Malicious PDF — malware analysis report

Static analysis result for SHA-256 34ccce3572cbbd87…

MALICIOUS

PDF

42.8 KB Created: 2020-08-21 14:03:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9ccbc39c27c0fef090d9821fc5116635 SHA-1: 743fdfb4b6dbadbaad0e0048be8986cd3df9c4e7 SHA-256: 34ccce3572cbbd8705dbc280a4960bf8472b1cc916612dcba6dbaf7dde17581a
150 Risk Score

Malware Insights

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

The PDF contains a prominent link disguised as a software download for 'Blender software with crack'. This link redirects to a known malicious redirector, ttraff.com, indicating a phishing or malware distribution attempt. The PDF also exhibits characteristics of a link farm, likely to improve search engine ranking for malicious content.

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.com/pify?keyword=blender+software++with+crack
    • http://files.jamestanksley.com/uploads/1/3/1/8/131858791/5801662.pdf
    • http://files.aaroncalafato.net/uploads/1/3/0/7/130739648/1520527.pdf
    • https://cdn.shopify.com/s/files/1/0433/6232/0536/files/whirlpool_duet_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/1916/5086/files/bosifovapope.pdf
    • https://cdn.shopify.com/s/files/1/0434/1687/9271/files/51896059988.pdf
    • https://cdn.shopify.com/s/files/1/0438/3378/6525/files/osaka_sightseeing_japan_guide.pdf
    • https://cdn.shopify.com/s/files/1/0432/3927/6699/files/49710786379.pdf
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/68686444536.pdf
    • https://cdn.shopify.com/s/files/1/0438/4745/0789/files/anand_kumar_super_30_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/4016/2467/files/jibibu.pdf
    • https://cdn.shopify.com/s/files/1/0433/0127/3760/files/53666269745.pdf
    • https://cdn.shopify.com/s/files/1/0439/2547/1400/files/kutogumo.pdf
    • https://cdn.shopify.com/s/files/1/0438/3404/8669/files/74673017842.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/welilavuruwad.pdf
    • https://cdn.shopify.com/s/files/1/0431/2635/8173/files/apqp_process_flow.pdf
    • https://cdn.shopify.com/s/files/1/0431/5830/6965/files/mamuta.pdf
    • https://cdn.shopify.com/s/files/1/0441/2401/2696/files/c_tree_data_structure.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_off00006834.bin
5467fd3002dd4ce5bc6e155292011ac08e117152fd8e1e81bbd20ba4d7da9eda		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6834 5316 bytes
font_01_sfnt_off00007a54.bin
cbea0a31eb4b283f7fb9d3f4734774aa80db1c6ff629d609e74d8aa15deccb7e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7A54 10540 bytes

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