Malicious PDF — malware analysis report

Static analysis result for SHA-256 50b32aa7b384d2e7…

MALICIOUS

PDF

39.7 KB Created: 2020-08-05 05:28:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe7fbb9f807b2da46e1bb461fd108357 SHA-1: 4e28fb8561f2718dc1cc8e769f3852e07398b9ef SHA-256: 50b32aa7b384d2e7c3b515e70285ec43381b03391056b0e3227c4d4ca8099088
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, disguised as an SBI bank exam syllabus. This indicates a social engineering lure to drive traffic to malicious infrastructure. The PDF also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic to improve search engine visibility for malicious content. No scripts were extracted, but the presence of a malicious redirector and the document's deceptive content strongly suggest a phishing or malware 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.cc/pify?keyword=sbi+bank+exam+syllabus+2020+pdf
    • http://files.ps177.com/uploads/1/3/1/3/131379111/7825439.pdf
    • http://files.htinsuranceandrealty.com/uploads/1/3/0/8/130813796/d0444625d4c.pdf
    • http://files.madelinemariebecker.com/uploads/1/3/1/4/131407214/3245187.pdf
    • http://files.wills-estates.com/uploads/1/3/0/7/130740433/mixuporede.pdf
    • https://cdn.shopify.com/s/files/1/0431/7764/0093/files/21390946668.pdf
    • https://cdn.shopify.com/s/files/1/0428/9137/8854/files/70903890381.pdf
    • https://cdn.shopify.com/s/files/1/0438/3119/7856/files/korean_learning_books.pdf
    • https://cdn.shopify.com/s/files/1/0435/8068/6497/files/30972585921.pdf
    • https://cdn.shopify.com/s/files/1/0440/0594/9590/files/xibokexojuwabuperewirogog.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/44499224288.pdf
    • https://cdn.shopify.com/s/files/1/0435/1311/8872/files/16968310610.pdf
    • https://cdn.shopify.com/s/files/1/0435/8491/3563/files/nefebavonotejot.pdf
    • https://cdn.shopify.com/s/files/1/0431/7180/7391/files/ruwafubipew.pdf
    • https://cdn.shopify.com/s/files/1/0435/7432/9507/files/ginunijagosafuzozepema.pdf
    • https://cdn.shopify.com/s/files/1/0432/9370/4356/files/9479624082.pdf
    • https://cdn.shopify.com/s/files/1/0428/2040/3356/files/raruvozabajifonale.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_off00005be8.bin
ef544c0d0b71b9501a39ee36882aa2ce48c3118d9516ae8e739e84ef7a443071		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE8 5840 bytes
font_01_sfnt_off00006fcc.bin
804a790905b55a102eefd16793e836b743875605705b4edc699e0e01dbd934c9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FCC 10088 bytes

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