Malicious PDF — malware analysis report

Static analysis result for SHA-256 e66613a81b038d47…

MALICIOUS

PDF

48.9 KB Created: 2020-09-03 23:21:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8cb47c6f2ff8ccec70b92634f86d59fd SHA-1: 247c192a3fb326d38bd7051ba0a9d4c1c92ceb1e SHA-256: e66613a81b038d47077b4292adde642d95647e754ecd69f754d7959429bd080e
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.me/wix?keyword=report+animal+abuse+houston+texas'. This indicates an attempt to direct the user to a malicious site. Additionally, the PDF exhibits characteristics of a link farm, with numerous external PDF links, including one to 'https://cdn.shopify.com/s/files/1/0432/1738/7682/files/guzuvup.pdf'. The document body, though heavily obfuscated, contains the redirector URL, reinforcing the malicious intent.

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=report+animal+abuse+houston+texas
    • https://cdn.shopify.com/s/files/1/0432/1738/7682/files/guzuvup.pdf
    • https://cdn.shopify.com/s/files/1/0432/4281/5643/files/52010219758.pdf
    • https://cdn.shopify.com/s/files/1/0440/7332/0600/files/how_to_cite_a_from_a_government_website_mla.pdf
    • https://cdn.shopify.com/s/files/1/0457/7037/5324/files/blood_angels_codex_release_date.pdf
    • https://cdn.shopify.com/s/files/1/0432/5854/4292/files/818177837.pdf
    • https://static.usrfiles.com/ugd/6846fe_4d4234e7938344f7a83b284ff70b7489.pdf
    • https://static.usrfiles.com/ugd/70a38d_86ffe2fa2d064d68aa1437e20950c359.pdf
    • https://cdn.shopify.com/s/files/1/0431/0476/4068/files/dorariba.pdf
    • https://cdn.shopify.com/s/files/1/0432/2190/9667/files/microbiologia_clinica_murray.pdf
    • https://static.usrfiles.com/ugd/05900a_90f75ba92b9843388b78948090ec224d.pdf
    • https://static.usrfiles.com/ugd/96a426_0d02ccb360bd4516835f5ad0cb4c0713.pdf
    • https://static.usrfiles.com/ugd/724fb5_402f0981719349069f852d38982189b0.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_off000073b9.bin
25af537a373fe5d93569a036926f9cec8979a96513e48641e66f3631c2d04505
pdf-font-stream PDF embedded font (sfnt) at offset 0x73B9 5156 bytes
font_01_sfnt_off0000850c.bin
5ce1d18edaba1fb05b115fa732ae6f09486b542b19fb4e751f130595554bc951
pdf-font-stream PDF embedded font (sfnt) at offset 0x850C 10596 bytes
font_02_sfnt_off0000a8cf.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333
pdf-font-stream PDF embedded font (sfnt) at offset 0xA8CF 4324 bytes