Malicious PDF — malware analysis report

Static analysis result for SHA-256 23f7cced3a625657…

MALICIOUS

PDF

41.5 KB Created: 2020-08-31 05:46:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6d2ca88e57891c067a6ed802825c9cbd SHA-1: 1b0ae19dfceeef8278983729e11d6dbb94d6f112 SHA-256: 23f7cced3a6256577f5f79c6f4609042b2e72848b16c6186ccd0290a31b79882
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/wix?keyword=gerundio+en+frances', is flagged as a known malicious redirector. The document's primary purpose appears to be to lure users into clicking these links, likely leading to further malicious content or exploits.

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=gerundio+en+frances
    • https://cdn.shopify.com/s/files/1/0431/7007/0687/files/crack_my_screen_prank.pdf
    • https://cdn.shopify.com/s/files/1/0436/1846/7997/files/mivomenamola.pdf
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/fomal.pdf
    • https://cdn.shopify.com/s/files/1/0432/4658/3976/files/automobile_engineering_basics.pdf
    • https://cdn.shopify.com/s/files/1/0435/8343/9011/files/78286633839.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/73315222938.pdf
    • https://cdn.shopify.com/s/files/1/0429/2768/5799/files/beautiful_in_white_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0436/8865/7049/files/nerazijiduleniwas.pdf
    • https://cdn.shopify.com/s/files/1/0437/6687/4266/files/altivar_61_manual_italiano.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/suzosafuvarasi.pdf
    • https://cdn.shopify.com/s/files/1/0429/4888/6684/files/core_java_interview_questions_tutorialspoint.pdf
    • https://cdn.shopify.com/s/files/1/0433/7798/3653/files/xavedepenu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9094/2888/files/41923739085.pdf
    • https://cdn.shopify.com/s/files/1/0430/6200/1821/files/tipavikex.pdf
    • https://cdn.shopify.com/s/files/1/0430/6213/2897/files/wosiviwepemojobop.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_off0000607a.bin
22e4c56fa7d8c81e51c2677770d33a0d0185458f8cb3771892b52ef2dd216a5c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x607A 5016 bytes
font_01_sfnt_off00007194.bin
02f02e2f211826750e20537121b4d2fc9716a38ed659b7b36d5dd9547d8bf4db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7194 12276 bytes

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