Malicious PDF — malware analysis report

Static analysis result for SHA-256 845214ba439567fd…

MALICIOUS

PDF

59.4 KB Created: 2020-08-05 02:58:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4beacfc3f723026238dba953eb80af3b SHA-1: f849caaf8a67233f395fb335c0573db0c7c1df99 SHA-256: 845214ba439567fd3954bd1cc46decb103c044c4f0838a401a429ed646670a67
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with a critical heuristic firing for PDF_MALICIOUS_REDIRECTOR_LINK, pointing to 'https://ttraff.cc/pify?keyword=benoit+mandelbrot+pdf'. This indicates a phishing or redirection attempt. The PDF_SEO_LINK_FARM heuristic further suggests a large number of outbound links, likely for SEO manipulation or to distribute malicious content. The document body, though heavily obfuscated, contains the target URL, reinforcing the malicious redirection intent.

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=benoit+mandelbrot+pdf
    • http://files.cosmeticsupport.com/uploads/1/3/0/7/130738524/9214000.pdf
    • http://files.woutervanheesphotography.com/uploads/1/3/1/3/131379382/pozibemugerila-fuvoxewuzor-tuwiresedotip.pdf
    • http://files.iamnotmylaundry.com/uploads/1/3/1/8/131858043/df097d0fa2f1c.pdf
    • https://cdn.shopify.com/s/files/1/0437/4649/2565/files/87754967936.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35209966956.pdf
    • https://cdn.shopify.com/s/files/1/0435/4224/9621/files/bookmarks_in_word.pdf
    • https://cdn.shopify.com/s/files/1/0432/0185/5646/files/6135145376.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wopeg.pdf
    • https://cdn.shopify.com/s/files/1/0431/5476/8021/files/ramanaxulepuludeboder.pdf
    • https://cdn.shopify.com/s/files/1/0429/5429/3402/files/85278348929.pdf
    • https://cdn.shopify.com/s/files/1/0430/5757/8138/files/421942441.pdf
    • https://cdn.shopify.com/s/files/1/0440/5306/9974/files/bse_odisha_9th_class_history_book_download.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tivaluzisezulumavolo.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_off0000a8e2.bin
73d4558e95cb5458f95fa3ef8cfc7cef51d2061a1d85d331a49b294f339ae8f6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA8E2 5200 bytes
font_01_sfnt_off0000ba6e.bin
3b272715f6ef90b75edd020368cbdb61d215a5243fec716376f71a4594093afe		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBA6E 11480 bytes

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