Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc001b3d0a099d94…

MALICIOUS

PDF

55.2 KB Created: 2020-08-11 21:50:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ff1e70a8bddccad2d9b7cc0dcf9978c3 SHA-1: 15783fe082118d879ee08a44eb07291ad80a6651 SHA-256: cc001b3d0a099d94142b7cf2e174ab335c1d193de94c45010da9cc142b397f1b
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.cc/pify?keyword=gaspard+de+la+nuit+piano+pdf'. This indicates the document's primary purpose is to redirect the user to malicious infrastructure. The presence of numerous other PDF links, many hosted on Shopify, suggests a link farm or SEO poisoning tactic to increase visibility. No scripts were extracted, but the document body contains obfuscated text and the malicious URL, reinforcing the redirection attack pattern.

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=gaspard+de+la+nuit+piano+pdf
    • http://mikik.eunoiatherapy.com/uploads/1/3/0/7/130738799/7dc94c7e93c.pdf
    • http://files.deliveranceforchristians.com/uploads/1/3/2/8/132814935/xovimifedozuj.pdf
    • http://tabero.zhishuaizhang.com/uploads/1/3/1/6/131606289/bowilasugu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4691/0624/files/87981356796.pdf
    • https://cdn.shopify.com/s/files/1/0428/1312/8863/files/najakododivexugubijunuza.pdf
    • https://cdn.shopify.com/s/files/1/0435/5381/6728/files/7685521875.pdf
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/36880595174.pdf
    • https://cdn.shopify.com/s/files/1/0431/6112/5015/files/61776080047.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/volobufepafolosovi.pdf
    • https://cdn.shopify.com/s/files/1/0433/1926/3397/files/20023227278.pdf
    • https://cdn.shopify.com/s/files/1/0435/2465/3224/files/13242439909.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/nejokupepe.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_off000080e4.bin
032f349733a5826042a7377fc084dbb00709c71d5e864838ff34661ae9243eda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80E4 5064 bytes
font_01_sfnt_off00009236.bin
d15e4906000cc81f22968ac34d880a13fa7f7936bddd6eda5d4272a67ab1cf3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9236 12228 bytes
font_02_sfnt_off0000b8f6.bin
15a68420f1c377824b8c1fd571ac7c30556db1b4bc05006bf44ec3f6c6c83208		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB8F6 16120 bytes

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