Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f4e8727af4059ef…

MALICIOUS

PDF

46.4 KB Created: 2020-08-13 21:57:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 75c4cd87dfc5c113dfcf7a05dd75d428 SHA-1: f5b6a69ef537159569fb9169a3927e4d22237daa SHA-256: 2f4e8727af4059efbbf024767f789be1b808a3bc023bb1f4243c179fca2fa6e4
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting an attempt to manipulate search engine results or distribute content through numerous links. The primary malicious URL identified is https://ttraff.ru/pify?keyword=hipster+guide+chiang+mai, which is flagged as a malicious redirector. The document body contains garbled text along with the malicious URL and several benign Shopify URLs, indicating a likely attempt to lure users to malicious content.

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.ru/pify?keyword=hipster+guide+chiang+mai
    • http://gagib.mimirmarketing.net/uploads/1/3/1/3/131380213/basimareg_sajukupi.pdf
    • http://mevuze.nanni.info/uploads/1/3/1/4/131453215/mogurivizorukivono.pdf
    • http://files.johanneimmis.com/uploads/1/3/0/9/130969837/nejadaviwab.pdf
    • http://files.balancedpets.ca/uploads/1/3/2/6/132682745/5990b46e.pdf
    • https://cdn.shopify.com/s/files/1/0434/8100/6244/files/notogowazofodidikixutib.pdf
    • https://cdn.shopify.com/s/files/1/0438/7281/3211/files/fonirap.pdf
    • https://cdn.shopify.com/s/files/1/0432/6329/5650/files/korn_alone_i_break.pdf
    • https://cdn.shopify.com/s/files/1/0430/8933/0330/files/gufivimezisizifab.pdf
    • https://cdn.shopify.com/s/files/1/0435/4365/8650/files/8026935992.pdf
    • https://cdn.shopify.com/s/files/1/0431/6535/2093/files/gigapoj.pdf
    • https://cdn.shopify.com/s/files/1/0431/7996/6628/files/wafijezam.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/misojini.pdf
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/fekunukexuvufu.pdf
    • https://cdn.shopify.com/s/files/1/0441/0513/8328/files/ronuxezogogevopamopabal.pdf
    • https://cdn.shopify.com/s/files/1/0432/9403/2040/files/83996954330.pdf
    • https://cdn.shopify.com/s/files/1/0434/8693/7253/files/candidase_de_repetio.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_off0000743a.bin
6e0365ecec04fc76722796710598feba9e8ea1bf4eaa92e80ad39b1eb450c1c2
pdf-font-stream PDF embedded font (sfnt) at offset 0x743A 5416 bytes
font_01_sfnt_off00008670.bin
fa255735c07f74fe6c8f77417de7829c1e2860869e36cfcca9b550fc0b5bf124
pdf-font-stream PDF embedded font (sfnt) at offset 0x8670 10940 bytes