Malicious PDF — malware analysis report

Static analysis result for SHA-256 32be8ee41ec7a197…

MALICIOUS

PDF

48.4 KB Created: 2020-08-09 13:56:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79364c770253d884cf281fe3dc0bc6d9 SHA-1: 0c8e1f3bb664476d61867050bcd618e07f19c39e SHA-256: 32be8ee41ec7a1972b73bd0d05e6a39edc63431a2e53d77710ccaa115c6ffe1b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to 'ttraff.com'. The document body also contains this URL, suggesting the primary intent is to trick the user into clicking it. The link farm heuristic indicates a large number of external PDF links, likely for SEO manipulation or to obscure the malicious redirector. 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.com/pify?keyword=english+conversation+business+meeting+pdf
    • http://mopekajum.tcfastpitchchampionships.com/uploads/1/3/2/8/132814930/fb33d0cd36f7a.pdf
    • http://files.sergeypolstyanoy.com/uploads/1/3/1/0/131070212/tavawulivizepe.pdf
    • http://files.oaktonridgehoa.org/uploads/1/3/0/7/130739892/rixefufekuju-deziwemoseda-jozik.pdf
    • http://povifak.fencingaberdeen.com/uploads/1/3/1/4/131452836/zajutipidepo.pdf
    • https://cdn.shopify.com/s/files/1/0430/9129/6413/files/mefulite.pdf
    • https://cdn.shopify.com/s/files/1/0433/8286/6083/files/kipivubijexuferososigibos.pdf
    • https://cdn.shopify.com/s/files/1/0430/0436/2906/files/86559406129.pdf
    • https://cdn.shopify.com/s/files/1/0440/8714/8709/files/hospital_and_clinical_pharmacy_by_pratibha_nand_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/55490207850.pdf
    • https://cdn.shopify.com/s/files/1/0427/7298/8071/files/voximukifidokajokomafuvo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6779/3820/files/adobe_to_word_converter_online_login.pdf
    • https://cdn.shopify.com/s/files/1/0431/7046/3912/files/53416691170.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_off00007f2a.bin
173a1a08eeca0df6010335970f7757e7c9810397a666fb83fbbd4bc9a76c3c2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F2A 5724 bytes
font_01_sfnt_off0000928c.bin
04d28ffaf29199cd4df2cde273d40d276583ffd746c7ec98fb951c3d21804564		 pdf-font-stream PDF embedded font (sfnt) at offset 0x928C 10088 bytes

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