Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e46a45cdb7636f4…

MALICIOUS

PDF

46.2 KB Created: 2020-08-25 07:57:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 92b3ab1f36b35ca2225c1fbbeae69905 SHA-1: 8c88146bb34336ffd76dc5fc6dcd18e188a980f8 SHA-256: 9e46a45cdb7636f463c6b03c03e4d436f6e27faa744c05d0a6d506335411f3f8
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.cc, which is used to obscure the final destination. The document body, though heavily obfuscated, contains the same URL and references a game cheat, suggesting a lure for users seeking illicit content. The presence of a large number of external PDF links, many hosted on Shopify, indicates a link farm strategy, likely for SEO poisoning or to distribute further payloads.

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=robbery+bob+2++unlimited+money
    • http://files.wishuponapony.com/uploads/1/3/0/9/130969796/92affc0.pdf
    • http://vuvames.cassandrakgolden.com/uploads/1/3/1/3/131378779/9db603535ccec8.pdf
    • https://cdn.shopify.com/s/files/1/0437/8741/9806/files/zadijatigoziruk.pdf
    • https://cdn.shopify.com/s/files/1/0430/8343/2096/files/10581223940.pdf
    • https://cdn.shopify.com/s/files/1/0427/5778/3718/files/whatsapp_status_video_tamil_hd.pdf
    • https://cdn.shopify.com/s/files/1/0432/7663/2214/files/chrome_os_android_9.pdf
    • https://cdn.shopify.com/s/files/1/0430/9050/9973/files/cambridge_igcse_physics_coursebook_david_sang_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/7258/5888/files/16328453613.pdf
    • https://cdn.shopify.com/s/files/1/0435/3415/5928/files/gelalimutikinojuvarojoxap.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/27247465441.pdf
    • https://cdn.shopify.com/s/files/1/0431/5276/9192/files/89756011586.pdf
    • https://cdn.shopify.com/s/files/1/0429/5596/4569/files/60380597192.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a56.bin
dc27cc6ada8178195bf1fccbbe0bf771de8fd29e5ccf1b68c6996eca2f9cf6e6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A56 4848 bytes
font_01_sfnt_off00007ab5.bin
c1ca3eead441f08c004f802358a6cfdaef01ae5fbba1cd7d12e130d83fc056e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AB5 10292 bytes
font_02_sfnt_off00009dff.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DFF 4324 bytes

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