Malicious PDF — malware analysis report

Static analysis result for SHA-256 532ef59755010fc4…

MALICIOUS

PDF

40.7 KB Created: 2020-09-05 17:27:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 883fe371c3406596ed0370a08b865685 SHA-1: fda4b561736597b8e32aa8a08ea76be47cb1b0e8 SHA-256: 532ef59755010fc426031fec3f7b80225e4996df11254a6c068fd699f48df9e1
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, specifically pointing to 'https://ttraff.link/wix?keyword=baixar+appvn+apkpure'. This URL is presented within the document body, disguised as a link to download an application. The file also exhibits characteristics of a PDF link farm, with numerous links pointing to Shopify domains, though most of these appear benign. The primary malicious indicator is the redirector URL, which is designed to lead users to a harmful destination.

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.link/wix?keyword=baixar+appvn+apkpure
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/african_history_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0430/7949/9940/files/hermione_granger_gryffindor_uniform.pdf
    • https://cdn.shopify.com/s/files/1/0430/3486/9921/files/96458861605.pdf
    • https://cdn.shopify.com/s/files/1/0435/7678/7103/files/blood_money_bollywood_full_movie_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/5920/7582/files/fulefe.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/59004888972.pdf
    • https://cdn.shopify.com/s/files/1/0437/3587/5745/files/15171675569.pdf
    • https://cdn.shopify.com/s/files/1/0435/1941/0335/files/96803077248.pdf
    • https://cdn.shopify.com/s/files/1/0429/3145/4119/files/virekemewebaguwazugap.pdf
    • https://cdn.shopify.com/s/files/1/0429/9846/4661/files/26548865403.pdf
    • https://cdn.shopify.com/s/files/1/0434/3493/4429/files/41686393429.pdf
    • https://cdn.shopify.com/s/files/1/0428/6844/1254/files/49772629808.pdf
    • https://cdn.shopify.com/s/files/1/0433/1310/2998/files/kevenixomomakanewitix.pdf
    • https://cdn.shopify.com/s/files/1/0432/1535/6067/files/garth_brooks_discography_torrents.pdf
    • https://cdn.shopify.com/s/files/1/0436/0385/3469/files/6725275278.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_off00004e0e.bin
cf8a17a0e972d6fa0d3e8c673d0af2d9f458d229a3104614fc797d243b8fce67
pdf-font-stream PDF embedded font (sfnt) at offset 0x4E0E 4844 bytes
font_01_sfnt_off00005ea7.bin
97049aa70a034c1f7ea61ba7a0a964cbf0e1cdf446da4e8bf1c91ff91cdb9cf0
pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA7 10020 bytes
font_02_sfnt_off0000805f.bin
dcc437beaabc532c244cb2402c7e187dabb6fccd34af89cd9e2270a2a4498d3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x805F 16168 bytes