Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7cd9676bc7a4b6…

MALICIOUS

PDF

47.3 KB Created: 2020-08-08 13:09:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79cef3fd70b2dbf428fc0552a464d965 SHA-1: 5bf70e1c6b446070d6154bdab1882578e283bb5e SHA-256: dd7cd9676bc7a4b6136522f6222174b3ad30b1c14b5a607b9d09234a2cc5841c
120 Risk Score

Malware Insights

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

The PDF file contains a deceptive link presented as "Car body repair tools pdf". This link redirects to a malicious URL, ttraff.com, which is flagged as a malicious redirector. The document also contains a large number of embedded links, many pointing to Shopify domains, suggesting an attempt to obscure the malicious destination or leverage legitimate platforms for hosting. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link.

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=car+body+repair+tools+pdf
    • http://foxobasu.southfloridapsychology.com/uploads/1/3/2/8/132816202/varerodirapusim-putizifo.pdf
    • http://files.karynlim.com/uploads/1/3/1/4/131453221/duxaxolizidopi-gulotoxomef-sodifivegegowe.pdf
    • http://files.brooksidegundogsllc.com/uploads/1/3/2/6/132695329/9954452.pdf
    • https://cdn.shopify.com/s/files/1/0432/7935/1976/files/asterix_and_obelix_complete_collection.pdf
    • https://cdn.shopify.com/s/files/1/0430/3912/9751/files/ranivunel.pdf
    • https://cdn.shopify.com/s/files/1/0436/8151/3625/files/name_change_affidavit_for_passport.pdf
    • https://cdn.shopify.com/s/files/1/0435/4372/4186/files/kanabitilepuxabenoxoro.pdf
    • https://cdn.shopify.com/s/files/1/0434/3998/0711/files/23562011194.pdf
    • https://cdn.shopify.com/s/files/1/0428/4776/4636/files/git_shell_commands.pdf
    • https://cdn.shopify.com/s/files/1/0431/6895/6565/files/30533045833.pdf
    • https://cdn.shopify.com/s/files/1/0445/5497/7444/files/wow_mouseover_macro.pdf
    • https://cdn.shopify.com/s/files/1/0432/3488/5796/files/sql_full_outer_join.pdf
    • https://cdn.shopify.com/s/files/1/0428/7945/1289/files/bsc_physics_honours_books_download.pdf
    • https://cdn.shopify.com/s/files/1/0429/2155/8183/files/manual_j_calculation_free.pdf
    • https://cdn.shopify.com/s/files/1/0450/2500/1630/files/august_month_current_affairs_2020_oliveboard.pdf
    • https://cdn.shopify.com/s/files/1/0440/9180/1752/files/weblogic_admin_interview_questions_and_answers_pdf.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_off00007b8e.bin
37e2933dd379abe6ec11ba7a4c49e0c413403f505b09cc6d39f3ede2ca982a14
pdf-font-stream PDF embedded font (sfnt) at offset 0x7B8E 5184 bytes
font_01_sfnt_off00008d3d.bin
27a6fe58ccc05ee4f33c20ba173f203c46dfec660407a6ed3ebce88dd8f00573
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D3D 10340 bytes