Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1cf24fd8f3abe3…

MALICIOUS

PDF

41.2 KB Created: 2020-08-29 01:50:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 80a2cb66aefbef8b4a9f937edd40c4c0 SHA-1: 295d6d62c26b5de4dc71fd02d36ee4183e7c3b26 SHA-256: fc1cf24fd8f3abe34d32e502b18d692034f7bc988db01329540cb4e8dab99827
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, identified as a link farm. One of these links, 'https://ttraff.cc/wix?keyword=o%2527keefe+and+merritt+wall+oven', points to known malicious redirector infrastructure. The document body, though heavily obfuscated, appears to contain this malicious URL and other benign-looking PDF links, suggesting a lure to trick users into clicking the malicious link.

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=o%2527keefe+and+merritt+wall+oven
    • https://static.usrfiles.com/ugd/b8c837_c1920bac43bc4cbc9166c3adc1abea13.pdf
    • https://static.usrfiles.com/ugd/b8c837_63f03e14d82443f094a9e04d2b651b2a.pdf
    • https://static.usrfiles.com/ugd/b8c837_bb14eaa8021b4ea0883159d0c61abaf0.pdf
    • https://static.usrfiles.com/ugd/b8c837_f601a48014ad4ce6a86afe8b1550cd5c.pdf
    • https://cdn.shopify.com/s/files/1/0461/9832/5397/files/44285407883.pdf
    • https://cdn.shopify.com/s/files/1/0431/5440/7578/files/missing_render-_texture_extension.pdf
    • https://cdn.shopify.com/s/files/1/0429/1559/4393/files/backus_naur_form_notation.pdf
    • https://cdn.shopify.com/s/files/1/0433/3086/3259/files/poisson_cartilagineux.pdf
    • https://cdn.shopify.com/s/files/1/0430/0704/9877/files/mh_cet_law_2019_score_card.pdf
    • https://static.usrfiles.com/ugd/b8c837_bf754ad8e78246df8fccd1dcdfbb113d.pdf
    • https://static.usrfiles.com/ugd/b8c837_4c5d16abe8724c6e8d96a30362a1b6ce.pdf
    • https://static.usrfiles.com/ugd/b8c837_288cb9325af442adb59e88c661e492c6.pdf
    • https://static.usrfiles.com/ugd/b8c837_204a331194f440838d8c927d2a2c01f9.pdf
    • https://static.usrfiles.com/ugd/b8c837_1225a9ef6b364cad995240a823b438a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_f597cbd6716a4d549b8655d98ca9ebd9.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_off000059c4.bin
1109800ff45aa55f993eca70d756115e683802a4873a5a6a1ef5198d59f1aeb0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x59C4 5152 bytes
font_01_sfnt_off00006b54.bin
e9a5a1f6ed95b1e3669933bb00002ad32a1708c3e0b735191cad5e02368a6c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B54 1800 bytes
font_02_sfnt_off000073e2.bin
a89e142e0c6452d6b19dedcab5aa8eddcd11762a2a19e06d1375fbc08192e286		 pdf-font-stream PDF embedded font (sfnt) at offset 0x73E2 10436 bytes

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