Malicious PDF — malware analysis report

Static analysis result for SHA-256 464e5f3a7c6ef0eb…

MALICIOUS

PDF

48.6 KB Created: 2020-08-31 08:17:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffb0278faca3e2b62f1bd439186240d1 SHA-1: 7bd49dd8fb357c2e2427791a2c98b893c5c7ee63 SHA-256: 464e5f3a7c6ef0ebd7f86c489f3ae68bf5b3b00e16ac16384391f3d73e10a253
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/wix?keyword=analytical+mechanics+of+space+systems+solutions+manual+pdf'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links to external PDFs hosted on 'static.usrfiles.com'. The document body, though heavily obfuscated, contains text related to 'analytical mechanics' and the malicious URL, suggesting a lure to disguise the malicious intent. 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.com/wix?keyword=analytical+mechanics+of+space+systems+solutions+manual+pdf
    • https://static.usrfiles.com/ugd/0cd3a8_eded6f4176f94e4883f747b2afe05cb5.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b9270f295854ca2850a45c6260834a3.pdf
    • https://static.usrfiles.com/ugd/b5472a_2793263662414d21a5b3f4fabc3c26c0.pdf
    • https://static.usrfiles.com/ugd/b8c837_4c8d9e87ee584bd994147cb4599f4767.pdf
    • https://static.usrfiles.com/ugd/2e16aa_18d5fa0e40b5487688d83c689207ddcb.pdf
    • https://static.usrfiles.com/ugd/f4de5e_238e863cc705499d8a44b3eacf63c33f.pdf
    • https://static.usrfiles.com/ugd/b8c837_205833fb5abc4c7cbb623d19e83daa11.pdf
    • https://static.usrfiles.com/ugd/3f0e57_81ae061e01ff46dea59e0dc06ff4b153.pdf
    • https://static.usrfiles.com/ugd/b8c837_efec9eb68e56477fb6a6a8eed6735244.pdf
    • https://cdn.shopify.com/s/files/1/0433/6985/7176/files/18188288042.pdf
    • https://cdn.shopify.com/s/files/1/0436/2086/0064/files/lemejuwipo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4982/9023/files/25131219795.pdf
    • https://cdn.shopify.com/s/files/1/0432/3826/0899/files/39350464734.pdf
    • https://cdn.shopify.com/s/files/1/0429/2893/0979/files/ranowovenejegin.pdf
    • https://static.usrfiles.com/ugd/d5cf39_1af555f78b184486819afc9a484000c6.pdf
    • https://static.usrfiles.com/ugd/ea2f88_fa58af34b7544a9887fbd8f34e96aa99.pdf
    • https://static.usrfiles.com/ugd/b8c837_9825a9fdc3954a0e9e0552a59b86333b.pdf
    • https://static.usrfiles.com/ugd/136d07_d6952444c8574292a9dbcdcfe82482ed.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_off00005ed4.bin
c20f9a04a3eedeb8bf9980129df133404f4e8bb071b20a7c77652859b08a0729
pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED4 5392 bytes
font_01_sfnt_off00007107.bin
a5fd55190d4e8868ade42ce19e3dcdd3a39959c3f331c427685237a7ca7dae0d
pdf-font-stream PDF embedded font (sfnt) at offset 0x7107 14824 bytes
font_02_sfnt_off00009f4b.bin
e93acd332f5893643511f4cefd38969ad5c744ad1b08842a788b6be7d277dd15
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F4B 16204 bytes