Malicious PDF — malware analysis report

Static analysis result for SHA-256 4556f0e317d56885…

MALICIOUS

PDF

38.7 KB Created: 2020-08-22 05:47:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 596c410acb190ecf87490825b006b481 SHA-1: 20886a5a6f8919f0afac8dde0379be30a0a7fb56 SHA-256: 4556f0e317d56885310d35ad22b55aa2322eda583b04242b4b55cb8a206586ee
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=crestview+florida+weather+report'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, including one to 'https://cdn.shopify.com/s/files/1/0438/3830/8512/files/sepunaxiveguzetoferuxesup.pdf'. The document body, though heavily obfuscated, contains text related to a weather report, suggesting a lure to entice users 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.ru/pify?keyword=crestview+florida+weather+report
    • http://files.elainejaryart.com/uploads/1/3/1/6/131637695/biniduwotufizofox.pdf
    • http://files.lindsaywaxleracupuncture.com/uploads/1/3/0/9/130969489/dc7df2f66.pdf
    • https://cdn.shopify.com/s/files/1/0438/3830/8512/files/sepunaxiveguzetoferuxesup.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/62255350911.pdf
    • https://cdn.shopify.com/s/files/1/0430/6770/3457/files/roku_media_player_alternative.pdf
    • https://cdn.shopify.com/s/files/1/0433/7994/9718/files/marogunuvadiz.pdf
    • https://cdn.shopify.com/s/files/1/0431/8897/7813/files/raneb.pdf
    • https://cdn.shopify.com/s/files/1/0431/0512/4516/files/witiwid.pdf
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/tametigumikunopo.pdf
    • https://cdn.shopify.com/s/files/1/0436/0021/6232/files/pdf_to_word_online_converter_free_no_email.pdf
    • https://cdn.shopify.com/s/files/1/0433/5039/2984/files/92858362675.pdf
    • https://cdn.shopify.com/s/files/1/0430/7006/2754/files/38916663473.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_off00004cc5.bin
66de097ef1a50ba6492036d23b9fc642a73457f39bc3dacf81e3cf0a4f69ebbc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4CC5 4984 bytes
font_01_sfnt_off00005de7.bin
78df1b8b3204537d55dd6b62b0a3fdfb466d27b4cbcea0f38c97fc6fdbf92106		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE7 10004 bytes
font_02_sfnt_off00008031.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8031 4324 bytes

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