Malicious PDF — malware analysis report

Static analysis result for SHA-256 2252f1ce1fa99211…

MALICIOUS

PDF

44.1 KB Created: 2020-08-22 00:15:35 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3b794773a36884e60a25c7c29a56578c SHA-1: 74a4a6b7084bb394cebc14f2029d9d4e66669252 SHA-256: 2252f1ce1fa992113aae1a7d727d31c2304f5896ce7d7ef6b60cd738457d094e
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the redirector link, suggesting a social engineering lure. The heuristic firings indicate the PDF is designed to redirect users to malicious infrastructure, likely for further exploitation or credential harvesting.

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/pify?keyword=merge+two+columns+in+rdlc+report
    • http://fizefimun.raydesign.com/uploads/1/3/0/7/130776271/xolelefuruvem_fagefebumabibi.pdf
    • http://files.bigfatsmile.io/uploads/1/3/1/4/131438869/sorujavubib.pdf
    • http://files.bigfatsmi
    • https://cdn.shopify.com/s/files/1/0451/0639/7337/files/android_root_program_free.pdf
    • https://cdn.shopify.com/s/files/1/0427/9291/1007/files/nowuwinudu.pdf
    • https://cdn.shopify.com/s/files/1/0435/2360/4631/files/cannot_find_required_map_name.pdf
    • https://cdn.shopify.com/s/files/1/0430/4017/8333/files/7500495266.pdf
    • https://cdn.shopify.com/s/files/1/0440/3000/1302/files/sesedewajural.pdf
    • https://cdn.shopify.com/s/files/1/0429/6612/2662/files/59601766728.pdf
    • https://cdn.shopify.com/s/files/1/0431/1079/3370/files/bengali_movie_songs_dj_remix_free.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/kewosa.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_off00006de2.bin
dc680ba091b79c2b5c3e4d13c67086fe0f9dcbcd54b38128afcfbbe735ee2e38		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DE2 5280 bytes
font_01_sfnt_off00007fe2.bin
2d55952524dc2166b78d441085ebedcab1f7eb154787423c5930fd6082e5c69a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7FE2 10344 bytes

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