Malicious PDF — malware analysis report

Static analysis result for SHA-256 d718333adbdb40f6…

MALICIOUS

PDF

44.2 KB Created: 2020-08-03 06:42:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8843ab40c2a820d63163de969a8d6246 SHA-1: 3a2c326005ddef2f39de3593275d67914b08e2c2 SHA-256: d718333adbdb40f6d8c4a4b01cdfa5e12b0c88c51cd98f9e26585d1888257dd1
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with a critical heuristic firing indicating a link to a known malicious redirector. The document body is heavily obfuscated, but the presence of the 'gta 5 props' keyword and the redirector URL suggest a lure for potentially malicious content. The numerous links hosted on cdn.shopify.com and other file-hosting services likely serve to distribute the payload or obscure its origin.

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=gta+5+props
    • http://files.amazingamericanstv.com/uploads/1/3/0/7/130739886/2760298.pdf
    • http://files.rocksolidskilltraining.com/uploads/1/3/1/8/131856034/ac2e10ff.pdf
    • http://files.indiracreative.com/uploads/1/3/1/3/131379306/4196546.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98774508290.pdf
    • https://cdn.shopify.com/s/files/1/0438/3434/3574/files/camarada_arenas_pdf.pdf
    • https://cdn.shopify.com/s/files/1/0428/2174/6847/files/19642305074.pdf
    • https://cdn.shopify.com/s/files/1/0428/9721/1551/files/mugulimanudewuxuxap.pdf
    • https://cdn.shopify.com/s/files/1/0433/1808/3742/files/xosajelakisavamedise.pdf
    • https://cdn.shopify.com/s/files/1/0429/1916/6105/files/3734040922.pdf
    • https://cdn.shopify.com/s/files/1/0436/9691/4586/files/3744796770.pdf
    • https://cdn.shopify.com/s/files/1/0429/8991/2218/files/94824763796.pdf
    • https://cdn.shopify.com/s/files/1/0434/5525/0598/files/nimaziwudivupekubagolijem.pdf
    • https://cdn.shopify.com/s/files/1/0434/8854/2872/files/70540104320.pdf
    • https://cdn.shopify.com/s/files/1/0433/4603/4846/files/zabel.pdf
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/83461878762.pdf
    • https://cdn.shopify.com/s/files/1/0436/7941/6473/files/python_convert_bytes_to_string.pdf
    • https://cdn.shopify.com/s/files/1/0433/0219/1269/files/dnd_5e_paladin_oath_of_vengeance.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_off00006e6f.bin
91615501ccbbf55eff9997893b289cdc473224b0738aab552acf7938c017ac4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E6F 4936 bytes
font_01_sfnt_off00007f4d.bin
3c765e301760cf212bacd681d44dba31e95f0791f39f832349b0712c83e96185		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F4D 10700 bytes

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