Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0e5f3d2416a244d…

MALICIOUS

PDF

47.8 KB Created: 2020-08-06 15:42:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 66ca46414b47683b71acd308bf91a659 SHA-1: 7b531d5992aa449673b22d1c11bc2639b5c6a625 SHA-256: f0e5f3d2416a244d668e0d7e562ba2f5fc9610d3ed74e2f8663a195c8c5b842e
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, pointing to 'https://ttraff.cc/pify?keyword=ansys+maxwell+3d+tutorial+pdf'. This indicates the document is designed to redirect users to potentially harmful content. Additionally, the PDF exhibits characteristics of a link farm, with numerous embedded URLs, many of which are hosted on Shopify. The document body, though heavily obfuscated, contains references to the redirector URL and other PDF links, reinforcing the lure. No scripts were extracted from this sample.

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=ansys+maxwell+3d+tutorial+pdf
    • http://files.mikerossdesigner.com/uploads/1/3/0/9/130969322/lopadejupokiwik.pdf
    • http://files.michellehowelldesign.com/uploads/1/3/0/8/130813461/titawavi.pdf
    • http://files.icoped.com/uploads/1/3/0/8/130874501/6528747.pdf
    • http://files.hkcofc.com/uploads/1/3/2/6/132683111/lobojevaresale_jojolurirukekof_nunaduwarutare_rulilik.pdf
    • http://files.evollifestyle.com/uploads/1/3/1/4/131453989/3528508.pdf
    • https://cdn.shopify.com/s/files/1/0435/5024/5028/files/69619357877.pdf
    • https://cdn.shopify.com/s/files/1/0431/1223/5174/files/48193591650.pdf
    • https://cdn.shopify.com/s/files/1/0437/2417/7557/files/movugosujozel.pdf
    • https://cdn.shopify.com/s/files/1/0433/8014/6343/files/46942815660.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/xosofanozewamilepu.pdf
    • https://cdn.shopify.com/s/files/1/0431/0004/5465/files/xevusarozunere.pdf
    • https://cdn.shopify.com/s/files/1/0433/0110/9920/files/faxiwun.pdf
    • https://cdn.shopify.com/s/files/1/0437/0713/8201/files/financial_accounting_basics_in_telugu.pdf
    • https://cdn.shopify.com/s/files/1/0430/0642/7289/files/lurew.pdf
    • https://cdn.shopify.com/s/files/1/0431/0332/2269/files/36627223788.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/32150460784.pdf
    • https://cdn.shopify.com/s/files/1/0430/0659/1127/files/public_finance_in_theory_and_practice_download.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_off00007a4b.bin
cec665d01ac50a6a5f0124ded7007e02f8bf1a2c063f1aa08daea3c438197bc5
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A4B 5604 bytes
font_01_sfnt_off00008d5c.bin
8ce01afdda6c3ad775495406ed9f07167da8f98bd32a68994f8eb0f153fd9e3d
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D5C 10736 bytes