Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2ba67520812e50e…

MALICIOUS

PDF

43.8 KB Created: 2020-08-04 14:10:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 94f2fc4f78de4b2def55c5076bce3829 SHA-1: 736215383dab8a9f4fe371b62644a4367b938f3d SHA-256: f2ba67520812e50eed9203b637f42f1d176d83708c0bae5df7bde1c8161126fa
120 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including a critical redirector link to ttraff.ru, disguised as a free study bible download. This indicates a phishing or scam attempt to redirect users to malicious infrastructure. No scripts were extracted, and the document body was heavily obfuscated, limiting further analysis of the payload.

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.ru/pify?keyword=esv+study+bible+pdf+free+download
    • http://files.jlbfitness.ca/uploads/1/3/1/3/131384573/sumag.pdf
    • http://files.ytfd19.org/uploads/1/3/2/7/132740982/fafini_fibakajogurifo_ritasonopibudaf_jeguwiboz.pdf
    • http://xegoj.leclercenterprises.com/uploads/1/3/2/7/132712109/e39a01.pdf
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/58593656011.pdf
    • https://cdn.shopify.com/s/files/1/0429/6232/1571/files/31239515745.pdf
    • https://cdn.shopify.com/s/files/1/0431/2216/3876/files/padafikojalobex.pdf
    • https://cdn.shopify.com/s/files/1/0429/6015/8873/files/83862916511.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/dijisunoxofugovunulavep.pdf
    • https://cdn.shopify.com/s/files/1/0437/0743/3125/files/97766260388.pdf
    • https://cdn.shopify.com/s/files/1/0434/2480/9122/files/d_d_5e_dominate_person.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zexula.pdf
    • https://cdn.shopify.com/s/files/1/0428/4229/2390/files/12476988032.pdf
    • https://cdn.shopify.com/s/files/1/0429/4295/5687/files/10804612491.pdf
    • https://cdn.shopify.com/s/files/1/0431/3258/4098/files/76781071030.pdf
    • https://cdn.shopify.com/s/files/1/0433/3872/7589/files/filosobinijolekebe.pdf
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/48731622389.pdf
    • https://cdn.shopify.com/s/files/1/0435/0866/2440/files/xodakakotirovusaro.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_off00006bff.bin
ab539c3c24b2c7df2e53e1e777d581dcdcde67c2b9fd3b6de90261c428035f95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BFF 5384 bytes
font_01_sfnt_off00007e74.bin
a9a35acd992091f260981219cbe1da7ad72ff6316e2e91ec19e68323a7f47f41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7E74 10368 bytes

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