Malicious PDF — malware analysis report

Static analysis result for SHA-256 390d8122f443c74c…

MALICIOUS

PDF

44.9 KB Created: 2020-09-07 00:21:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65f35c95771beae8701f0a6835b359ab SHA-1: 216095fef81b98eaebec15f84434d0d6200060c1 SHA-256: 390d8122f443c74c9ab9f0810b5bb620ac00f2834d198c2a4b8fcb58bec6f428
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with a critical heuristic firing for a PDF link farm. One of these links, https://ttraff.me/wix?keyword=satyamev+jayate+vinod+khanna+movie, is identified as a malicious redirector. The document body, though heavily obfuscated, contains this URL and appears to be a lure. The primary attack pattern involves directing users to malicious infrastructure through a deceptive document.

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=satyamev+jayate+vinod+khanna+movie
    • https://cdn.shopify.com/s/files/1/0430/0357/6481/files/ti-_89_for_dummies.pdf
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/remorinafarefepezud.pdf
    • https://cdn.shopify.com/s/files/1/0433/3695/8106/files/chitralahari_naa_songs_please.pdf
    • https://cdn.shopify.com/s/files/1/0430/5308/8919/files/a_lover_s_concerto_piano_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0440/0627/7278/files/mapa_geologico_da_bahia.pdf
    • https://cdn.shopify.com/s/files/1/0438/8470/7992/files/comite_du_gard_petanque.pdf
    • https://static.usrfiles.com/ugd/271e65_55a406d64fb44cfb90f756aa033d1067.pdf
    • https://static.usrfiles.com/ugd/b8c837_08ca1ea6716e44dea0a6021993dc7892.pdf
    • https://static.usrfiles.com/ugd/314c35_fbba2843be7049098c24fe0f841348cd.pdf
    • https://static.usrfiles.com/ugd/2e16aa_50e41961068d4e009eebacbe1e85ca7a.pdf
    • https://static.usrfiles.com/ugd/5a1791_62001bda604e4f7fb1b0af664e81e9e8.pdf
    • https://static.usrfiles.com/ugd/516793_6aeeea2b35914713b616211f1e94cd79.pdf
    • https://static.usrfiles.com/ugd/bfd504_d45ae2c999664d7ca19911b1bec1cbd4.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063ee.bin
e42e22952900e6cc800ce5f8dfad70d4edabd83cfd799250158e56b4425cbc03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63EE 4952 bytes
font_01_sfnt_off000074a2.bin
fa42260101db044cf35bfa468cb4447a557962ea238a1abd7d8a114c8c3c2ab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x74A2 10452 bytes
font_02_sfnt_off00009870.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9870 4324 bytes

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