Malicious PDF — malware analysis report

Static analysis result for SHA-256 8894588f9e8d0db6…

MALICIOUS

PDF

47.3 KB Created: 2020-08-12 14:11:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: f737b5976f91307e6e807ce7971927d3 SHA-1: 7d9b92ac83f5ca889d79a43023ca9e2ad53f9d05 SHA-256: 8894588f9e8d0db63151296db131a365c1b29f3af5b45eea761457f2b39e8bea
128 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically 'https://ttraff.cc/pify?keyword=ends+and+means+aldous+huxley+pdf'. Additionally, the PDF exhibits characteristics of a link farm, with numerous external links, many pointing to shopify.com domains. The document body, though heavily obfuscated, contains the same malicious URL and benign URLs, suggesting an attempt to disguise the malicious link within a larger set of links. The presence of urgency language further supports a phishing or social engineering attack vector.

Heuristics 4

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=ends+and+means+aldous+huxley+pdf
    • http://files.tzilvelis.com/uploads/1/3/0/7/130775084/eda2bfc0d3d9d5f.pdf
    • http://voligom.thetruthresource.org/uploads/1/3/2/8/132814930/b74329bba5.pdf
    • http://files.myersmindset.com/uploads/1/3/0/7/130775017/jitelufuxes.pdf
    • https://cdn.shopify.com/s/files/1/0435/9513/7187/files/cambridge_checkpoint_science_book_8.pdf
    • https://cdn.shopify.com/s/files/1/0432/4635/4594/files/rexezisovilewus.pdf
    • https://cdn.shopify.com/s/files/1/0433/7922/8837/files/pomelutogirik.pdf
    • https://cdn.shopify.com/s/files/1/0432/8413/6086/files/kirotosafuvojuku.pdf
    • https://cdn.shopify.com/s/files/1/0432/6604/8165/files/18032628532.pdf
    • https://cdn.shopify.com/s/files/1/0429/0406/0071/files/www_wimp_com.pdf
    • https://cdn.shopify.com/s/files/1/0450/0570/1284/files/the_shackled_city_download.pdf
    • https://cdn.shopify.com/s/files/1/0435/7079/0558/files/borges_l_aleph.pdf
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/ligobomugowudasekafafir.pdf
    • https://cdn.shopify.com/s/files/1/0431/8766/7103/files/demefokumapotupesuti.pdf
    • https://cdn.shopify.com/s/files/1/0434/6701/4297/files/2557369536.pdf
    • https://cdn.shopify.com/s/files/1/0436/0414/8382/files/kuluwamuwovasukome.pdf
    • https://cdn.shopify.com/s/files/1/0434/5587/3190/files/63331365826.pdf
    • https://cdn.shopify.com/s/files/1/0438/0593/3730/files/818563683.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_off00007a6e.bin
5c35befa0b1cc49dbd71e113555216fad838110f5f0990e40e85c3fe44bed39e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A6E 5312 bytes
font_01_sfnt_off00008c70.bin
2adbd00123ce51c9684798fcac8e7b0597a1b70afbb2c9a7543bbd00fb47e663
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C70 10380 bytes