Malicious PDF — malware analysis report

Static analysis result for SHA-256 f594a81652d9acae…

MALICIOUS

PDF

36.6 KB Created: 2020-08-26 20:07:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6443f3d8c860700106ed49a413c8c38c SHA-1: beca28a4cf83e746986ab7d0d6e4f4565a44875e SHA-256: f594a81652d9acae68196e8f655de5b646d5e5bafad4023723d3bb1d7db4f8e1
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, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=rolling+in+the+deep+adele+mp3+downlo', is designed to lure users into downloading content. The file also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, some of which are hosted on Shopify. The primary malicious URL is the highest priority IOC.

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=rolling+in+the+deep+adele+mp3+downlo
    • http://kedajon.bhexclusivecollections.com/uploads/1/3/1/4/131438641/c7b068.pdf
    • http://files.mbcnavarino.org/uploads/1/3/1/3/131383821/xowenozuwusu-mulififugi-modofo.pdf
    • http://tokogafid.annaephoto.com/uploads/1/3/2/6/132682883/fifilekikenimod_tarujomepozewe.pdf
    • http://files.islandwidefamilytours.com/uploads/1/3/0/7/130739951/vewowojetup-biguku-wikulukekiw.pdf
    • https://cdn.shop
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/list_of_awards_and_honours_2018.pdf
    • https://cdn.shopify.com/s/files/1/0434/0501/7238/files/faa_aircraft_registration_application_form_8050-_1.pdf
    • https://cdn.shopify.com/s/files/1/0436/5549/5833/files/paginelagef.pdf
    • https://cdn.shopify.com/s/files/1/0431/8180/1629/files/coordinate_graphing_worksheets_halloween.pdf
    • https://cdn.shopify.com/s/files/1/0428/1804/4070/files/viniwevetu.pdf
    • https://cdn.shopify.com/s/files/1/0447/9890/2438/files/megofuwoselibuvoge.pdf
    • https://cdn.shopify.com/s/files/1/0434/6078/8390/files/i_can_t_say_no_oklahoma.pdf
    • https://cdn.shopify.com/s/files/1/0429/2955/3575/files/gojuwunadedawume.pdf
    • https://cdn.shopify.com/s/files/1/0447/5482/9463/files/hallelujah_a_soulful_celebration_sheet_music.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_off00005250.bin
97d5960ab2ec9b047ff39b554eadf28919940f27c3449254bf8b19d2cec732af		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5250 5360 bytes
font_01_sfnt_off0000647b.bin
9c582689db6d3bc93128d8c3e9b5c969e6f98c67ee1b2ab4fbcaa2b83305efe7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x647B 9544 bytes

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