Malicious PDF — malware analysis report

Static analysis result for SHA-256 432d615782009629…

MALICIOUS

PDF

41.6 KB Created: 2020-08-30 20:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e903065ac7fcbfa9070bf73130970cc7 SHA-1: 244a9834f6efc8cc4ec535e5eeefed5059413619 SHA-256: 432d6157820096298372d26f1bc3b439bfbb01cb77ef5117e4f7dec58c9e7366
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/wix?keyword=the+kite+runner+free+ebook'. This URL is presented within the document body, disguised as a link to an ebook. The presence of a 'SE_INVOICE_LURE' heuristic further suggests a social engineering tactic to entice users to click the malicious link. No scripts were extracted from this sample.

Heuristics 4

  • 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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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=the+kite+runner+free+ebook
    • https://cdn.shopify.com/s/files/1/0458/5976/6425/files/android_vpn_client_cisco_asa.pdf
    • https://cdn.shopify.com/s/files/1/0437/7001/9998/files/rma_free_practice_test.pdf
    • https://cdn.shopify.com/s/files/1/0462/2696/4631/files/24760778060.pdf
    • https://static.usrfiles.com/ugd/9cc572_6bdcf075a20746fabf90e355c0a8d796.pdf
    • https://static.usrfiles.com/ugd/b8c837_0dd76032c2fb4879846c6c50cf3f39df.pdf
    • https://cdn.shopify.com/s/files/1/0430/2058/3065/files/spanish_2_capitulo_4a_crossword_answers.pdf
    • https://cdn.shopify.com/s/files/1/0432/6106/7428/files/basic_information_about_computer_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/2669/3789/files/86854629172.pdf
    • https://cdn.shopify.com/s/files/1/0427/9920/2467/files/dozavanedisefurekiluw.pdf
    • https://cdn.shopify.com/s/files/1/0438/2969/0525/files/how_to_open_axis_bank_credit_card_statement_password.pdf
    • https://static.usrfiles.com/ugd/dc98cc_fc86efa084414f2eb7d2e144876bd132.pdf
    • https://static.usrfiles.com/ugd/b8c837_de221f358af14cefb7bdd19a92485e94.pdf
    • https://static.usrfiles.com/ugd/7c3584_f2334c42d1494ecb949f2ed31ef1083b.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_off0000674b.bin
f3f001c55caf6f792770fb65cf6826b19b0c68001b837f4d2a9abf31a9adb32d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x674B 4588 bytes
font_01_sfnt_off000076dd.bin
372964ada477bcf8c4ddf5e474a47322bd266ae13e5eb0821daf0d2c256e0c48		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76DD 10400 bytes

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