Malicious PDF — malware analysis report

Static analysis result for SHA-256 b3fbc263305866d1…

MALICIOUS

PDF

34.7 KB Created: 2020-08-23 10:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cc78f4348a370ab7564436358bb8a32 SHA-1: 37fe73b21c4002e2dbbce369043ad09c2d49e473 SHA-256: b3fbc263305866d1b546bd97d61e17b9fcd1f1778228f7801e7a6f5538d9350c
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, many of which point to a link farm hosted on cdn.shopify.com. One of the primary links, https://ttraff.cc/pify?keyword=xamarin+android+get+assets+folder, is flagged as a malicious redirector. This suggests the document's purpose is to lure users into clicking these links, potentially leading to further malicious content or exploits.

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=xamarin+android+get+assets+folder
    • http://files.morehousechicago.com/uploads/1/3/0/8/130814050/2646891.pdf
    • http://zenupone.numeroo.com.au/uploads/1/3/2/6/132695569/tazanokog.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2247/files/66207743637.pdf
    • https://cdn.shopify.com/s/files/1/0428/9635/9580/files/34998333107.pdf
    • https://cdn.shopify.com/s/files/1/0431/3874/4476/files/43725978181.pdf
    • https://cdn.shopify.com/s/files/1/0434/1733/8005/files/apprendre_allemand_gratuit.pdf
    • https://cdn.shopify.com/s/files/1/0432/1817/4120/files/chauffage_central.pdf
    • https://cdn.shopify.com/s/files/1/0432/5693/8646/files/rekewufavodilujumuzorej.pdf
    • https://cdn.shopify.com/s/files/1/0429/8643/8807/files/52494230699.pdf
    • https://cdn.shopify.com/s/files/1/0439/4650/8456/files/biology_class_10_textbook_kerala_syllabus.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_off00004a49.bin
76d8230334a810baf2c880ed7127a8965bdc42d4d34b5ca4aab1d0d9e9b148ef		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4A49 5204 bytes
font_01_sfnt_off00005bdb.bin
141ec9b3e93ecc665df78d5358eb9284a4b61d05e5946d6b7b33bedd66bfa7d4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BDB 10148 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.