Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed3ee810b0e88522…

MALICIOUS

PDF

40.9 KB Created: 2020-08-30 22:38:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5849dbced60b35c423fe99e84adf128b SHA-1: 5f4ed5a4b1ef3e099a11d090bcade9ee4e242cb5 SHA-256: ed3ee810b0e885229c8348e3c48d2bada1ae8b40805d4ff2e104069bcca4099f
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.me/wix?keyword=food%253A+wtf+should+i+eat%253F+the+no-nonsense+guide+to+achieving+optimal+weight+and+lifelong+health'. The document body, though partially corrupted, suggests a lure related to health and diet, which is likely a pretext to drive users to the malicious URL. The presence of a PDF link farm further supports the malicious intent of distributing links.

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=food%253A+wtf+should+i+eat%253F+the+no-nonsense+guide+to+achieving+optimal+weight+and+lifelong+health
    • https://static.usrfiles.com/ugd/b8c837_c1c1b08528504a6386fbecff564c815f.pdf
    • https://static.usrfiles.com/ugd/565485_0faf70bb2e8046a9beb121d1044b58f2.pdf
    • https://static.usrfiles.com/ugd/271e65_d067be4b74da48449b4d42f50f67f09c.pdf
    • https://static.usrfiles.com/ugd/77eba6_6a981976877f4529a0d1e7a18cf2a6b7.pdf
    • https://static.usrfiles.com/ugd/c1615c_dd2212657d094b4dbbf1e04650658129.pdf
    • https://static.usrfiles.com/ugd/ae15ca_6f579e7a0ee340fd81d356144191d4ef.pdf
    • https://static.usrfiles.com/ugd/cc089a_3db2d309982946aca6dff0df8a509049.pdf
    • https://static.usrfiles.com/ugd/58a813_f0443acfc86241eab7c4e986b8dbbff6.pdf
    • https://static.usrfiles.com/ugd/b8c837_aa9ca426d15349f3a5bc093628f85eeb.pdf
    • https://static.usrfiles.com/ugd/f1780b_4ab687d2e95344c196e609319e357fd8.pdf
    • https://cdn.shopify.com/s/files/1/0429/7926/2615/files/25050101222.pdf
    • https://cdn.shopify.com/s/files/1/0434/0757/3157/files/hurricane_dorian_latest_information.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_off00005fc4.bin
bedcf296e21d1099fe9f41016176dda0f4868669de597336c6a83abfbe4e8638		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FC4 5804 bytes
font_01_sfnt_off0000738b.bin
ec1af4a05a1d8d279dd72ae8717b2ff3b14d5118401731c17b5b9bd2a8a792d1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x738B 10068 bytes

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