Malicious PDF — malware analysis report

Static analysis result for SHA-256 be8be3062afff9ce…

MALICIOUS

PDF

51.8 KB Created: 2020-08-31 08:38:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4dfdc75e94566cdb61e81def6e3bf7fa SHA-1: b735552538ff44ce02356f945c2f857ba3962ead SHA-256: be8be3062afff9ce4372a37e8cfc0f2df60257301275dba82482625d4da4597a
120 Risk Score

Malware Insights

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

The PDF file was flagged for containing a large number of external links, a technique often used to obscure malicious destinations or to create SEO spam. One of the embedded URLs, 'https://ttraff.ru/wix?keyword=promise+reprise+sheet+music', is identified as a known malicious redirector. While the document body contains garbled text and what appears to be metadata, the primary threat stems from the malicious link, suggesting a phishing or malware distribution attempt.

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/wix?keyword=promise+reprise+sheet+music
    • https://cdn.shopify.com/s/files/1/0430/6645/8265/files/cfo_information_technology.pdf
    • https://cdn.shopify.com/s/files/1/0429/2821/0073/files/92759292760.pdf
    • https://cdn.shopify.com/s/files/1/0436/5929/6926/files/filing_an_amended_fbar_form.pdf
    • https://cdn.shopify.com/s/files/1/0427/7927/9527/files/vulazunowi.pdf
    • https://static.usrfiles.com/ugd/b8c837_7fb9aedc51804b0da9bd5ac73ec33ef4.pdf
    • https://static.usrfiles.com/ugd/b8c837_2f5f02556bc54717b8328048df782305.pdf
    • https://static.usrfiles.com/ugd/bb13a2_00db501d4bb14fdfbd0fab7aa54ffced.pdf
    • https://cdn.shopify.com/s/files/1/0432/7587/8564/files/endnote_nature_scientific_reports.pdf
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/vurolitelataborijomozapo.pdf
    • https://cdn.shopify.com/s/files/1/0431/9979/1268/files/5875192523.pdf
    • https://cdn.shopify.com/s/files/1/0430/3749/1357/files/66917702481.pdf
    • https://cdn.shopify.com/s/files/1/0431/3504/1693/files/warhammer_40k_ork_codex_8th_edition_vk.pdf
    • https://static.usrfiles.com/ugd/6cf392_ecf919eb1c034f71b8055f9af4bc6a9e.pdf
    • https://static.usrfiles.com/ugd/3ceeb9_3e2591b015674e468b177265fe3f8c8f.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000062d8.bin
e0548f024e838628ffba9d013b3ca35018de753ac96b819167b381354a5af427
pdf-font-stream PDF embedded font (sfnt) at offset 0x62D8 4708 bytes
font_01_sfnt_off000072d8.bin
873659cea7f306caafff665b2b55c57f3a00126e1f7e9d3b7b544d7a3efc5c11
pdf-font-stream PDF embedded font (sfnt) at offset 0x72D8 2556 bytes
font_02_sfnt_off00007de5.bin
d63721b696e5bf114b15c3a0f04d54c8c10dc63d8e6c32da7b5c1a27c5c0fe8c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7DE5 13176 bytes
font_03_sfnt_off0000a6a9.bin
690fec9ab4a086c8e5ad60c48018ee667eaddf2e0670bae5e73d5b18dfb35b17
pdf-font-stream PDF embedded font (sfnt) at offset 0xA6A9 2860 bytes
font_04_sfnt_off0000b169.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34
pdf-font-stream PDF embedded font (sfnt) at offset 0xB169 4324 bytes