Malicious PDF — malware analysis report

Static analysis result for SHA-256 dec9d413e176767f…

MALICIOUS

PDF

38.0 KB Created: 2020-08-23 23:44:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9620589454ad75fc08158ff57b00bdfc SHA-1: ff15fcc2f53cfd6b43431f84751a05e19bf50cb9 SHA-256: dec9d413e176767ffd49d7fac62e0c4523f00140de2fcce1f9edfa58193770c5
120 Risk Score

Malware Insights

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

The PDF file contains a lure related to "CV template html" and embeds numerous links, including one pointing to a known malicious redirector at https://ttraff.ru/pify. This redirector is likely used to obscure the final destination and potentially deliver further malicious content. The presence of a link farm hosted on Shopify suggests an attempt to distribute malicious content through seemingly benign platforms.

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/pify?keyword=cv+template+html
    • http://files.tombstoneantiquemall.com/uploads/1/3/2/7/132710679/3e964d3e59e2.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/kiruveduxududi.pdf
    • https://cdn.shopify.com/s/files/1/0432/1745/3211/files/25825827210.pdf
    • https://cdn.shopify.com/s/files/1/0434/1307/8174/files/35168601137.pdf
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/massey_algebraic_topology.pdf
    • https://cdn.shopify.com/s/files/1/0427/7954/1671/files/nitudagaxa.pdf
    • https://cdn.shopify.com/s/files/1/0437/8827/1767/files/68314476881.pdf
    • https://cdn.shopify.com/s/files/1/0432/0047/9391/files/81797568114.pdf
    • https://cdn.shopify.com/s/files/1/0432/7673/0533/files/pasar_de_a_word_descarga_gratis.pdf
    • https://cdn.shopify.com/s/files/1/0433/8424/2337/files/legamigutokinizuwasase.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/theory_of_carcinogenesis.pdf
    • https://cdn.shopify.com/s/files/1/0434/0898/2165/files/alphonse_allais.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/kepikokojabilaxapawidoxi.pdf
    • https://cdn.shopify.com/s/files/1/0430/8385/8080/files/33574981246.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_off000057e5.bin
d0fd5f16febb0e39a191420a37a68a150c06e6b268484c0f9dd9fa3a14dbb511		 pdf-font-stream PDF embedded font (sfnt) at offset 0x57E5 4748 bytes
font_01_sfnt_off000067eb.bin
eb1f230cb9244fd69d570c8bc6582ece1a477315eca97aff20313772a248f52e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67EB 10444 bytes

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