Malicious PDF — malware analysis report

Static analysis result for SHA-256 ba8a8d410f82e455…

MALICIOUS

PDF

47.2 KB Created: 2020-08-29 04:52:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ac47530e2f0d5f9f689f8584c0343c7 SHA-1: bbec7a5d6bcb8206228b50989498d16223aed0e7 SHA-256: ba8a8d410f82e455130dd26e7efd8eb24ebc63c632d36dcdd884a3628c0ebdd9
120 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.com'. Additionally, it exhibits characteristics of a PDF link farm, with numerous embedded links, many hosted on Shopify. The document body, though heavily corrupted, contains the URL 'https://ttraff.com/wix?keyword=mobile+movie+hd+film', suggesting a lure related to media content to entice clicks 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.com/wix?keyword=mobile+movie+hd+film
    • https://cdn.shopify.com/s/files/1/0428/9826/0124/files/fujataloletipobixodi.pdf
    • https://cdn.shopify.com/s/files/1/0431/2668/5850/files/wages_board_ordinance_sri_lanka_sinhala.pdf
    • https://cdn.shopify.com/s/files/1/0429/0556/7398/files/2208005109.pdf
    • https://cdn.shopify.com/s/files/1/0447/4231/2085/files/volume_formulas_for_3d_shapes.pdf
    • https://cdn.shopify.com/s/files/1/0432/4071/8493/files/65375507347.pdf
    • https://cdn.shopify.com/s/files/1/0430/6426/2818/files/bangla_thriller_books.pdf
    • https://static.usrfiles.com/ugd/b8c837_9100776099b04fd1ada3874c247ff6d2.pdf
    • https://static.usrfiles.com/ugd/b8c837_8b93aab9b6534946a35ba9b8ba8cb8e9.pdf
    • https://static.usrfiles.com/ugd/b8c837_909093583bfc4f7880e0198000c6c45a.pdf
    • https://static.usrfiles.com/ugd/b8c837_2c2ec6d995bc4fd9b56e1b516983341c.pdf
    • https://cdn.shopify.com/s/files/1/0437/1048/0533/files/powumenepikitewarevufu.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/10946529295.pdf
    • https://cdn.shopify.com/s/files/1/0437/9095/8749/files/tonuvomaf.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000067ac.bin
9611b915615a45cc7e229a6720278ea66dc3facb5fab57cdac4368a4cd6e5506		 pdf-font-stream PDF embedded font (sfnt) at offset 0x67AC 4868 bytes
font_01_sfnt_off0000782c.bin
01c8e2afb61ce583f9ebc3b0bc812ddd6431c0d44ad41324644e3f267f90813b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x782C 10076 bytes
font_02_sfnt_off00009ad3.bin
ead7fd593d7f5feef6f283420e9b55f8fa4552f107c64b0063d474dd3355abd8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9AD3 16164 bytes

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