Malicious PDF — malware analysis report

Static analysis result for SHA-256 3b285a10e52fedab…

MALICIOUS

PDF

45.5 KB Created: 2020-08-19 09:31:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 49123e93209b3d8ae93455f8898c9492 SHA-1: c09862d9e0d6e1d27f75c4ebddb6290f35ebf547 SHA-256: 3b285a10e52fedab43bc7cebab5369074c7ef7ac76c1ffbbcf0c8abe41205a31
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains text related to 'Kgmu bsc nursing admit card 2019', suggesting a phishing lure. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm strategy to improve search engine ranking and distribute malicious content. The primary malicious URL is https://ttraff.cc/pify?keyword=kgmu+bsc+nursing+admit+card+2019.

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/pify?keyword=kgmu+bsc+nursing+admit+card+2019
    • http://sazup.jvincentwalsh.com/uploads/1/3/1/4/131406676/zodalojixulutezexome.pdf
    • https://cdn.shopify.com/s/files/1/0432/7886/0454/files/63741892939.pdf
    • https://cdn.shopify.com/s/files/1/0451/0928/0933/files/oxford_bookworms_library_stage_3_frankenstein.pdf
    • https://cdn.shopify.com/s/files/1/0433/4547/7783/files/12527107989.pdf
    • https://cdn.shopify.com/s/files/1/0430/9506/4730/files/60730183881.pdf
    • https://cdn.shopify.com/s/files/1/0437/5724/0478/files/39384658765.pdf
    • https://cdn.shopify.com/s/files/1/0433/6641/6549/files/51888237658.pdf
    • https://cdn.shopify.com/s/files/1/0431/8298/1278/files/98144842041.pdf
    • https://cdn.shopify.com/s/files/1/0431/6538/4861/files/51364316129.pdf
    • https://cdn.shopify.com/s/files/1/0434/1694/4807/files/format_sql_server_stored_procedure_online.pdf
    • https://cdn.shopify.com/s/files/1/0437/4190/5057/files/how_to_delete_all_twitter_likes.pdf
    • https://cdn.shopify.com/s/files/1/0435/7318/2625/files/direct_and_back_titration.pdf
    • https://cdn.shopify.com/s/files/1/0435/4693/5451/files/26459695490.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_off00005dc5.bin
23d5de7769c724025f46fd8adac8b88a8189d8c8e82c2e95d0dc234ea5cc0f51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DC5 5820 bytes
font_01_sfnt_off0000717f.bin
fc3a3c1f733706c27b0864187228e16a186d43b937bf513680a759f55acb26ff		 pdf-font-stream PDF embedded font (sfnt) at offset 0x717F 10060 bytes
font_02_sfnt_off00009432.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9432 16092 bytes

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