Malicious PDF — malware analysis report

Static analysis result for SHA-256 820e7a3a3fc9d898…

MALICIOUS

PDF

48.9 KB Created: 2020-08-27 18:07:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70f7e29f8a88820f638f3c666e297862 SHA-1: c3f1c496033730789cbb82bad58000bdf2b3137c SHA-256: 820e7a3a3fc9d898b2eaa8d7173e91e1e5534120b1fd4a0f4733e3a17b70a147
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=44+pro+gloves+review'. This URL is part of a link farm designed to manipulate search engine results, with many links pointing to benign Shopify PDFs. The document body, though heavily obfuscated, contains the same malicious URL. The primary attack pattern involves luring the user to click 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.com/pify?keyword=44+pro+gloves+review
    • http://ferifam.cocktailsnponytails.com/uploads/1/3/2/8/132816066/4740956.pdf
    • http://vobivufu.carolynbeckphotography.com/uploads/1/3/1/1/131164243/fidetipexi.pdf
    • http://senijuza.lwhsphilanthropy.com/uploads/1/3/0/7/130775734/9b32b8f6a8a.pdf
    • https://cdn.shopify.com/s/files/1/0435/2232/6696/files/6886687526.pdf
    • https://cdn.shopify.com/s/files/1/0435/7718/0328/files/89187434749.pdf
    • https://cdn.shopify.com/s/files/1/0433/4836/1375/files/vumekurezozesoriw.pdf
    • https://cdn.shopify.com/s/files/1/0429/8624/2209/files/tijugegatabowu.pdf
    • https://cdn.shopify.com/s/files/1/0430/9699/8048/files/xapetiwuta.pdf
    • https://cdn.shopify.com/s/files/1/0438/8149/6744/files/benefits_of_speaking_in_tongues.pdf
    • https://cdn.shopify.com/s/files/1/0432/2823/3887/files/examenes_matrices_selectividad.pdf
    • https://cdn.shopify.com/s/files/1/0433/0881/0398/files/57184490156.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/89377355024.pdf
    • https://cdn.shopify.com/s/files/1/0448/2813/1485/files/allen_test_papers_2017_jee.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_off00006c97.bin
5d23e32f48f747ce86223e3aaee033db4166063138fe8ce6a9eaa7dfe573996e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C97 4920 bytes
font_01_sfnt_off00007d84.bin
0539e0720dd82ca36974913cd203b8056b0860ac2f5b09ae26e65fbe774cece1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D84 4564 bytes
font_02_sfnt_off00008f54.bin
e01903fde83bd0ddfac60357e19b1280d97b83722efd40d0bd09aabc32e5cf93		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F54 10828 bytes

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