Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e1e9151687061ae…

MALICIOUS

PDF

46.6 KB Created: 2020-07-30 12:11:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ade62e648d54e640a1d95beb0336009 SHA-1: 8c67e4a70184bceebd68e5576b1d30ebd05f06b2 SHA-256: 8e1e9151687061ae7e14498ea46009548b892d77a7e8e34f0ee4d69fa8fca011
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with one identified as a malicious redirector. The document body text, though heavily obfuscated, suggests a lure related to a 'company portfolio design PDF'. The primary malicious IOC is the redirector URL, which likely leads to further malicious content or phishing pages.

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=company+portfolio+design+pdf
    • http://files.redroostergrill.com/uploads/1/3/1/4/131406762/59e6a4578591d.pdf
    • http://files.stephaniepresently.com/uploads/1/3/1/1/131163836/4670720.pdf
    • http://files.newriverartandfiber.com/uploads/1/3/1/4/131453215/425874.pdf
    • http://files.sjcacademy.com/uploads/1/3/0/8/130814390/1049087.pdf
    • https://cdn.shopify.com/s/files/1/0435/5863/3627/files/28008364044.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/bobidaxida.pdf
    • https://cdn.shopify.com/s/files/1/0431/7184/0161/files/45858516704.pdf
    • https://cdn.shopify.com/s/files/1/0436/2128/6050/files/dubor.pdf
    • https://cdn.shopify.com/s/files/1/0430/9044/4445/files/gikigeleriwexe.pdf
    • https://cdn.shopify.com/s/files/1/0431/5542/3383/files/tuwon.pdf
    • https://cdn.shopify.com/s/files/1/0431/2409/7191/files/suselodulakugiwijemotazo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5951/9387/files/lopamowifan.pdf
    • https://cdn.shopify.com/s/files/1/0427/8606/2495/files/24753981427.pdf
    • https://cdn.shopify.com/s/files/1/0434/6137/8212/files/163869107.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/8402105605.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6887/files/tikorako.pdf
    • https://cdn.shopify.com/s/files/1/0438/7235/4459/files/sutasoj.pdf
    • https://cdn.shopify.com/s/files/1/0433/2650/5118/files/42117564577.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/
    • https://cdn.shopify.com/s/files/1/0430/9044/4445

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000794a.bin
095fd649ae683b872fb4da198e7f13aa8e7a00550c411dc56199bd66e286015a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x794A 5276 bytes
font_01_sfnt_off00008b22.bin
ed8e873ee22e7441540d3899eb783a200eedf390b1d30926c46217c43a3a0a2c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B22 9944 bytes

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