Malicious PDF — malware analysis report

Static analysis result for SHA-256 90b584dcd0d293cc…

MALICIOUS

PDF

71.9 KB Created: 2020-08-26 08:05:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8d226d1c115cdf857e9285cac73802ad SHA-1: 17f69975d31478b33020dfc90986adfd15b041a7 SHA-256: 90b584dcd0d293cccab0654a3f7571f43f497d5bb8cc78f73dee730d4e62e296
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 'ttraff.com'. This indicates the document is designed to lure users to a potentially harmful website. The presence of numerous other embedded URLs, many hosted on 'cdn.shopify.com', suggests a link farm or distribution network. No scripts were extracted, but the primary malicious intent appears to be redirection.

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=%25D8%25A3%25D9%2586%25D8%25A7+%25D9%2585%25D9%2588%25D8%25B5%25D9%2584+%25D8%25A7%25D9%2584%25D9%2587%25D8%25A7%25D8%25AA%25D9%2581
    • http://pevazibin.lcandlepress.com/uploads/1/3/0/7/130776082/deserivum-vajikijirixa.pdf
    • https://cdn.shopify.com/s/files/1/0428/4933/7500/files/13374567416.pdf
    • https://cdn.shopify.com/s/files/1/0432/4697/7179/files/5142951537.pdf
    • https://cdn.shopify.com/s/files/1/0438/6154/1014/files/zireberapijexifa.pdf
    • https://cdn.shopify.com/s/files/1/0436/8046/5049/files/31295191725.pdf
    • https://cdn.shopify.com/s/files/1/0428/0903/2863/files/58743162268.pdf
    • https://cdn.shopify.com/s/files/1/0428/5123/8047/files/keduvi.pdf
    • https://cdn.shopify.com/s/files/1/0437/5045/7505/files/ocean_habitat_worksheets_for_kindergarten.pdf
    • https://cdn.shopify.com/s/files/1/0430/6183/7981/files/21327874939.pdf
    • https://cdn.shopify.com/s/files/1/0428/2348/3548/files/desokewukazoxipobed.pdf
    • https://cdn.shopify.com/s/files/1/0434/0239/5813/files/zinejizifupemode.pdf
    • https://cdn.shopify.com/s/files/1/0432/1165/3282/files/11511708294.pdf
    • https://cdn.shopify.com/s/files/1/0433/1244/7652/files/mixed_up_sentences_worksheet_ks1.pdf
    • https://cdn.shopify.com/s/files/1/0430/6924/3549/files/93461584596.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_006_off0000d883.bin
d0506f557746ce3468615e9bec832cd7fc9996e6b5aacf3621694327ca37674c		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0xD883 31944 bytes
font_00_sfnt_off0000908d.bin
88b4df287869f8a87cfca73fa70e055f9c8c0ff4f418bc447a4fa7089e3d2d74		 pdf-font-stream PDF embedded font (sfnt) at offset 0x908D 4068 bytes
font_01_sfnt_off00009e6c.bin
f52cd519e59d580149c98be816fff18922f0a27a4ba2c1667fcd947a87bf56a6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9E6C 17436 bytes
font_02_sfnt_off0000b86f.bin
ce7f2da7fb9955f9ab98bf21568bf30cdd78b96ceea9f0ec2b8587466690b030		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB86F 9336 bytes

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