Malicious PDF — malware analysis report

Static analysis result for SHA-256 bfd789589c64e190…

MALICIOUS

PDF

108.3 KB Created: 2020-08-17 11:19:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 411b1f0a6db172013b963e521a4dc019 SHA-1: 0844a220895086f09111e1648442644b0ca71065 SHA-256: bfd789589c64e1905ace9ef1bdb76925c11ea87debb7c61951792f546880fa87
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=shroud+of+turin+image+formation'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute malicious content. 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.ru/pify?keyword=shroud+of+turin+image+formation
    • http://files.simplytravelplanning.com/uploads/1/3/1/4/131483281/ff491b91f0e.pdf
    • http://regamivid.vhcministry.org/uploads/1/3/2/6/132680813/c2803eb87.pdf
    • https://cdn.shopify.com/s/files/1/0429/6150/2362/files/dejofojinibosoge.pdf
    • https://cdn.shopify.com/s/files/1/0435/9582/5314/files/employee_transfer_letter_sample.pdf
    • https://cdn.shopify.com/s/files/1/0432/0962/1664/files/green_revolution_analysis.pdf
    • https://cdn.shopify.com/s/files/1/0430/6275/5490/files/sumilunajaf.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3089/files/xedexonuzenaruluzosizasur.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/anatomy_of_abdominal_muscles.pdf
    • https://cdn.shopify.com/s/files/1/0432/1142/3902/files/wofuzokaropezedugu.pdf
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/38915498272.pdf
    • https://cdn.shopify.com/s/files/1/0438/8241/4248/files/champions_league_anthem_sheet_music.pdf
    • https://cdn.shopify.com/s/files/1/0436/8013/7369/files/4311510705.pdf
    • https://cdn.shopify.com/s/files/1/0429/8375/1831/files/73900337107.pdf
    • https://cdn.shopify.com/s/files/1/0428/8921/6163/files/30894759530.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_off00016c16.bin
fb1f8d5169991f099801fee9cec983c92525a92038ddbd1c9d3b3afb3c80aadc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x16C16 5212 bytes
font_01_sfnt_off00017d9d.bin
c6e641474c8cd2ef3ff1a3fd5d42659df60e5e7c697dd95b32f50b7bf67602c2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17D9D 11204 bytes

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