Malicious PDF — malware analysis report

Static analysis result for SHA-256 d12cad98ef835e91…

MALICIOUS

PDF

46.2 KB Created: 2020-08-30 15:31:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 77e86a9068610a07b42b95afa263dd3f SHA-1: cbd4dcdb1834ce887a7418f6ccc5ad8b3ba8d6e8 SHA-256: d12cad98ef835e91377d00f629c8fc780aac7e42dd249f7845491b2d60efad8c
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector, ttraff.link, which is designed to lure users to malicious content. The document body, though heavily obfuscated, contains the URL and a title suggesting a lure related to medical information. The presence of a link farm further indicates a malicious intent to distribute links to potentially harmful content.

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.link/wix?keyword=komplikasi+dermatitis+atopik+pdf
    • https://static.usrfiles.com/ugd/6d59ab_007b5546be234b6eae9a0dc7e57fc967.pdf
    • https://static.usrfiles.com/ugd/48d9a1_b27474d52cec4e1f82a4daf7e255e2e6.pdf
    • https://static.usrfiles.com/ugd/79e0dc_7158495380114281a3dff0a5fb6ace3c.pdf
    • https://static.usrfiles.com/ugd/cac9e4_22ca4fb1ebe74709adfb008be39d99d4.pdf
    • https://cdn.shopify.com/s/files/1/0462/7126/6973/files/board_game_template.pdf
    • https://cdn.shopify.com/s/files/1/0436/1990/9794/files/take_on_me_deadpool.pdf
    • https://cdn.shopify.com/s/files/1/0435/0361/6165/files/pukerutafu.pdf
    • https://cdn.shopify.com/s/files/1/0433/4954/1013/files/43154493891.pdf
    • https://cdn.shopify.com/s/files/1/0429/1231/7603/files/fetal_monitoring_nice_guidelines.pdf
    • https://cdn.shopify.com/s/files/1/0451/2425/5898/files/fivex.pdf
    • https://cdn.shopify.com/s/files/1/0438/2274/3712/files/25911835975.pdf
    • https://cdn.shopify.com/s/files/1/0432/3147/7922/files/saraxosepazusod.pdf
    • https://cdn.shopify.com/s/files/1/0439/0046/9403/files/intoxicacion_por_barbituricos_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0427/8566/9279/files/assertions_d_audit.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_off00006a4e.bin
de367eed400264f70991f7c0c02958e2125cd7ffe984b009e7cb0a8e96380c0a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6A4E 4904 bytes
font_01_sfnt_off00007af0.bin
e94518592b9f002e751601acbeb272ceae36cb15e4875a1829e8d926bc5fb253		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7AF0 10380 bytes
font_02_sfnt_off00009dec.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DEC 4324 bytes

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