Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a2e9ae054746eba…

MALICIOUS

PDF

48.2 KB Created: 2020-08-29 02:03:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7ec984ce28bdf53a27311b1c2d21ddfe SHA-1: 7319a759e7c42746ed9bb71e48b392e070d39f74 SHA-256: 3a2e9ae054746ebab6d8b1c08ecfd303cce4635e7d68eb3b7520b9dd244f6d61
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many of which point to a known malicious redirector. The document body, though heavily obfuscated, contains the URL for the malicious redirector and a sensationalized title suggesting a lure. The primary attack pattern involves tricking the user into clicking the malicious link, which then redirects to further malicious 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.cc/wix?keyword=chris+watts+jailhouse+confession+transcript
    • https://static.usrfiles.com/ugd/b8c837_eb337cc5f30340fc93be43de54c95934.pdf
    • https://static.usrfiles.com/ugd/b8c837_dbfb65b7e1a24f628eca6b1112a25e08.pdf
    • https://static.usrfiles.com/ugd/b8c837_f41957d4c934435c9073354f6dd72eb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_b6769c049b8941b480e1f189e9907956.pdf
    • https://static.usrfiles.com/ugd/b8c837_184f284dc41c41738d9cb2833859b8bf.pdf
    • https://static.usrfiles.com/ugd/b8c837_49fc44077d1f4567aa6519290ec7698e.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/financial_reporting_standards_new_zealand.pdf
    • https://cdn.shopify.com/s/files/1/0431/4172/6370/files/fexugizadibevepotafagagid.pdf
    • https://cdn.shopify.com/s/files/1/0437/7310/0184/files/gagogawos.pdf
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/kenmore_elite_ice_maker_not_working.pdf
    • https://static.usrfiles.com/ugd/b8c837_c4dda66298124c45b7c90b0a0761bc49.pdf
    • https://static.usrfiles.com/ugd/b8c837_31479c064bf04226a7aae5c8694e822c.pdf
    • https://static.usrfiles.com/ugd/b8c837_4f47f62f9f354b58b6213d2f9cf468d6.pdf
    • https://static.usrfiles.com/ugd/b8c837_fc7ded8d99264dd9b7bdf54de3db19f6.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_off00007159.bin
227b346f396461b1fba1b8c34c3c958c3c57763880c1a0e89f5601b6db966500
pdf-font-stream PDF embedded font (sfnt) at offset 0x7159 5176 bytes
font_01_sfnt_off00008305.bin
3167a0354457295ce1f477886d69ac14b23000f5730d58f5b6c43c7d65777674
pdf-font-stream PDF embedded font (sfnt) at offset 0x8305 9968 bytes
font_02_sfnt_off0000a537.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176
pdf-font-stream PDF embedded font (sfnt) at offset 0xA537 4324 bytes