Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2d74b576680abd6…

MALICIOUS

PDF

49.5 KB Created: 2020-08-24 09:59:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6386e0f4aa0cc48e1c4f51eb18fd5c44 SHA-1: 1324528844b5028a1da4a669b529dca4fd0929c6 SHA-256: c2d74b576680abd625c9ce44c1d0b034b8f0935e76c5411030f17a4d55f0ab08
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, pointing to 'https://ttraff.ru/pify?keyword=bsc+bed+form+last+date+2019+odisha'. This URL is likely used to redirect the user to a malicious site. The document body also contains this URL, reinforcing the lure. The file also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, suggesting an attempt to obscure the malicious destination.

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=bsc+bed+form+last+date+2019+odisha
    • http://mezekap.beavercreekbowlcompany.com/uploads/1/3/0/7/130739625/8522069.pdf
    • http://files.gowanuswines.com/uploads/1/3/1/4/131453615/losutezemonuf.pdf
    • http://karedik.resilientpeople.ca/uploads/1/3/1/4/131454215/fafab.pdf
    • http://files.artworksgalleryco-op.com/uploads/1/3/1/3/131380345/5554191.pdf
    • https://cdn.shopify.com/s/files/1/0437/4436/2647/files/39043843259.pdf
    • https://cdn.shopify.com/s/files/1/0430/1383/2857/files/carara_national_park_guided_tours.pdf
    • https://cdn.shopify.com/s/files/1/0429/1729/8342/files/99298363442.pdf
    • https://cdn.shopify.com/s/files/1/0437/1090/6518/files/gabion_wall_construction_details.pdf
    • https://cdn.shopify.com/s/files/1/0432/4550/2626/files/gevek.pdf
    • https://cdn.shopify.com/s/files/1/0435/2717/6343/files/hydrant_flow_test_report.pdf
    • https://cdn.shopify.com/s/files/1/0433/8283/3308/files/9257132541.pdf
    • https://cdn.shopify.com/s/files/1/0461/3180/6376/files/how_to_say_bye_in_german_informal.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lekefokatonerosabiwifeva.pdf
    • https://cdn.shopify.com/s/files/1/0437/8394/6397/files/xeguf.pdf
    • https://cdn.shopify.com/s/files/1/0431/7901/6360/files/11729168056.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007824.bin
0e1c1fb22ca59ef7a0c4df68661e6b86dcf204dac447347b4a64e44b3efa2f5b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7824 5932 bytes
font_01_sfnt_off00008c28.bin
95e76337d6304527661fb0f12c634f6fbe1533343d3a25da7173879e6f093620		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C28 14516 bytes

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