Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e7a898fcd713225…

MALICIOUS

PDF

40.5 KB Created: 2020-09-02 15:58:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fe9a7fc5e167e17119e27ab267ea69b5 SHA-1: 8ded0642560a52c1ad808181170e8f85a7fc2cf8 SHA-256: 2e7a898fcd713225b1b5804d5ad2ada443f36ab591254b3cd0b01c4a5dd09100
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.me/pify?keyword=android+9+wps+wifi'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily obfuscated, contains the same suspicious URL. This suggests the PDF is designed to redirect users to a malicious site, likely for phishing or malware distribution.

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.me/pify?keyword=android+9+wps+wifi
    • https://cdn.shopify.com/s/files/1/0432/1122/7300/files/88723042148.pdf
    • https://cdn.shopify.com/s/files/1/0436/2112/2211/files/aviano_bold_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0437/8551/9255/files/44170647111.pdf
    • https://cdn.shopify.com/s/files/1/0433/7709/8910/files/xazid.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/catia_v5_book.pdf
    • https://cdn.shopify.com/s/files/1/0432/6670/3516/files/adidas_platform_sneakers_stan_smith.pdf
    • https://cdn.shopify.com/s/files/1/0437/5596/2522/files/51891695855.pdf
    • https://cdn.shopify.com/s/files/1/0448/0778/2557/files/archaeology_of_salt_download.pdf
    • https://static.usrfiles.com/ugd/384ea4_d189d1dd46a744f9953c2dffc1fd777b.pdf
    • https://static.usrfiles.com/ugd/6c8f37_d5090f7d18d64329abfb9f19bdfab326.pdf
    • https://cdn.shopify.com/s/files/1/0433/4364/2773/files/xonodikesiwolirakaner.pdf
    • https://cdn.shopify.com/s/files/1/0437/6264/7191/files/59924365142.pdf
    • https://cdn.shopify.com/s/files/1/0438/2621/7120/files/blender_texturing_tutorial.pdf
    • https://cdn.shopify.com/s/files/1/0434/4024/2840/files/lowes_ogdensburg_ny.pdf
    • https://cdn.shopify.com/s/files/1/0434/3735/9271/files/sustainable_agriculture_agrimoon.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_off00006081.bin
a232ec673e41f572500fe3ca3205f0ee3b8e2739cc8c05af754637038c51f909		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 5028 bytes
font_01_sfnt_off000071c3.bin
fcff4e11c3ae49ee03bfe7886092a796edecee9046a142f7a3e5593fe38f57e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71C3 10420 bytes

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