Malicious PDF — malware analysis report

Static analysis result for SHA-256 e66ec1e89c58d31e…

MALICIOUS

PDF

43.0 KB Created: 2020-08-14 13:19:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9095e84a44f67c570b48d17655ad8f5d SHA-1: 0b832a2c656ada75fadb28fcc21683a794c7d583 SHA-256: e66ec1e89c58d31eddeab9459fc348e38189f4ee8e74573c424b7007cb9efb72
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1059.001 Command and Scripting Interpreter: PowerShell

The PDF contains a heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=i+am+alone+but+happy+images'. Additionally, it exhibits characteristics of a PDF link farm, embedding numerous external links, with the first identified as 'https://cdn.shopify.com/s/files/1/0430/1219/4463/files/birthday_wishes_video_song_for_brother.pdf'. The document body also contains these URLs, suggesting an attempt to lure users to malicious or deceptive content.

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=i+am+alone+but+happy+images
    • http://files.lkoc.org/uploads/1/3/1/3/131383497/bofepowoj.pdf
    • http://files.mayacorrigan.com/uploads/1/3/2/7/132740362/2127352.pdf
    • http://files.carsonsportsprints.com/uploads/1/3/0/8/130874029/09a1c314f7.pdf
    • http://pipumixij.mohamedjabaly.com/uploads/1/3/2/6/132681670/nijexo_jajasasukira.pdf
    • http://nezejapuw.albertaorff.ca/uploads/1/3/1/6/131607733/195ae44a35492b3.pdf
    • https://cdn.shopify.com/s/files/1/0430/1219/4463/files/birthday_wishes_video_song_for_brother.pdf
    • https://cdn.shopify.com/s/files/1/0427/5827/5238/files/83561424228.pdf
    • https://cdn.shopify.com/s/files/1/0435/8435/6507/files/78906831875.pdf
    • https://cdn.shopify.com/s/files/1/0432/3675/3570/files/pdf_to_word_online_free_no_email.pdf
    • https://cdn.shopify.com/s/files/1/0434/7166/7360/files/25870992638.pdf
    • https://cdn.shopify.com/s/files/1/0431/0047/1456/files/evidence_based_design.pdf
    • https://cdn.shopify.com/s/files/1/0437/5419/3057/files/81058544979.pdf
    • https://cdn.shopify.com/s/files/1/0430/9857/0909/files/kopebovuv.pdf
    • https://cdn.shopify.com/s/files/1/0438/4597/6221/files/beekeeping_books.pdf
    • https://cdn.shopify.com/s/files/1/0435/8792/8223/files/apexification_procedure.pdf
    • https://cdn.shopify.com/s/files/1/0427/8213/0332/files/vuwunesu.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_off000053f0.bin
823ec0dbb37233c6496431e1af3819897464dfe90eb9759299f4cdc190b0c54b
pdf-font-stream PDF embedded font (sfnt) at offset 0x53F0 5316 bytes
font_01_sfnt_off000065dc.bin
217c02420ce1a1fc58867afedfc6ac9eab60382a18ca6b82dc62d799db979978
pdf-font-stream PDF embedded font (sfnt) at offset 0x65DC 10672 bytes
font_02_sfnt_off0000895d.bin
4b52fd5da643d9c08cc0a86f773b2f024e3274f3f861dfcac100db1ef433cf06
pdf-font-stream PDF embedded font (sfnt) at offset 0x895D 16164 bytes