Malicious PDF — malware analysis report

Static analysis result for SHA-256 59216eb4e5abe1f4…

MALICIOUS

PDF

41.7 KB Created: 2020-08-31 11:52:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 65ed3822da3f98d5cf52c423b5a56c49 SHA-1: d8f66b442c86111ad81f3916ce4e7c7ecbbffa22 SHA-256: 59216eb4e5abe1f4fe592d41ef15f61de27fbe925f08f3426279dd0d4a14956a
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/wix?keyword=notre+dame+coach+usa'. Additionally, another critical heuristic indicates a PDF link farm, suggesting an attempt to distribute malicious content or engage in SEO manipulation. The document body, though heavily obfuscated, contains the malicious URL and references to 'Notre dame coach usa', likely a lure.

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.cc/wix?keyword=notre+dame+coach+usa
    • https://static.usrfiles.com/ugd/34e21e_9a1094fa7c604ea0a05ead80b5d0423e.pdf
    • https://static.usrfiles.com/ugd/b7082a_48d962382afc418784f15df392cf22d0.pdf
    • https://static.usrfiles.com/ugd/3ab5ed_aeca7ff3352340769a71340b8595be72.pdf
    • https://static.usrfiles.com/ugd/4b7290_16fd6a9a4b9545d5923bace4023370ec.pdf
    • https://static.usrfiles.com/ugd/b8c837_7beb640a4f9040a49920aa0e436c6a55.pdf
    • https://cdn.shopify.com/s/files/1/0460/2629/3407/files/myfitnesspal_not_syncing_workout.pdf
    • https://cdn.shopify.com/s/files/1/0437/1798/4405/files/20872487274.pdf
    • https://cdn.shopify.com/s/files/1/0438/2218/6653/files/rizobololinisepeveduvosaw.pdf
    • https://cdn.shopify.com/s/files/1/0431/5820/8674/files/nexiluwupozisovijanazepu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/51982080438.pdf
    • https://cdn.shopify.com/s/files/1/0430/7222/5442/files/present_tense_spanish_verbs_worksheets.pdf
    • https://cdn.shopify.com/s/files/1/0433/8227/6250/files/terraria_architect_gizmo_pack.pdf
    • https://cdn.shopify.com/s/files/1/0437/0615/5173/files/aptitude_test_book_free_download.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_off00006227.bin
b0a5b9cb4c25b825adc60d00bfc0b781c55507fc153ec6e244a21086316edabf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6227 5116 bytes
font_01_sfnt_off00007365.bin
cf3eb1f173645c313c3d1c18a68bb70b120f88400129b924ff2c458f51c901be		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7365 11864 bytes

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