Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba35b1700663a912…

MALICIOUS

PDF

44.7 KB Created: 2020-09-01 14:37:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5df7b0b473b9f296241fa252f900e948 SHA-1: 6754bb87a7d7edaae285c29d3c8dd904bca5d160 SHA-256: ba35b1700663a912d94acc2ad064893310266cef3eae16e488d74a99c9abf359
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to a URL that appears to be a lure for free software. The document body contains the same URL, reinforcing the social engineering aspect. The file also contains a heuristic for a PDF link farm, indicating a large number of outbound links, many of which are benign but serve to obscure the malicious one. The primary malicious IOC is the redirector URL.

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=spotify+premium+apk+2018+gratis
    • https://static.usrfiles.com/ugd/6908d7_fa35bab3e30943abaa738f2bb6c8bfc2.pdf
    • https://static.usrfiles.com/ugd/857e61_ea50eea1b6ac4896b8b760b8c0ba02cb.pdf
    • https://static.usrfiles.com/ugd/2274a7_5c16724ebfa74fcc8b891219041850d8.pdf
    • https://static.usrfiles.com/ugd/097bd5_15e167fd87c84110b05d67ed23bcc0ff.pdf
    • https://static.usrfiles.com/ugd/ae059d_16de4681f7c54e3f98ad957b2874f5e2.pdf
    • https://cdn.shopify.com/s/files/1/0437/7467/3057/files/49084601473.pdf
    • https://cdn.shopify.com/s/files/1/0454/7251/4206/files/butterfly_burning_yvonne_vera.pdf
    • https://static.usrfiles.com/ugd/6d59ab_9fb9d95bbe044bc59b045da02c51456e.pdf
    • https://static.usrfiles.com/ugd/c8a981_539dc9a4d34140d688f0708667c59375.pdf
    • https://static.usrfiles.com/ugd/07e02c_ce4284def4af4ef28bdf2282ed3693ab.pdf
    • https://static.usrfiles.com/ugd/0f5b72_2f7a503a1bc04ab29cbcd09b835d3d12.pdf
    • https://static.usrfiles.com/ugd/ade4e6_a16f3a28869243568cdd8a50bc2d5372.pdf
    • https://static.usrfiles.com/ugd/99afdc_d7688bc359a1499f986f7c95e710cef6.pdf
    • https://static.usrfiles.com/ugd/0d2908_c597755b12894eb8a10ab34c63b7201f.pdf
    • https://static.usrfiles.com/ugd/8ac1ab_310a95e905d345d18b1526630a67c069.pdf
    • https://static.usrfiles.com/ugd/b8c837_3ae7500b4a6e419fb4371d4f923e6e19.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_off00006d54.bin
2f7b53a176040bca1d4dc4466e94629dbc41fc1fa2f3eeaa0b3f9f3db7c75ddc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D54 5976 bytes
font_01_sfnt_off000081a8.bin
36668e232b6417237444fd0f76de1d06e59ca00de9f248f8c1b44166a9a5b57d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81A8 10700 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.