Malicious PDF — malware analysis report

Static analysis result for SHA-256 d3751b7be05f7523…

MALICIOUS

PDF

41.0 KB Created: 2020-08-09 02:42:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5516784ef8890e11fad50a2f9db3a230 SHA-1: b89263ac44238a7aaf90d6a7babed6336e9c946b SHA-256: d3751b7be05f7523f640da6635ea446bf7b61d8dfcc7271b441d766ad63d42a0
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 and a link farm. The document body, though heavily obfuscated, contains text related to 'Christian books in urdu pdf free download' and the malicious URL. The primary malicious URL, https://ttraff.cc/pify?keyword=christian+books+in+urdu+pdf+free+download, is likely used to redirect users to further malicious content.

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/pify?keyword=christian+books+in+urdu+pdf+free+download
    • http://files.leannewaterhouse.com/uploads/1/3/0/7/130775519/xelopevowubisasu.pdf
    • http://files.monashsama.com/uploads/1/3/1/0/131070612/rorupu-pewadanuga-joxanaxi.pdf
    • http://files.stpetersharbourlighthouse.com/uploads/1/3/1/4/131453574/4647872.pdf
    • http://files.nmtpestcontrol.com/uploads/1/3/0/7/130739783/kiraz.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/tusodabamoxit.pdf
    • https://cdn.shopify.com/s/files/1/0431/3592/6434/files/zabuximisipijini.pdf
    • https://cdn.shopify.com/s/files/1/0436/9799/5941/files/old_balarama.pdf
    • https://cdn.shopify.com/s/files/1/0436/3943/9510/files/ripogixu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0802/3966/files/nonprofit_bookkeeping_and_accounting_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0434/7727/0692/files/schwerbehindertenausweis_antrag_rlp.pdf
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/everyday_writer_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0432/8452/9310/files/2573306456.pdf
    • https://cdn.shopify.com/s/files/1/0439/1780/3675/files/bufoguran.pdf
    • https://cdn.shopify.com/s/files/1/0429/6628/6490/files/6552209270.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_off0000598c.bin
57454dab684691af417040ec5871bcf3479aee5fb18170908055326672e81f68		 pdf-font-stream PDF embedded font (sfnt) at offset 0x598C 5332 bytes
font_01_sfnt_off00006bab.bin
43bc18c0e500fb83651156f14c836a77e1a2aea153ffa6bae86be5cf4e9db654		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BAB 13796 bytes

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