Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1427e2f6e5393e9…

MALICIOUS

PDF

48.1 KB Created: 2020-08-15 01:32:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62204235305d441da0e0b690a00de7de SHA-1: 172c88e652728651d23e0bddb7e6428e232cb0ce SHA-256: d1427e2f6e5393e9dc18f3d1338b7abfe8979f71bc17dbbc46f18357865b4c2f
120 Risk Score

Malware Insights

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

The PDF file contains a mass external link farm, with a critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=sheet+excel+online', which is likely intended to redirect the user to malicious content. The presence of numerous links to various domains, including many on cdn.shopify.com, suggests an attempt to obscure the ultimate destination or to leverage benign-looking domains for distribution.

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.cc/pify?keyword=sheet+excel+online
    • http://files.olivianicolethreads.com/uploads/1/3/0/7/130776745/sojusogu_xeribigufulov_xamilan.pdf
    • http://gikor.fitintegrity.com/uploads/1/3/0/7/130738799/893090.pdf
    • http://vuvit.mypatrioticapparel.com/uploads/1/3/0/7/130739059/3244252.pdf
    • http://files.flipztumblinggym.com/uploads/1/3/0/9/130969934/fbbbd366fe2f2bc.pdf
    • https://cdn.shopify.com/s/files/1/0429/1421/8143/files/apollonius_of_rhodes_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6961/1930/files/60183101477.pdf
    • https://cdn.shopify.com/s/files/1/0435/5037/6100/files/77286683895.pdf
    • https://cdn.shopify.com/s/files/1/0433/3748/2405/files/derisunonasubelovokipuku.pdf
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/34157643208.pdf
    • https://cdn.shopify.com/s/files/1/0438/5941/1094/files/38879289473.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/54686169254.pdf
    • https://cdn.shopify.com/s/files/1/0433/6500/7509/files/10131581183.pdf
    • https://cdn.shopify.com/s/files/1/0431/4297/1553/files/nekeveluzaroxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/degajamuminisat.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6825/files/delupodo.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005f36.bin
0ba2b23e1cb800c2ad3aae6395472f4d0c17ce0c56ad05f2045cad5fcdf0389d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F36 4364 bytes
font_01_sfnt_off00006df5.bin
86c01160e4d51f2cf341ccabde2acb3501e92daaea6fddcab2f37f9ad6415e97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DF5 9944 bytes
font_02_sfnt_off0000902c.bin
18f56b7fae04e07bc119a468ad323bdda099da77b0772854d1c47cc1f39b9f3b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x902C 16144 bytes
font_03_sfnt_off0000a52c.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA52C 4324 bytes

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