Malicious PDF — malware analysis report

Static analysis result for SHA-256 40945351f575989f…

MALICIOUS

PDF

50.5 KB Created: 2020-08-30 12:45:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7d4a7d57ad4c194c00c2e379e19b2379 SHA-1: e3ad6bb73e72099763f0bed49e9bda2bf0e4f2a6 SHA-256: 40945351f575989f49c54e33b02c903a4fe61b677230b1d303f411898d9ffb3e
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, indicating it directs users to a known malicious URL. Additionally, PDF_SEO_LINK_FARM suggests the document is part of a link farm designed to attract traffic. The embedded URL https://ttraff.ru/wix?keyword=fgo+team+building is the primary indicator of malicious intent, likely serving as a gateway to further malicious content. No scripts were extracted, limiting the analysis of direct execution capabilities.

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=fgo+team+building
    • https://static.usrfiles.com/ugd/b8c837_8657b16b46ef4a44aa561a4287601a24.pdf
    • https://static.usrfiles.com/ugd/98e298_6021954c69804327b8edc89e5e6b23a9.pdf
    • https://static.usrfiles.com/ugd/ea5d7b_da57c4c6e9974d2782c5b455e2120a8e.pdf
    • https://static.usrfiles.com/ugd/b8c837_9ff3a7138cc3429ea17e92826c9049c5.pdf
    • https://static.usrfiles.com/ugd/b8c837_308bbcb111da4e6ebd05f5c33c41ef21.pdf
    • https://cdn.shopify.com/s/files/1/0435/2340/8032/files/13834125597.pdf
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/acrobat_star_show_apk.pdf
    • https://cdn.shopify.com/s/files/1/0432/0890/0768/files/lijororatadenel.pdf
    • https://cdn.shopify.com/s/files/1/0435/9382/6463/files/ford_kuga_owners_manual_2018.pdf
    • https://cdn.shopify.com/s/files/1/0438/0796/5341/files/aha_acls_textbook.pdf
    • https://static.usrfiles.com/ugd/868401_f92232bf1c5c49218f1c62f956155969.pdf
    • https://static.usrfiles.com/ugd/b9801a_7ce8202582a4498684fd9bb611200f4b.pdf
    • https://static.usrfiles.com/ugd/b8c837_9f1b9f5a88e84d1e847c33a712fe93b2.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_off0000892f.bin
7a6420eddd9c9f95fd94fd09cac77d1cb98ea874fe2d8952287b9733e0e4c7dc
pdf-font-stream PDF embedded font (sfnt) at offset 0x892F 4968 bytes
font_01_sfnt_off00009a04.bin
bfdaf3991f0df36107695fc18aaf674c3585e0ed68aa240ba3d8c58ee351e0e8
pdf-font-stream PDF embedded font (sfnt) at offset 0x9A04 10412 bytes