Malicious PDF — malware analysis report

Static analysis result for SHA-256 2fa390c6900582b1…

MALICIOUS

PDF

39.5 KB Created: 2020-08-20 06:55:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 79f71b134f4215d36784c2bdc4536aff SHA-1: b466513058a172c1475e99489b0de50e336fcc21 SHA-256: 2fa390c6900582b1c4a84bef135f127ab42339573a8034670e9c5ad44c543c08
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to benign content on Shopify. However, one critical heuristic identified a link to a known malicious redirector, ttraff.cc, which is disguised as a judicial review guide. This suggests the document's primary purpose is to lure users to malicious infrastructure. No scripts were extracted from this sample.

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=administrative+court+judicial+review+guide+2019
    • http://files.abclassics.nl/uploads/1/3/2/7/132710780/velasawarenejukemejo.pdf
    • https://cdn.shopify.com/s/files/1/0429/0691/0876/files/angle_between_two_lines_problems_with_solution.pdf
    • https://cdn.shopify.com/s/files/1/0431/5663/5816/files/78218111647.pdf
    • https://cdn.shopify.com/s/files/1/0439/6302/3518/files/jatatofusebafa.pdf
    • https://cdn.shopify.com/s/files/1/0430/3133/0969/files/entrepreneurial_development_textbook.pdf
    • https://cdn.shopify.com/s/files/1/0437/7667/1895/files/dexelaru.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/luzugojozawok.pdf
    • https://cdn.shopify.com/s/files/1/0438/2323/5232/files/30634725789.pdf
    • https://cdn.shopify.com/s/files/1/0432/4179/9843/files/check_your_aviation_english_download.pdf
    • https://cdn.shopify.com/s/files/1/0432/3393/5519/files/mcgraw_hill_10_act_practice_tests_5th_edition.pdf
    • https://cdn.shopify.com/s/files/1/0434/7058/6016/files/7753387659.pdf
    • https://cdn.shopify.com/s/files/1/0431/1711/7601/files/anemia_por_deficiencia_de_hierro_tratamiento.pdf
    • https://cdn.shopify.com/s/files/1/0438/7084/7131/files/27712261301.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_off00005af1.bin
49bf5dc8d50965a8cbdd5987fe59082a74dd8a92abae7ea55281bdc4157fe926		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AF1 5956 bytes
font_01_sfnt_off00006f32.bin
130fc3275ccc265865177689fc2afdc54bd9f5b9ef79787c74214d8bf2e4b8d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F32 9960 bytes

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