Malicious PDF — malware analysis report

Static analysis result for SHA-256 3182b9dc3a3113c5…

MALICIOUS

PDF

44.8 KB Created: 2020-09-01 07:14:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8f29b64566354822fb5112c3ac470c3f SHA-1: a5f875941f065b60ec5b489cc2895354132c0e88 SHA-256: 3182b9dc3a3113c576aa42d31145985bcb97643f008c541425c0c4688c66ffec
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with one URL pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text that appears to be a lure related to a 'fidelity charitable 2019 giving report'. The primary malicious link identified is https://ttraff.cc/wix?keyword=fidelity+charitable+2019+giving+report, which is likely used to redirect the user to a malicious site. The presence of numerous PDF links, many hosted on Shopify, suggests a tactic to obscure the final destination and potentially leverage benign-looking domains for distribution.

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=fidelity+charitable+2019+giving+report
    • https://cdn.shopify.com/s/files/1/0429/1038/4295/files/ditusojune.pdf
    • https://cdn.shopify.com/s/files/1/0429/0979/4463/files/togirivimosukaramamugifod.pdf
    • https://cdn.shopify.com/s/files/1/0439/6823/3630/files/april_current_affairs_2020_study_iq.pdf
    • https://static.usrfiles.com/ugd/b8c837_eb28dda2c08d462290a8804f671fe9d8.pdf
    • https://static.usrfiles.com/ugd/f8de3e_4def3a1e32ef46cc91d5d15a1e1231c8.pdf
    • https://static.usrfiles.com/ugd/576447_801bffe4f7c447689244ac5987324bd9.pdf
    • https://static.usrfiles.com/ugd/fbccce_e603a017652b4565a63bac01b0ca9f0f.pdf
    • https://static.usrfiles.com/ugd/55cc32_384cfcce66df4926bc18e9e7ef3b43fe.pdf
    • https://static.usrfiles.com/ugd/87a178_7ef8838cf9ff4cdcb758fd978da6993e.pdf
    • https://static.usrfiles.com/ugd/b8c837_fbd1a2af1ae94595991240fcbf6f8176.pdf
    • https://static.usrfiles.com/ugd/dad90e_a049091c9439406e8c2f7147b1fac774.pdf
    • https://cdn.shopify.com/s/files/1/0436/1833/6925/files/auditorium_acoustics.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/30106301206.pdf
    • https://cdn.shopify.com/s/files/1/0434/2648/0290/files/63433477676.pdf
    • https://cdn.shopify.com/s/files/1/0431/5466/9729/files/98827217940.pdf
    • https://cdn.shopify.com/s/files/1/0431/2619/4330/files/definition_of_environmental_science.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_off00006e7f.bin
f63fe89966b6c1c53f7be4585a7281955abfdab7b2b1d25964eaddfa3089e00a
pdf-font-stream PDF embedded font (sfnt) at offset 0x6E7F 5896 bytes
font_01_sfnt_off0000829a.bin
a52f3f2e3dbff7192a13bb4f040a2c44e5b4fdf7687ae0edf353e7b4be82faa7
pdf-font-stream PDF embedded font (sfnt) at offset 0x829A 10288 bytes