Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e05d48cb0a72084…

MALICIOUS

PDF

42.8 KB Created: 2020-09-06 14:45:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f125b2b13e04e7e4d89e204543c5dd0 SHA-1: 12d0f0c6eb4abcc1e94760f5365c400a79b95161 SHA-256: 9e05d48cb0a720840065b80eb057888e7a532d051d83b72468cab1f225fc4442
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, includes the URL 'https://ttraff.me/wix?keyword=androidx+navigationview+import', which is flagged as malicious. The presence of numerous links, including this malicious one, suggests an attempt to lure users to harmful sites or engage in SEO manipulation for malicious purposes.

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.me/wix?keyword=androidx+navigationview+import
    • https://cdn.shopify.com/s/files/1/0448/2806/5949/files/basic_concepts_of_chemistry_class_11_notes.pdf
    • https://cdn.shopify.com/s/files/1/0435/4143/0440/files/zetesozadonefisafakexef.pdf
    • https://cdn.shopify.com/s/files/1/0436/1325/7885/files/weboliva.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76640573288.pdf
    • https://cdn.shopify.com/s/files/1/0431/8206/3777/files/jaboburibigonuputitik.pdf
    • https://cdn.shopify.com/s/files/1/0435/3648/2458/files/wegigekoluzeridi.pdf
    • https://cdn.shopify.com/s/files/1/0444/4323/8567/files/administrao_de_medicamentos_via_parenteral.pdf
    • https://static.usrfiles.com/ugd/b8c837_3544602e03e64af2b92d58f3b9961831.pdf
    • https://static.usrfiles.com/ugd/b8c837_fae4bc71b46c44b0aae9655d242d7e39.pdf
    • https://static.usrfiles.com/ugd/5c139a_2d586a6375ad4188bac60dcee7525b0e.pdf
    • https://static.usrfiles.com/ugd/aa14a9_bae8786dfc644f30865b77ef2caed8ed.pdf
    • https://static.usrfiles.com/ugd/625844_df4cd9788caa47528668f0a029d3638f.pdf
    • https://static.usrfiles.com/ugd/f515ca_d866a51dcc294de7a44102768e35b12c.pdf
    • https://static.usrfiles.com/ugd/b8c837_5d26706714284b4f9fb624b41232f538.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_off00005db8.bin
f531da2f4f19bf36db0774d1749169b1b3256d566d62490495b01baa7dba63bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DB8 5276 bytes
font_01_sfnt_off00006fae.bin
d55b64b96ecda68c9fabccd1aeaeb289ad668d8197322887f51a911dc829594f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FAE 15080 bytes

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