Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ca3f27d33041e51…

MALICIOUS

PDF

38.3 KB Created: 2020-08-30 16:46:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5bb6ec0f7f08e9fc107a5adb0956cb31 SHA-1: 7a5a9cb3c616b1088a1a278ee9b55966f87631e5 SHA-256: 2ca3f27d33041e512b4465b06343cf4f493fb96c556869d6115bf5ffb2f90228
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, masquerading as search results for a song download, to a redirector URL. This suggests a phishing or scam attempt to drive traffic to malicious infrastructure. The primary malicious URL identified is ttraff.ru, which is known to host redirectors.

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.ru/wix?keyword=holi+holi+nach+patlo+song+download
    • https://static.usrfiles.com/ugd/b8c837_70c57db51c4244df93590711178b9b6b.pdf
    • https://static.usrfiles.com/ugd/b8c837_dac20c1629db4edea42acf905b7e44bf.pdf
    • https://static.usrfiles.com/ugd/83b1b3_304f0c2d0ecc44418252977d8f33eaae.pdf
    • https://static.usrfiles.com/ugd/de65f7_1a0d93ce0a0b45e2901083aad4db871b.pdf
    • https://static.usrfiles.com/ugd/b8c837_e78e36a1c22747dcb339d72b2da3f9c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_79e5621b3b93465c933d78aa27bd31cc.pdf
    • https://static.usrfiles.com/ugd/b58d21_d5a2d679f551410cac1e5be15d107391.pdf
    • https://static.usrfiles.com/ugd/79e0dc_a3c52936c0284ca3ab5fafc6adfe806c.pdf
    • https://static.usrfiles.com/ugd/0baf77_a57ca78d58e34ef2bbce0d7d228b744e.pdf
    • https://static.usrfiles.com/ugd/2f8cea_8b54195ecf5e4b8f8c5ef351497415ad.pdf
    • https://static.usrfiles.com/ugd/b77b08_062e2e4e9a244d9c841f61c1ec4b513c.pdf
    • https://cdn.shopify.com/s/files/1/0435/8940/2779/files/lozefigizubepeganizezixul.pdf
    • https://cdn.shopify.com/s/files/1/0433/5458/7288/files/cs_lewis_the_weight_of_glory_sermon.pdf
    • https://cdn.shopify.com/s/files/1/0437/8296/3349/files/panakixusib.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/21849417005.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_off000054a2.bin
f031583d7134feed1bcdd8f703d1b3267740f0dd841be3cead5112d7369e5b4d
pdf-font-stream PDF embedded font (sfnt) at offset 0x54A2 5292 bytes
font_01_sfnt_off000066a2.bin
de84940e8ea71f8bced41073e9db1b9291a9504327611d77ac83674317ee29a7
pdf-font-stream PDF embedded font (sfnt) at offset 0x66A2 11236 bytes