Malicious PDF — malware analysis report

Static analysis result for SHA-256 bba9f0495099ed83…

MALICIOUS

PDF

58.5 KB Created: 2020-08-20 13:20:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 506d4dfcfae07bd1720c31bbb0aa1d6b SHA-1: 8e0881c761c7ea75fd7793eba4fc5a1978d0fb17 SHA-256: bba9f0495099ed83dc3d06bf7af47ee05cbdaa1c74c9fbbd6772924231d72bfd
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a malicious redirector link that points to a link farm of 22 other PDF files, likely for SEO poisoning or to obscure the final destination. The primary malicious URL is 'https://ttraff.ru/pify?keyword=android+notification+builder+is+deprecated', which is designed to lure users into clicking by referencing a technical topic. The document body, though heavily obfuscated, contains this URL and other benign-looking PDF links hosted on Shopify. No scripts were extracted from this sample.

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=android+notification+builder+is+deprecated
    • http://mufum.edithbp.com/uploads/1/3/0/7/130776688/pozepavipu.pdf
    • https://cdn.shopify.com/s/files/1/0430/2602/2554/files/17451679198.pdf
    • https://cdn.shopify.com/s/files/1/0435/9330/2178/files/xadupenuvumavelipemaleb.pdf
    • https://cdn.shopify.com/s/files/1/0434/5813/4168/files/holland_code_careers.pdf
    • https://cdn.shopify.com/s/files/1/0431/4470/8245/files/50117722719.pdf
    • https://cdn.shopify.com/s/files/1/0440/6041/0006/files/cardiac_science_powerheart_g5_manual.pdf
    • https://cdn.shopify.com/s/files/1/0432/2348/2530/files/emergency_medicine_journal_author_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0434/5164/6119/files/free_afro_trap_instrumental_beats.pdf
    • https://cdn.shopify.com/s/files/1/0433/7631/2471/files/64976827837.pdf
    • https://cdn.shopify.com/s/files/1/0434/5122/0120/files/corrosion_of_aluminum_alloys.pdf
    • https://cdn.shopify.com/s/files/1/0428/3400/2086/files/dezedaxipepixur.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_off000092e9.bin
368cfceb79cffd0b88e135a1cd56600330ccd878159b1197ebd8bbd5070f7c07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92E9 5276 bytes
font_01_sfnt_off0000a4db.bin
0b609f66698f35446df89ec9aa00b780ac4af289a5778cc4c148e5278c7e411a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA4DB 10068 bytes
font_02_sfnt_off0000c775.bin
945115f6d333aac916ca78a4c87a19dd4828aa1f4d182cf1da7e5c9030963f60		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC775 16088 bytes

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