Malicious PDF — malware analysis report

Static analysis result for SHA-256 50568deb1e14cc86…

MALICIOUS

PDF

40.6 KB Created: 2020-08-30 21:12:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 402e49884ff9ec6dad080dafac1ae6b3 SHA-1: a770683f223d294356bbd927c6155b2b9643a913 SHA-256: 50568deb1e14cc8641c749184a2f7a6b62cf9b4d749d207704adba3a14a8d53b
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/wix?keyword=help+rana+or+darj'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, many of which point to static.usrfiles.com. The document body, though heavily obfuscated, also contains the primary malicious URL, suggesting the document's purpose is to redirect users to potentially harmful 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.com/wix?keyword=help+rana+or+darj
    • https://static.usrfiles.com/ugd/b8c837_67c4a6076db942e58773b731ffea74fe.pdf
    • https://static.usrfiles.com/ugd/b8c837_5156146dd94d42c391dd8b185ecb2520.pdf
    • https://static.usrfiles.com/ugd/599f1c_f32a36a24a914eb2b8d9cf5c91a00838.pdf
    • https://static.usrfiles.com/ugd/b8c837_271cbeca9dab4340b6fc9ed23a2e7d22.pdf
    • https://static.usrfiles.com/ugd/24853a_441e6fb703974d329ed699c1531dbdaa.pdf
    • https://static.usrfiles.com/ugd/a48928_36a3ddbd16a24020a9a284a08b4c93b3.pdf
    • https://static.usrfiles.com/ugd/455f95_c9f06bf28bbc4c6e9c34992b06c85ded.pdf
    • https://static.usrfiles.com/ugd/1be480_433da892471a4cc09a43254471ffd13c.pdf
    • https://static.usrfiles.com/ugd/c162b3_50196b54c72d424ebb74111ada7600e4.pdf
    • https://static.usrfiles.com/ugd/b8c837_6c4be4313a44495b99655cff6b94bfca.pdf
    • https://cdn.shopify.com/s/files/1/0430/7664/9121/files/buscar_informacion_de_un_iphone_por_imei.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/41448402009.pdf
    • https://cdn.shopify.com/s/files/1/0433/5684/8282/files/gixopodegefimudawor.pdf
    • https://cdn.shopify.com/s/files/1/0434/3431/1845/files/domoviwawinulebogigirar.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_off0000600a.bin
4d6d08fa231534cdcf9cb146f710712ace40ba1e3e34f034462f0bca17a9060a
pdf-font-stream PDF embedded font (sfnt) at offset 0x600A 4812 bytes
font_01_sfnt_off00007072.bin
93fd647d1142079547a3e4ca9e7bab465c7bfb4496bd1476867cbfd8288708c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 11160 bytes