Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb08faf6d06aac99…

MALICIOUS

PDF

39.2 KB Created: 2020-08-10 23:59:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6457368383fdf2c98ff636d376738f94 SHA-1: 953bf8cb277d64a2b2af23ac2bb62223ddeb40ef SHA-256: bb08faf6d06aac99bdeabd547b5ccced69e95345accdd9b6d33fc3e0a2f33e9f
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, https://ttraff.cc/pify?keyword=analytic+geometry+and+calculus+pdf+download, is designed to redirect users to potentially harmful content. The document also contains a large number of embedded URLs, many pointing to Shopify, suggesting an attempt to disguise malicious links within a seemingly legitimate structure. The primary attack pattern involves social engineering through a fake download lure.

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=analytic+geometry+and+calculus+pdf+download
    • http://files.magentawilde.com/uploads/1/3/1/3/131382470/lunepixazoworo.pdf
    • http://files.plantingseedscompany.ca/uploads/1/3/1/4/131482886/8003161.pdf
    • http://files.teamspiritcheerleaders.com/uploads/1/3/1/4/131482823/zomitivuk_vumumum_sefew_bexirusodivo.pdf
    • http://files.sbwga.com/uploads/1/3/0/7/130740069/zemevamadevufex.pdf
    • https://cdn.shopify.com/s/files/1/0431/0758/2106/files/20566145697.pdf
    • https://cdn.shopify.com/s/files/1/0432/8043/3302/files/52124986265.pdf
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/dutaxo.pdf
    • https://cdn.shopify.com/s/files/1/0430/1216/1685/files/36708225911.pdf
    • https://cdn.shopify.com/s/files/1/0428/8905/2316/files/gijajekivejakobavexiti.pdf
    • https://cdn.shopify.com/s/files/1/0434/8670/7876/files/witigoxox.pdf
    • https://cdn.shopify.com/s/files/1/0430/6170/6903/files/waiter_resume_examples.pdf
    • https://cdn.shopify.com/s/files/1/0434/1334/0312/files/dufokakovoviriru.pdf
    • https://cdn.shopify.com/s/files/1/0431/5981/4306/files/carbohydrate_in_organic_chemistry.pdf
    • https://cdn.shopify.com/s/files/1/0431/5804/4827/files/21332360344.pdf
    • https://cdn.shopify.com/s/files/1/0436/7872/8345/files/gatimeromepevu.pdf
    • https://cdn.shopify.com/s/files/1/0436/0637/6611/files/troy_bilt_190cc_6._75_lawn_mower.pdf
    • https://cdn.shopify.com/s/files/1/0435/9382/6463/files/xavivizuwox.pdf
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/butudunokamotejusovifepo.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_off00005995.bin
e1a6ffb71797fb1f5e79452214bf9d65964e6cddac251e34d0d4a30d38233324		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5995 5660 bytes
font_01_sfnt_off00006ccc.bin
c6e4a1c3dd105808b5899114f7e8366fbe62b18b08dd92143b4d31a519b1ed21		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CCC 10128 bytes

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