Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed67aa8354e8b3de…

MALICIOUS

PDF

48.6 KB Created: 2020-07-29 18:15:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c37d5194d2e12960a4c22ce062aa2504 SHA-1: 75faa5e86a757238d2d9e6b30c99abbbe0b397a8 SHA-256: ed67aa8354e8b3de909edc399e12503015fb89b657dbee95896c60223a03b810
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF file contains numerous embedded links, with a critical heuristic firing indicating it's a malicious redirector. The primary malicious URL identified is ttraff.cc, which is likely used to redirect users to further malicious content or phishing pages. The document body is heavily obfuscated, but the presence of 'Networking protocols pdf' suggests a lure to entice users to click the malicious links. No scripts were extracted, limiting the analysis of direct execution capabilities.

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.cc/pify?keyword=networking+protocols+pdf
    • http://files.suppressivefire.net/uploads/1/3/0/7/130776619/wedimewej.pdf
    • http://files.virtualqe.com/uploads/1/3/2/7/132740377/0195c.pdf
    • http://files.fbcgreendale.com/uploads/1/3/1/4/131408170/dabesejimisixe.pdf
    • https://cdn.shopify.com/s/files/1/0440/0028/0734/files/91167535635.pdf
    • https://cdn.shopify.com/s/files/1/0438/8516/6760/files/sexerufigitusotutenepaxis.pdf
    • https://cdn.shopify.com/s/files/1/0430/9444/2137/files/48354949434.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/76640573288.pdf
    • https://cdn.shopify.com/s/files/1/0431/8996/0865/files/dijisunoxofugovunulavep.pdf
    • https://cdn.shopify.com/s/files/1/0439/1701/7243/files/madatomugezebesejore.pdf
    • https://cdn.shopify.com/s/files/1/0429/1615/1455/files/komigawoniridomaviveda.pdf
    • https://cdn.shopify.com/s/files/1/0432/2807/0052/files/1275660087.pdf
    • https://cdn.shopify.com/s/files/1/0437/5307/8933/files/3415339821.pdf
    • https://cdn.shopify.com/s/files/1/0434/5446/4165/files/41837976976.pdf
    • https://cdn.shopify.com/s/files/1/0432/7469/8912/files/kavaxekelozolibixije.pdf
    • https://cdn.shopify.com/s/files/1/0440/0034/6270/files/wawekudoguzazak.pdf
    • https://cdn.shopify.com/s/files/1/0431/0722/1670/files/gobegulerolefanukiro.pdf
    • https://cdn.shopify.com/s/files/1/0429/3450/1535/files/5486209503.pdf
    • https://cdn.shopify.com/s/files/1/0432/5058/1662/files/lanewujuzotupodudimegozo.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_off0000816b.bin
133b79e8e339331647c102d95be4b9626e7316cdcfc47aac4678ee8c4ffa14d6
pdf-font-stream PDF embedded font (sfnt) at offset 0x816B 5028 bytes
font_01_sfnt_off000092b7.bin
5dd65971c8e0352cd24f09b9bbd85bb539572d00e2be0a899a79401f333563d4
pdf-font-stream PDF embedded font (sfnt) at offset 0x92B7 9964 bytes