Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d51b401e09c46a9…

MALICIOUS

PDF

32.0 KB Created: 2020-08-30 02:48:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 832b58332cf5c33ae26b8ec01e32faff SHA-1: 01df29ff920fe5d4e549a1675aec524b539d3ea6 SHA-256: 2d51b401e09c46a9e04d26145919035bae30ebbd3cd52a75f3d70a415dd00e5d
120 Risk Score

Malware Insights

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

The PDF file contains numerous links, with one critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains text related to an 'Airman pds185s owners manual' and the malicious URL. This suggests a phishing attempt to lure users to a malicious site under the guise of providing a manual. No scripts were extracted, limiting the analysis of further malicious behavior.

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/wix?keyword=airman+pds185s+owners+manual
    • https://cdn.shopify.com/s/files/1/0431/0587/8170/files/33174663318.pdf
    • https://cdn.shopify.com/s/files/1/0438/6832/4005/files/lotumepudotitobexubujon.pdf
    • https://cdn.shopify.com/s/files/1/0431/2278/6466/files/virtual_ethnography_hine.pdf
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/96945409154.pdf
    • https://static.usrfiles.com/ugd/b8c837_25ce794ea87541828f2e8ce8877a5f8f.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_79e73b47e35c40818182f0849cca6aae.pdf
    • https://static.usrfiles.com/ugd/67e251_6dda85b7d9af4f35b8144fc98770183f.pdf
    • https://cdn.shopify.com/s/files/1/0430/0577/1939/files/31524436247.pdf
    • https://cdn.shopify.com/s/files/1/0437/7539/3946/files/39818464740.pdf
    • https://cdn.shopify.com/s/files/1/0429/6556/5589/files/78784053544.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_off00004050.bin
4320fe4696f0f0eb84bf2ec4900d52356e828f35c4c078c5463ca5e760df5fc7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4050 5556 bytes
font_01_sfnt_off00005326.bin
eef3e0389c2d6dd5304cade3dabb49cc778dda8be6c77c83343c4c854342bf15		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5326 9612 bytes

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