Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed27410e21f5084a…

MALICIOUS

PDF

45.6 KB Created: 2020-09-01 03:07:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 629258bb20237676fa72f53bc097d9b4 SHA-1: b9a2bfbda96d159dfe4065dadbbd4f8d7c406af6 SHA-256: ed27410e21f5084a005787e1a50256508a1e2c079250b2f0e7089f8779190501
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, specifically pointing to 'https://ttraff.cc/wix?keyword=fitted+bed+sheets+target'. This URL is likely the primary mechanism for delivering a malicious payload or directing users to a phishing site. The presence of a large number of external PDF links, while many are benign, suggests a link farm or SEO poisoning attempt to obscure the malicious redirector. 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.cc/wix?keyword=fitted+bed+sheets+target
    • https://static.usrfiles.com/ugd/e2c250_b009a0297a7849228d4fcd607ad0dbfa.pdf
    • https://static.usrfiles.com/ugd/b8c837_c1c9d490aab846f5b80f94d44adeccb7.pdf
    • https://static.usrfiles.com/ugd/b8c837_9b344450f25b49bf95e1d2fa05b85f01.pdf
    • https://static.usrfiles.com/ugd/b8c837_e42f7d1fd22a4e12a6a2d0c7342f3d16.pdf
    • https://cdn.shopify.com/s/files/1/0439/2324/3176/files/economic_development_todaro_chapter.pdf
    • https://cdn.shopify.com/s/files/1/0431/7626/3841/files/gajitisovo.pdf
    • https://cdn.shopify.com/s/files/1/0434/5082/6919/files/cardinal_and_ordinal_numbers_esl.pdf
    • https://cdn.shopify.com/s/files/1/0466/5648/7589/files/eplus_tv_guide.pdf
    • https://static.usrfiles.com/ugd/57c819_eca28ddcb6954250b114c9779d7118b6.pdf
    • https://static.usrfiles.com/ugd/0e9fc2_3f3874e32a5044b987dc2be8d841f3dc.pdf
    • https://static.usrfiles.com/ugd/b8c837_31dbd8fa2f504700938b1a38cfc66fb1.pdf
    • https://static.usrfiles.com/ugd/fb5067_c2f310bebe6148ee97b1d993c1af611a.pdf
    • https://static.usrfiles.com/ugd/cafc24_3a12d7f7b6034556af1919412f3bb9e0.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_off00006926.bin
f35b0b1ee7ad08286ad0b945d22e212ea3d69b7fa48aff57d92701503fbfc54c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6926 4720 bytes
font_01_sfnt_off0000793b.bin
570084c4895a9e7a33f17ec7591d43e53f46a173d24178ee2553bc509136558b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x793B 10140 bytes
font_02_sfnt_off00009bed.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9BED 4324 bytes

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