Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0646be5e9dc115e…

MALICIOUS

PDF

44.2 KB Created: 2020-08-31 07:19:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7557c4f9424f992df2c522733baa2451 SHA-1: 4b5cc03c6e60a75003f43415d576e357a9dd3ce8 SHA-256: b0646be5e9dc115e996a18c368ec8f665c6193097c21144f368e0e17b560b146
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'ttraff.link'. The document body, though heavily obfuscated, contains the same URL and a keyword related to obtaining in-game items, suggesting a lure. The PDF also contains a mass external link farm, with many links pointing to 'static.usrfiles.com', indicating a potential SEO spam or link distribution tactic. The primary malicious IOC is the redirector URL.

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.link/wix?keyword=how+to+get+obsidian+in+minecraft
    • https://static.usrfiles.com/ugd/b8c837_740a58a473de48458ffdd71cf28d7b2d.pdf
    • https://static.usrfiles.com/ugd/b8c837_95d3cb5d56764b24be6e54d0e39ab094.pdf
    • https://static.usrfiles.com/ugd/df73ab_9fd0ed173c574fbf90ef3b0da2884f16.pdf
    • https://static.usrfiles.com/ugd/b6edda_3b4b6b3701bd477c94f4d09cc2ac20d1.pdf
    • https://static.usrfiles.com/ugd/e23fbb_d0ccab26b5244f8b9f90b586906d1a7a.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf74f1ab28294179afd852799f9906ea.pdf
    • https://cdn.shopify.com/s/files/1/0460/1665/9623/files/adobe_creative_suite_photoshop.pdf
    • https://cdn.shopify.com/s/files/1/0435/8668/3037/files/wings_of_fire_abdul_kalam.pdf
    • https://cdn.shopify.com/s/files/1/0433/6559/7342/files/fazamesagariwi.pdf
    • https://static.usrfiles.com/ugd/b8c837_1c000e4c12a145e98246d6fbf9937f2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_62d99191acb04a11bd3b2ba781867cdd.pdf
    • https://static.usrfiles.com/ugd/10a4aa_fff7f95f883c4aafa245da90f72c1aae.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_off00006fca.bin
1e9c7690ea5b73d4ef8a5a0d651566112844b0867875bd407dbeae8deacba7bc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCA 5504 bytes
font_01_sfnt_off00008274.bin
a2f9fdc4d4fdc33815536bc32c03232a7b7da9eebe348ef3b126ca106f1792c0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8274 9960 bytes

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