cdn.shopify.com/s/files/1/0433/0189/6347/files/best_virus_protection_for_android_tv_box.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7250/files/wapebexepikalepoko.pdf
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/nalifimaxitemalalop.pdf
    • https://cdn.shopify.com/s/files/1/0429/8371/9071/files/arihant_english_bank_po_books_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/9522/8565/files/jigamodi.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_off00006951.bin
1a8585c80fa348578c073aa9375f409cbb645be6bc271aebd07cde29a86df1f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6951 5720 bytes
font_01_sfnt_off00007c4c.bin
e087d492b69c5ff382b40a1353a29add4f15959fd72f19ef79861b4b1b4dd395		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4C 11732 bytes

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