Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9a4e47645aaa308…

MALICIOUS

PDF

36.1 KB Created: 2020-09-01 00:06:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6180841075cc2a22bcc27f383519067a SHA-1: 2489a91e3d190dfeaca2f3db911107656533ff8f SHA-256: f9a4e47645aaa308cf10f21873431b0021bfa5707873c2596405a8d64a6e67cb
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of the primary links, https://ttraff.cc/wix?keyword=bichadna+bhi+zaroori+tha+video, is flagged as a malicious redirector. The document body, though heavily obfuscated, contains this URL and other links, suggesting a social engineering attempt to drive traffic to malicious infrastructure.

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/wix?keyword=bichadna+bhi+zaroori+tha+video
    • https://cdn.shopify.com/s/files/1/0431/3156/8277/files/criminal_movie_songs_ringtones.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/jewaxepolirabosumasedud.pdf
    • https://cdn.shopify.com/s/files/1/0430/2559/6573/files/88069259853.pdf
    • https://cdn.shopify.com/s/files/1/0435/0597/5462/files/fetuj.pdf
    • https://cdn.shopify.com/s/files/1/0430/3798/2869/files/lezujidimot.pdf
    • https://static.usrfiles.com/ugd/455f95_a44c1ab078b4427e9d079c218e90e33c.pdf
    • https://static.usrfiles.com/ugd/9ff9b8_71e726554c104a26bc3278d3b1a94e61.pdf
    • https://static.usrfiles.com/ugd/ae059d_499a3baf59564cc4938679dea591b7e5.pdf
    • https://static.usrfiles.com/ugd/b11f6d_bb7eae4509304e1fa191d36fc0d11b39.pdf
    • https://static.usrfiles.com/ugd/6c032c_2c43df0a60e34e7494251bd36263daf3.pdf
    • https://static.usrfiles.com/ugd/6846fe_c946777820a241a7bb3d1fdf2f0b9dc3.pdf
    • https://cdn.shopify.com/s/files/1/0431/8694/6212/files/sixodidifojovemopobe.pdf
    • https://cdn.shopify.com/s/files/1/0431/2875/0241/files/fukexolu.pdf
    • https://cdn.shopify.com/s/files/1/0440/9756/8920/files/arabic_urdu_dictionary_free_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/5590/6967/files/1097849453.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_off00004e62.bin
520ba89e4babc8b4ae52038a6ee41268e262894a58e4034c7353bcd31e14fe12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E62 5116 bytes
font_01_sfnt_off00005fd0.bin
ea2dba0dcf5c3a2ece1e4b5bc4a3b75dda2891dbca1b1f6aa058f36da9de50b5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD0 10344 bytes

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