Malicious PDF — malware analysis report

Static analysis result for SHA-256 9ee65ebacd6d0c51…

MALICIOUS

PDF

49.4 KB Created: 2020-08-19 17:19:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 43a5d890bd8def65e6a3671c007e87af SHA-1: 54b2fd0e54ce3dd94cc770c5131a8db0ef7bafc2 SHA-256: 9ee65ebacd6d0c5181f2ae41e2e226ad8a0c69aae4f78d871e127efcfccaca79
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO manipulation. One critical heuristic identified a link to a known malicious redirector, ttraff.ru, which is used in conjunction with a search query for 'Baldi's basics mod easy'. This indicates a likely attempt to lure users to malicious content through deceptive search result-like links. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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=baldi%2527+s+basics+mod++easy
    • http://files.glimmericks.com/uploads/1/3/0/7/130738765/fumatisagir.pdf
    • http://files.sheltonmetal.com/uploads/1/3/2/3/132303071/xusodesaxiwow_lanizuvazeka_bupuwib.pdf
    • https://cdn.shopify.com/s/files/1/0430/9896/4117/files/pekijilamolofibo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6510/4791/files/sesanuve.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9195/files/fopefosotapa.pdf
    • https://cdn.shopify.com/s/files/1/0432/4750/1474/files/vozuvepigikaxe.pdf
    • https://cdn.shopify.com/s/files/1/0437/0992/3493/files/anglican_rosary_prayers.pdf
    • https://cdn.shopify.com/s/files/1/0432/2348/2535/files/manuale_apicoltore.pdf
    • https://cdn.shopify.com/s/files/1/0434/7301/0845/files/nufipikepuwuwoxopitanuxeg.pdf
    • https://cdn.shopify.com/s/files/1/0432/9367/1588/files/atomic_structure_exam_questions_gcse.pdf
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/bernard_lewis_middle_east.pdf
    • https://cdn.shopify.com/s/files/1/0431/7354/4093/files/mathematics_for_economics_hoy_solutions.pdf
    • https://cdn.shopify.com/s/files/1/0437/3502/3770/files/agricultural_extension_and_communication.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bugos.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_off00006c85.bin
e0f159f6ea2ce34b23b852f598769c8f94ac3fd1e40feeb63b81b068317df4d5
pdf-font-stream PDF embedded font (sfnt) at offset 0x6C85 5312 bytes
font_01_sfnt_off00007e8b.bin
378902fe388a2fbc028f097262eabc4c0aaab6d7d4bb3b618ea43f2039987d0c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7E8B 10612 bytes
font_02_sfnt_off0000a2e9.bin
8e6f44f21a6cb6464db7b2705935d0eed1bbcefc8c2e8ed09117199423754ed5
pdf-font-stream PDF embedded font (sfnt) at offset 0xA2E9 16332 bytes