Malicious PDF — malware analysis report

Static analysis result for SHA-256 b42ce170bc95fbee…

MALICIOUS

PDF

50.4 KB Created: 2020-10-14 20:45:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6afdf61a280a2dadbe753dc85ea06974 SHA-1: 7bafc0d212072dbfb9b45c4ceef7c742c6884198 SHA-256: b42ce170bc95fbeece909aadeee0f6cfe51c3eb66ec69583c3d66067ee9aa8ab
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, a technique often used to redirect users to malicious websites. One of these links, https://ttraff.ru/pify?keyword=daniel+pink+motivation+pdf, is identified as a known malicious redirector. The document body appears to be heavily obfuscated or corrupted, preventing a clear understanding of its intended lure.

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=daniel+pink+motivation+pdf
    • https://site-1043908.mozfiles.com/files/1043908/81533261356.pdf
    • https://site-1044017.mozfiles.com/files/1044017/28869766134.pdf
    • https://site-1038572.mozfiles.com/files/1038572/wofimimur.pdf
    • https://site-1037203.mozfiles.com/files/1037203/19188561018.pdf
    • https://site-1042985.mozfiles.com/files/1042985/21357061991.pdf
    • https://cdn.shopify
    • https://uploads.strikinglycdn.com/files/5ee95db6-2d3e-4892-ab0b-95ccd5ae73cf/kimumobav.pdf
    • https://uploads.strikinglycdn.com/files/2fd85ca1-02ef-4237-8983-9e3144180f69/tevekaxakizefi.pdf
    • https://uploads.strikinglycdn.com/files/1e2c38a8-a697-435e-9d6e-527f5fb496e2/98901001434.pdf
    • https://cdn.shopify.com/s/files/1/0434/8713/3860/files/hill_dwarf_wizard_5e.pdf
    • https://cdn.shopify.com/s/files/1/0436/9960/1576/files/jegokixozu.pdf
    • https://cdn.shopify.com/s/files/1/0431/1737/9750/files/wufodure.pdf
    • https://cdn.shopify.com/s/files/1/0440/6158/9669/files/22248694224.pdf
    • https://uploads.strikinglycdn.com/files/c21f08fb-13fe-4f6a-a2c9-cd477fba8ee3/sajamuwezotokiwisexek.pdf
    • https://uploads.strikinglycdn.com/files/a441fbb6-3176-4f73-979c-48ed5f39e934/35097055101.pdf
    • https://uploads.strikinglycdn.com/files/35b9393e-0c6f-4a85-8ce8-3e94e2ebefe1/letekolusorufofudinajot.pdf
    • https://uploads.strikinglycdn.com/files/1bb34cec-6a0a-41c7-b83e-a9161dc134a5/lobefutotewivo.pdf
    • https://uploads.strikinglycdn.com/files/f41447df-5d57-44f7-9e21-4bcf1a46ae5b/44634924594.pdf
    • https://cdn.shopify.com/s/files/1/0483/8673/6286/files/making_work_visible_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/9116/5333/files/nomixutovomifi.pdf
    • https://cdn.shopify.com/s/files/1/0459/0433/0906/files/32705921351.pdf
    • https://cdn.shopify.com/s/files/1/0501/0607/3253/files/62509356606.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_off000085eb.bin
56c901cf31dfd4e3c833089a8d144c3e3bae21b5453987ca0c5628bbb6ab7907
pdf-font-stream PDF embedded font (sfnt) at offset 0x85EB 5036 bytes
font_01_sfnt_off0000970c.bin
f505add70e6d1951202765bf5a8012a3636c0721bdea922690c50985420bd9d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x970C 11100 bytes