Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed7effb8dd6c9f88…

MALICIOUS

PDF

70.4 KB Created: 2020-09-13 20:25:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c7ebb34b2d44d44e3d9988c12a6638a SHA-1: 5ff60aad319b3b2c0d84692cfa41ba428f88f5cf SHA-256: ed7effb8dd6c9f88eecbfc3ed9e1473ae764fc89e81e0c40cef9992275fa31be
120 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, which is also present in the document body. This link, 'https://ttraff.link/pify?keyword=super+mario+sunshine+action+replay+codes', leads to known malicious infrastructure. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external PDFs. The primary attack vector appears to be social engineering, tricking users into clicking the 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.link/pify?keyword=super+mario+sunshine+action+replay+codes
    • http://files.catherinegrace.co/uploads/1/3/2/6/132695747/vawuto.pdf
    • http://files.max-besbris.com/uploads/1/3/0/7/130738696/vewavevebapixufu.pdf
    • http://files.carecounselinglv.com/uploads/1/3/1/3/131379054/larinugedi.pdf
    • http://files.leahbealdesign.com/uploads/1/3/1/4/131407918/5286187.pdf
    • https://static.usrfiles.com/ugd/b8c837_1127410a71f74c759b4a302d485106ba.pdf
    • https://static.usrfiles.com/ugd/455f95_7e4ea9381e05415380eddb8830786b7d.pdf
    • https://static.usrfiles.com/ugd/b5aed9_b13f0ee6049e405f9d3217243985c491.pdf
    • https://static.usrfiles.com/ugd/33a2e4_f5fbf6f262ea4eeaa377047e8b3f8fce.pdf
    • https://static.usrfiles.com/ugd/b8c837_eab1f5ba57d3473eb3ce059b61ccb77c.pdf
    • https://static.usrfiles.com/ugd/162fe6_020f074c74fe4202947872cefa5b707c.pdf
    • https://static.usrfiles.com/ugd/8da65f_4295fc21fb184cce9b418e8eb29486e6.pdf
    • https://static.usrfiles.com/ugd/13ae68_56512313104a4590bbbc5f64e1570f1a.pdf
    • https://static.usrfiles.com/ugd/39cb9d_d2dcf8e5a1634a288f76617ef7107083.pdf
    • https://static.usrfiles.com/ugd/9eb187_6cdc5b636f284ae89d48539f20c8ce0a.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_off0000c402.bin
10152e842dcea90bd7f02da837633115287191e0a074e2f4799e822adaddc509		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC402 5520 bytes
font_01_sfnt_off0000d69c.bin
d0ae2831844575de010b81f93a3ddafb0e7ccc0409671500345ac66c0c3b0261		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD69C 16700 bytes

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