Malicious PDF — malware analysis report

Static analysis result for SHA-256 599558f4b0fd7129…

MALICIOUS

PDF

36.2 KB Created: 2020-07-08 20:39:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5707ffb5a70ac42a15b99ce562e6caed SHA-1: d9901e1f91f662340415ba242cbd5c5ffaf0286e SHA-256: 599558f4b0fd7129f1f63cfb46e53aa352862f90863a9e257d7b60f1d969537a
120 Risk Score

Malware Insights

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

The PDF contains a deceptive lure related to file conversion, which is a common tactic for phishing or malware delivery. It embeds numerous links, including one pointing to a known malicious redirector at 'ttraff.cc'. The heuristic firings confirm the presence of malicious redirector links and a large number of external PDF links, indicating a link farm designed to distribute malicious content. No scripts were extracted, but the primary attack vector appears to be social engineering via deceptive content and malicious URLs.

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/wb?keyword=convert%20pdf%20to%20word%20large%20files%20online%20free
    • http://files.divinesoulenergy.com/uploads/1/3/0/9/130969819/d55ccdadbe3c.pdf
    • http://files.mdt-agilityability.com/uploads/1/3/0/8/130813646/d8e08e4b4ad9.pdf
    • http://files.goodstuffprimaryresources.com/uploads/1/3/2/6/132681204/lamumolop.pdf
    • http://files.trebor-ts.com/uploads/1/3/1/8/131871690/4fa93.pdf
    • http://files.magiqatlas.com/uploads/1/3/0/8/130814513/zivatemurijupizowigi.pdf
    • http://files.ewoutgroen.com/uploads/1/3/1/4/131454158/3307d272314a.pdf
    • https://maturixox.files.wordpress.com/2020/06/jipudefawadunixabemize.pdf
    • https://nilibijo.files.wordpress.com/2020/06/dezukepilevarananezu.pdf
    • https://povodijagez.files.wordpress.com/2020/06/34119486216.pdf
    • https://gijifibu.files.wordpress.com/2020/06/9235910010.pdf
    • https://mawumobu.files.wordpress.com/2020/06/28864699234.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/lomapatigusobotatijizu.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tozonolemudafolafoxi.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/69440205977.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/65069223210.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/90379225571.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_off00005115.bin
a571f0af61608f1e215d9ab1b67ea589a75e0739181594301e72b0ff3c851615		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5115 5172 bytes
font_01_sfnt_off000062d2.bin
fa6f11cb9d7a74d6a776622b11b90ade840d35ba4f15e7822c05bed1c9d5b619		 pdf-font-stream PDF embedded font (sfnt) at offset 0x62D2 9612 bytes

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