Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6df5c72c4405af7…

MALICIOUS

PDF

39.1 KB Created: 2020-08-30 02:28:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 644563b18fffcec6f82f78c970e58161 SHA-1: 586cec45752220755be46d94e8f21beff08a1ce3 SHA-256: b6df5c72c4405af78f67150d17f39fdb3f1ca9f10644a4e4172b90de32114561
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with multiple links pointing to benign Shopify domains and one critical link to a known malicious redirector at ttraff.ru. The document body, though heavily obfuscated, contains the URL https://ttraff.ru/wix?keyword=atlantis+bahamas+map, suggesting a lure to trick users into clicking the malicious link. 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/wix?keyword=atlantis+bahamas+map
    • https://static.usrfiles.com/ugd/0d002d_9d0251eaeaef4835a0f1ea796011b4f6.pdf
    • https://static.usrfiles.com/ugd/d54300_249a52b5ec9d4fccbc32873e70d2c4f8.pdf
    • https://static.usrfiles.com/ugd/48d9a1_beaf1960da744a3d90e4411414d45e36.pdf
    • https://static.usrfiles.com/ugd/b8c837_52b1f7723aae4e51b8b7a0f5db87dec4.pdf
    • https://static.usrfiles.com/ugd/b8c837_12196ea79af14e468be3da3af526be7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_7ae8175f7d8343578c7e89f811b1cad2.pdf
    • https://cdn.shopify.com/s/files/1/0431/3694/2234/files/mejoretaketifejanefuma.pdf
    • https://cdn.shopify.com/s/files/1/0436/2724/9826/files/62354010065.pdf
    • https://cdn.shopify.com/s/files/1/0431/5987/9841/files/veferepuja.pdf
    • https://cdn.shopify.com/s/files/1/0428/3593/5388/files/rodufumemumisurexokubered.pdf
    • https://cdn.shopify.com/s/files/1/0427/8000/0423/files/benefits_of_banana_peel.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_off00005c82.bin
3bd65e1f0b8359e259ba811dd255a67ea8457d8c0d7739ae604936d6e65df275
pdf-font-stream PDF embedded font (sfnt) at offset 0x5C82 5092 bytes
font_01_sfnt_off00006d9c.bin
e5c3bdceb059340da0172e88bb36fd24c7e1a69045039d33516bb08f0ed71a8d
pdf-font-stream PDF embedded font (sfnt) at offset 0x6D9C 10144 bytes