Malicious PDF — malware analysis report

Static analysis result for SHA-256 ccf5c028aed71ae1…

MALICIOUS

PDF

114.8 KB Created: 2020-08-07 01:19:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8279298f72e95b90340e75d1a655e29a SHA-1: 5ce85e7f05672d66efadd56e0a20984db151977d SHA-256: ccf5c028aed71ae1d6b0b23ea5859c020ccc00edec16d6cc9d0a56449ea97ddc
120 Risk Score

Malware Insights

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

The PDF file contains embedded links, one of which points to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Cisco catalyst 3650 series switches data sheet pdf', suggesting a lure to entice users to click the malicious link. The PDF_MALICIOUS_REDIRECTOR_LINK heuristic confirms the presence of a link to malicious infrastructure.

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=cisco+catalyst+3650+series+switches+data+sheet+pdf
    • http://tumivex.fccdks.org/uploads/1/3/0/8/130874620/bopuko_tirilezuvabe.pdf
    • http://files.sylrossi.com/uploads/1/3/2/6/132683181/kugosijudosop-tezuvokuj.pdf
    • http://files.maniacgirls.com/uploads/1/3/1/6/131606069/80abde3c8c.pdf
    • https://cdn.shopify.com/s/files/1/0435/4048/0164/files/52621623786.pdf
    • https://cdn.shopify.com/s/files/1/0448/0391/5933/files/baciloscopia_que_es.pdf
    • https://cdn.shopify.com/s/files/1/0430/8857/6661/files/xofufujatukuwelisaz.pdf
    • https://cdn.shopify.com/s/files/1/0433/8476/6620/files/16813967733.pdf
    • https://cdn.shopify.com/s/files/1/0436/8865/7049/files/91319614566.pdf
    • https://cdn.shopify.com/s/files/1/0438/1471/5549/files/chakras_el_viaje_del_heroe.pdf
    • https://cdn.shopify.com/s/files/1/0429/5157/3657/files/zomenivako.pdf
    • https://cdn.shopify.com/s/files/1/0430/3945/7431/files/pufolor.pdf
    • https://cdn.shopify.com/s/files/1/0431/3215/8116/files/14586756116.pdf
    • https://cdn.shopify.com/s/files/1/0436/4769/7049/files/9506146316.pdf
    • https://cdn.shopify.com/s/files/1/0431/9019/0248/files/35786737721.pdf
    • https://cdn.shopify.com/s/files/1/0429/1035/1513/files/16245873828.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_off00017354.bin
7f06721e71365a2d37c868d361a36cd9721e5167fdee48e14efb2f11e60713a2
pdf-font-stream PDF embedded font (sfnt) at offset 0x17354 5928 bytes
font_01_sfnt_off0001878b.bin
f1e68e08b600cd4af69bbd68d0489b9e88f0808051372f9fc210276995130dc5
pdf-font-stream PDF embedded font (sfnt) at offset 0x1878B 17532 bytes