Malicious PDF — malware analysis report

Static analysis result for SHA-256 8e9117f423a01eee…

MALICIOUS

PDF

40.1 KB Created: 2020-09-02 00:06:44 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a26ad7bdea0b1fb063d22cde5cda11bf SHA-1: 5fc68707fa5c7f3bbb66be1cbcfeff2b080799e7 SHA-256: 8e9117f423a01eeec5cc8bd9ac7561012d405f3ca7da627bffbb5db6288853c1
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a malicious redirector link to ttraff.com, which is associated with malicious activity. Additionally, it features a large number of embedded links pointing to PDF files hosted on Shopify and other domains, indicating a link farm likely used for SEO manipulation or to distribute further malicious content. The ML classifier strongly supports the malicious verdict.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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/wix?keyword=filmywap+movie++2019
    • https://cdn.shopify.com/s/files/1/0431/4441/3350/files/31421609923.pdf
    • https://cdn.shopify.com/s/files/1/0430/8228/5216/files/awdhesh_premi_bhojpuri_video_2018_mp4.pdf
    • https://cdn.shopify.com/s/files/1/0430/3015/1330/files/gopimaw.pdf
    • https://cdn.shopify.com/s/files/1/0435/2930/6263/files/wajenaxatawalovovo.pdf
    • https://cdn.shopify.com/s/files/1/0428/6991/5814/files/pekodedexorilovo.pdf
    • https://static.usrfiles.com/ugd/34ec99_1638bd1271224e4e969d64b9b09f066a.pdf
    • https://static.usrfiles.com/ugd/529ba0_71f935e971df4c0c9dd901b8f5446aa1.pdf
    • https://static.usrfiles.com/ugd/a2e20a_62a552d9b7e046e9b798cc690ad4a11d.pdf
    • https://static.usrfiles.com/ugd/03ae60_6c58cacc3d2e4368a89e0a2b8a1ba375.pdf
    • https://static.usrfiles.com/ugd/a2c2bc_40cf4906882c4bcb94720f3b9cbc43fc.pdf
    • https://static.usrfiles.com/ugd/de65f7_5a43fe7aede54b578c96a710ba8d2682.pdf
    • https://static.usrfiles.com/ugd/81ef4b_6d2079cb6a2a4c168f8953d8b1f4ed08.pdf
    • https://cdn.shopify.com/s/files/1/0433/7005/3784/files/89179418015.pdf
    • https://cdn.shopify.com/s/files/1/0439/5152/1947/files/72187234420.pdf
    • https://cdn.shopify.com/s/files/1/0449/7453/8920/files/jahiem_the_makings_of_a_man.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_off00005ea1.bin
338d5c89a044d9c69b81ed2f7a5c80c2901ab77935c5914ce012ce8e9f077a2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EA1 5380 bytes
font_01_sfnt_off00007106.bin
31c854c851dc038d4ca07533220aed9c0cef6f1eaa7c5c5c51af43d610ca6791		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7106 10048 bytes

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