Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec63708412e0eb6f…

MALICIOUS

PDF

42.0 KB Created: 2020-08-22 13:51:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 47159626d4081e999094de859db33e67 SHA-1: eb8d97f4b730fb7e652f40aaebd5bf5f6b9539de SHA-256: ec63708412e0eb6f01ddd109c33c76aff0d922bf3a79084499a395a65a7b07a2
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 ttraff.com. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded URLs, many hosted on cdn.shopify.com. The document body, though heavily obfuscated, contains the same malicious URL and a seemingly benign PDF filename, suggesting a lure to download a game. 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.com/pify?keyword=wargame+airland+battle+free
    • http://lisogaga.lauranaomiartisan.com/uploads/1/3/1/4/131438216/8bf67bf642.pdf
    • http://pogediw.tamara-vasquez.com/uploads/1/3/0/7/130776089/3befbb40ebea59.pdf
    • https://cdn.shopify.com/s/files/1/0431/1118/6588/files/adeptus_mechanicus_codex_vk.pdf
    • https://cdn.shopify.com/s/files/1/0428/2885/7503/files/calculator_pro_mod_apk.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/69988506189.pdf
    • https://cdn.shopify.com/s/files/1/0432/7201/1932/files/bellman_and_black.pdf
    • https://cdn.shopify.com/s/files/1/0434/1907/4712/files/oralb_smart_guide.pdf
    • https://cdn.shopify.com/s/files/1/0439/0669/5320/files/totexobit.pdf
    • https://cdn.shopify.com/s/files/1/0440/0631/0046/files/pupuwalajifinev.pdf
    • https://cdn.shopify.com/s/files/1/0431/1960/7965/files/osteria_trattato_campoformido.pdf
    • https://cdn.shopify.com/s/files/1/0446/1376/3235/files/english_syntactic_structures_aarts.pdf
    • https://cdn.shopify.com/s/files/1/0431/0269/9681/files/94788624226.pdf
    • https://cdn.shopify.com/s/files/1/0431/6548/3168/files/zumuwutobufexasufatol.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_off00006513.bin
fae5128d28904f55ee69b58b0233a664cb5144c2db6a960dd6dc6dabb3886b3a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6513 5204 bytes
font_01_sfnt_off000076b6.bin
b42f1fb333f96bfd5579d2766587b646b6d92f17419cba37c46eb725d2f6cd7b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76B6 10892 bytes

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