Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ccd77d32d27219b…

MALICIOUS

PDF

44.8 KB Created: 2020-07-27 23:55:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4e52a3b90d22c156da68c770b195e330 SHA-1: 30e61541ca8558a449509c1584feb3d1bdea76be SHA-256: 2ccd77d32d27219ba29f1547a27d21e10278413a628589e4728ecfbe4fe3f51e
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to domains associated with link farms and redirectors. The primary redirector URL, 'https://ttraff.ru/pify?keyword=neon+sign+maker+photoshop+action+free', is flagged as malicious. This suggests the document is designed to lure users into clicking through to potentially harmful websites by mimicking search results for free software.

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.ru/pify?keyword=neon+sign+maker+photoshop+action+free
    • http://files.sharedservicesct.com/uploads/1/3/1/3/131398475/nitak.pdf
    • http://files.centralhauling.com/uploads/1/3/1/4/131409098/porek.pdf
    • http://files.cottagefarmstables.com/uploads/1/3/0/8/130874175/zitogosuviguk.pdf
    • http://files.melissashowers.com/uploads/1/3/2/7/132740399/1333731.pdf
    • https://cdn.shopify.com/s/files/1/0429/7788/6367/files/buramu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xifenawapuvesuf.pdf
    • https://cdn.shopify.com/s/files/1/0430/8280/9508/files/vulipu.pdf
    • https://cdn.shopify.com/s/files/1/0441/3816/8472/files/39245919947.pdf
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/189269026.pdf
    • https://cdn.shopify.com/s/files/1/0429/2771/8567/files/93638604915.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/71409998288.pdf
    • https://cdn.shopify.com/s/files/1/0432/4209/4756/files/pojoderobodinajarulolew.pdf
    • https://cdn.shopify.com/s/files/1/0437/7349/3406/files/xiludivavimute.pdf
    • https://cdn.shopify.com/s/files/1/0430/3110/1603/files/34328313374.pdf
    • https://cdn.shopify.com/s/files/1/0430/1501/2511/files/sonodesezurun.pdf
    • https://cdn.shopify.com/s/files/1/0433/4256/1433/files/misaripixojetefe.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/
    • https://cdn.shopify.com/s/files/1/0434/8795/3053/files/189269026

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007157.bin
542adc9a75ae29c6533efb9e2fcc116e38469064364f8aa846d540e856ce8f77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7157 5220 bytes
font_01_sfnt_off000082ed.bin
06474db7be40ca77c4d6d902f477368c0786d1ef7bcb2c17e41593da995f98e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82ED 10236 bytes

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