Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab8d016effb44c85…

MALICIOUS

PDF

44.4 KB Created: 2020-08-30 03:15:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6f968831d189e00e6b231f5a271a1e5c SHA-1: 47435275c93d0dc8b00b80463f06ceb5e517cb84 SHA-256: ab8d016effb44c857133b1bf6ebe59b77897b25af49b39fc0e650ec13486f518
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.cc'. The document body, though heavily obfuscated, contains text that appears to be a lure for a "Reduction Formula Report". This link is likely intended to redirect the user to a malicious site or download further malware. 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.cc/wix?keyword=rapport+de+r%25C3%25A9duction+formule
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/sto_kelvin_timeline_ships.pdf
    • https://cdn.shopify.com/s/files/1/0427/7446/2631/files/gezoxemar.pdf
    • https://cdn.shopify.com/s/files/1/0435/8517/5713/files/brihaspati_stotram_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0437/9767/6192/files/irritating_ringtones_free_mobile.pdf
    • https://cdn.shopify.com/s/files/1/0431/6469/6732/files/asking_the_right_questions_10th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.pdf
    • https://cdn.shopify.com/s/files/1/0434/1897/6408/files/29415328149.pdf
    • https://cdn.shopify.com/s/files/1/0434/7333/8533/files/21266804413.pdf
    • https://cdn.shopify.com/s/files/1/0429/1703/6198/files/kevogabipuxilozadus.pdf
    • https://static.usrfiles.com/ugd/bfbc46_6bb41139e3bf4503bb55b29fd963f662.pdf
    • https://static.usrfiles.com/ugd/b8c837_441e3a808b99455dab9bd83af84f3a4f.pdf
    • https://static.usrfiles.com/ugd/de02f3_b746935122ab4d748f97599bd99aeaf6.pdf
    • https://static.usrfiles.com/ugd/0f5b72_339c4b0e66c2426e8a77efc9688fab8a.pdf
    • https://static.usrfiles.com/ugd/b8c837_8d629bdc66cd459f8ac4bb1c584324ea.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_off00006af5.bin
d76b6af50834da9566b6dda0a55d7acf87c55280d5a5559ca68a7ad018986338		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6AF5 5272 bytes
font_01_sfnt_off00007c8c.bin
49330e61d3c2661a4cae6b2fae5997d786632e7a50a5b8489acd0b4211cb0e4c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7C8C 12080 bytes

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