Malicious PDF — malware analysis report

Static analysis result for SHA-256 e343a450fa19effe…

MALICIOUS

PDF

39.5 KB Created: 2020-08-03 22:41:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 53d6d94f82ec92f297cf5b4594bb471d SHA-1: 0917588df7673759e97248133de6e7c62827c0da SHA-256: e343a450fa19effee5e28fc98b6ff471b002a442cbf2145e31160587ef9a1aa8
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.cc/pify?keyword=arduino+cookbook+francais+pdf'. This indicates a phishing or scam attempt where the user is tricked into clicking a link that leads to malicious content. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting a link farm or SEO manipulation tactic to distribute the malicious link. 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=arduino+cookbook+francais+pdf
    • http://files.tcislibrary.com/uploads/1/3/1/3/131383842/zagude_tewojus_xomekefam_gorefanonugawul.pdf
    • http://files.portagecentralexams.com/uploads/1/3/1/3/131383664/af0779c0696b.pdf
    • http://files.betapichaptertx.com/uploads/1/3/1/0/131070247/5385819.pdf
    • https://cdn.shopify.com/s/files/1/0437/7716/3426/files/mawesekopopediwumuwivigeb.pdf
    • https://cdn.shopify.com/s/files/1/0430/1737/1801/files/wenupure.pdf
    • https://cdn.shopify.com/s/files/1/0434/6239/4008/files/kirisotojomanegemu.pdf
    • https://cdn.shopify.com/s/files/1/0437/7152/7319/files/fufifoxomapon.pdf
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/vuranufimebemifepi.pdf
    • https://cdn.shopify.com/s/files/1/0429/2640/7833/files/84140266845.pdf
    • https://cdn.shopify.com/s/files/1/0431/0401/0389/files/blacksmith_level_guide.pdf
    • https://cdn.shopify.com/s/files/1/0435/8579/8301/files/dizovojinasiwev.pdf
    • https://cdn.shopify.com/s/files/1/0435/7976/8995/files/jeritigigisuvubamukexoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/5019/6392/files/7127303993.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://cdn.shopify.com/s/files/1/0437/7001/9998/files/29472010295.pdf
    • https://cdn.shopify.com/s/files/1/0435/2537/4103/files/adverb_worksheets_for_grade_5.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_off00005b29.bin
91a5cf68970e93fd42b523c6e7a0d36d31a1c5982d49833a6303aaa622e8846d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B29 5308 bytes
font_01_sfnt_off00006d45.bin
1648a8384e07aa25d6828976dca2e1751721632024776a0aa5292fc296ab0d3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D45 10380 bytes

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