Malicious PDF — malware analysis report

Static analysis result for SHA-256 97af5e54f953092f…

MALICIOUS

PDF

52.1 KB Created: 2020-08-20 19:27:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 58cee1a6e6859976758aca10b606782b SHA-1: 22dc63dead3f0801a017222e868bd799f6572226 SHA-256: 97af5e54f953092f0ae307b55fd08fcbd2aa606bb940bf61ee3a22d677e5b0fc
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, with a critical heuristic firing indicating it is a link farm designed to redirect users. One of the primary links points to a known malicious redirector service, 'ttraff.ru', which likely serves as a gateway to further malicious content. The document body itself is heavily obfuscated and contains the same URLs, suggesting a coordinated effort to lure users to malicious sites.

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=baldesion+arsenal+ozma+guide
    • http://files.lisagoethemcginn.com/uploads/1/3/1/8/131871419/a147e7d1c7f750.pdf
    • http://files.amerihealthmedical.com/uploads/1/3/1/0/131071129/limizusajetir.pdf
    • http://files.conklingmarina.net/uploads/1/3/1/4/131437657/goxisejuzasubuneloz.pdf
    • http://pifejadaf.2ndnaturedesign.net/uploads/1/3/1/6/131606490/wiranetoj.pdf
    • https://cdn.shopify.com/s/files/1/0435/9222/0840/files/60146557509.pdf
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/nofewoj.pdf
    • https://cdn.shopify.com/s/files/1/0440/1725/4565/files/adios_nonino_astor_piazzolla_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38692385895.pdf
    • https://cdn.shopify.com/s/files/1/0431/5647/1959/files/wotavojavor.pdf
    • https://cdn.shopify.com/s/files/1/0433/6841/5400/files/xawagamonixivowopukusa.pdf
    • https://cdn.shopify.com/s/files/1/0437/6700/5333/files/the_budget_savvy_wedding_planner.pdf
    • https://cdn.shopify.com/s/files/1/0432/9334/3912/files/difitetolo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5552/1687/files/xeputawazavu.pdf
    • https://cdn.shopify.com/s/files/1/0437/2132/6742/files/mipapelowolizob.pdf
    • https://cdn.shopify.com/s/files/1/0434/0944/0933/files/18083177200.pdf
    • https://cdn.shopify.com/s/files/1/0430/0737/7567/files/xorepizukiv.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_off0000817b.bin
0c04ce3a6d89b7c6c57269633a6be75ae0e650c4a897b55bb715928a019f631c
pdf-font-stream PDF embedded font (sfnt) at offset 0x817B 5048 bytes
font_01_sfnt_off00009281.bin
f780f684dab5e3d53a968d9df78d69fe488ccdfe085a90b1c217a67ee71b83be
pdf-font-stream PDF embedded font (sfnt) at offset 0x9281 10304 bytes
font_02_sfnt_off0000b5b0.bin
4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3
pdf-font-stream PDF embedded font (sfnt) at offset 0xB5B0 4324 bytes