Malicious PDF — malware analysis report

Static analysis result for SHA-256 d85526d417af3fa3…

MALICIOUS

PDF

39.5 KB Created: 2020-08-23 05:29:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: abe9969f58bc8134cd1302d779c29963 SHA-1: 10faa921950d05a0cac5a7b337902fb52e3b0139 SHA-256: d85526d417af3fa3649040ea0892a7af5fadd2022ad5691ee430057a326399dd
150 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.com, which is disguised as a business plan. This indicates a phishing or malware distribution attempt. The document body, though heavily obfuscated, contains the same lure text and URLs. The presence of numerous external PDF links, many pointing to Shopify domains, suggests a link farm used to obscure the malicious redirector.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=glaze+new+business+plan+2019+pdf
    • http://lekanil.rockwoodstoneunitedchurches.com/uploads/1/3/2/6/132683003/5000109.pdf
    • http://resabek.fatpunkproductions.com/uploads/1/3/2/6/132695213/9044978.pdf
    • http://files.iinsitu.com/uploads/1/3/1/3/131383319/65a35b813b.pdf
    • http://files.bighammershields.com/uploads/1/3/1/3/131398252/zawigixagefozusaraki.pdf
    • http://files.shineonpro.com/uploads/1/3/0/7/130775055/9bbc3f9e4c3a216.pdf
    • https://cdn.shopify.com/s/files/1/0431/3474/6790/files/kunipuwexelajozotonez.pdf
    • https://cdn.shopify.com/s/files/1/0430/2402/3715/files/zuvafujeleri.pdf
    • https://cdn.shopify.com/s/files/1/0429/7470/7868/files/mezoporigununukupagisuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/guwupola.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/65621046881.pdf
    • https://cdn.shopify.com/s/files/1/0430/4296/3613/files/root_kindle_fire_1st_generation.pdf
    • https://cdn.shopify.com/s/files/1/0431/8094/9658/files/tunavukote.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_off00004fd7.bin
d64fbb4101df61c7b2872d8c80c7620da2df72958600826134fd8e537c549f45		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4FD7 5732 bytes
font_01_sfnt_off0000638f.bin
df4b6777e9ba999a142380e4f17ec335385ed432b3b71223fe4be95f4cc7f49b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x638F 13788 bytes

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