Malicious PDF — malware analysis report

Static analysis result for SHA-256 383422a6b0f8a9dd…

MALICIOUS

PDF

42.6 KB Created: 2020-08-20 10:32:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d5a74a180692d3749a15b037516d8e4 SHA-1: 0307924ac0ac516a20489675b75156d89e5ac552 SHA-256: 383422a6b0f8a9dd96ee9558f43d9f41090e00636888acc05254ca3d1b5f5008
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link pointing to ttraff.com, which is also present in the document body. The document also exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The primary intent appears to be redirecting users to malicious infrastructure under the guise of a business report.

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=business+consultation+report+sample
    • http://files.adchibama.org/uploads/1/3/1/4/131437724/39a5a3893aee356.pdf
    • https://cdn.shopify.com/s/files/1/0433/8194/8567/files/65461424234.pdf
    • https://cdn.shopify.com/s/files/1/0431/0453/4692/files/lotomixunetovorikokala.pdf
    • https://cdn.shopify.com/s/files/1/0429/7038/2485/files/tripura_full_video_songs.pdf
    • https://cdn.shopify.com/s/files/1/0435/8651/9195/files/nikesikinadujiw.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/7733403646.pdf
    • https://cdn.shopify.com/s/files/1/0429/1179/3315/files/20235358327.pdf
    • https://cdn.shopify.com/s/files/1/0431/2920/8983/files/loxoxatuguwumup.pdf
    • https://cdn.shopify.com/s/files/1/0432/8787/1646/files/11650972033.pdf
    • https://cdn.shopify.com/s/files/1/0430/7435/5351/files/jupeladob.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_off00006930.bin
19713521dea3f7f5ca24673d1029abefbb11f356f9dcb0d35ee37795ed504ba3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6930 5128 bytes
font_01_sfnt_off00007a7c.bin
ec3f5b74a7c470b3cfddb01ba8f04938093fbf39f1333b13c9e2f7d320e42c9c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A7C 10304 bytes

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