Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c2ca0a3fc3deffd…

MALICIOUS

PDF

71.6 KB Created: 2020-08-19 09:49:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6310a4346de886203c23f8125d9d5bc0 SHA-1: c9a8ce02f9ed11db573ee2278e8eed7a6d6b0e6c SHA-256: 3c2ca0a3fc3deffd7db4d1f322aaa0c2611623422005a47e775621ed9a55d876
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a PDF link farm. The primary malicious URL identified is 'https://ttraff.com/pify?keyword=format+bmp+adalah', which is flagged as a malicious redirector. The document body contains garbled text but also includes the same malicious URL, suggesting an attempt to lure users to a malicious site. The presence of numerous links, including those hosted on Shopify, indicates a broad distribution attempt.

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=format+bmp+adalah
    • http://nukuli.yourenglishsuccesstoday.com/uploads/1/3/1/8/131856339/jubaza.pdf
    • http://zamuzevup.bcox1.com/uploads/1/3/1/8/131871592/mafatobemutam_nalovu_petodaputebeni_rawugatuw.pdf
    • http://files.bluebonnetchapter.com/uploads/1/3/2/7/132710627/wajapirit_fivowigisidawab.pdf
    • https://cdn.shopify.com/s/files/1/0434/7576/3353/files/gulilizuxufo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4828/8934/files/autoenginuity_software_free.pdf
    • https://cdn.shopify.com/s/files/1/0433/6808/7711/files/mikezazopusudazusupulexum.pdf
    • https://cdn.shopify.com/s/files/1/0433/2768/4760/files/38214939997.pdf
    • https://cdn.shopify.com/s/files/1/0429/3486/1987/files/89757412254.pdf
    • https://cdn.shopify.com/s/files/1/0435/8999/2605/files/96730696872.pdf
    • https://cdn.shopify.com/s/files/1/0438/1078/3394/files/31246478084.pdf
    • https://cdn.shopify.com/s/files/1/0436/9504/6824/files/64503186100.pdf
    • https://cdn.shopify.com/s/files/1/0433/0664/7717/files/kulisibobosuxuludumaxujos.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_off0000be59.bin
11871f7955d65f4bfa40418875934a3b602cebb8b2416d0444a2715c843b1e35		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE59 5116 bytes
font_01_sfnt_off0000cf91.bin
846e2b616c8f03db6aac86271a875e58750ec8c10296b29b17bff8097a36a0a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xCF91 13932 bytes
font_02_sfnt_off0000fbe6.bin
5c40098632d23ab57c5056a503d18a1f4082468d0021df5d0230bce3e58a74a0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFBE6 16208 bytes

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