Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9f1a4c19b5ebaaa…

MALICIOUS

PDF

42.9 KB Created: 2020-08-01 14:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50db05cb52a0b1ec47f072dbfb2caa5c SHA-1: b62f79bd59e608ca7dd86f70ec477142357e62ed SHA-256: f9f1a4c19b5ebaaa870ab52b7685b432f6b5b373bc758128c79e3f54be13c171
120 Risk Score

Malware Insights

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

The PDF file contains a mass of external links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector at 'ttraff.com'. This redirector is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, contains the text 'Supernatural journal pdf' and the malicious URL, suggesting a lure to trick users into clicking the link.

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=supernatural+journal+pdf
    • http://files.fireweedcoffeeco.com/uploads/1/3/1/4/131452904/3837912.pdf
    • http://files.overthewire.co/uploads/1/3/1/4/131437532/2819802.pdf
    • http://files.behavinglively.org/uploads/1/3/2/6/132683088/kebadaxibapamite.pdf
    • https://cdn.shopify.com/s/files/1/0429/6838/3642/files/damekos.pdf
    • https://cdn.shopify.com/s/files/1/0432/7286/3904/files/pdf_to_dwg_online.pdf
    • https://cdn.shopify.com/s/files/1/0429/4203/8182/files/13622004745.pdf
    • https://cdn.shopify.com/s/files/1/0428/7230/7875/files/katisasuxofi.pdf
    • https://cdn.shopify.com/s/files/1/0430/0429/7375/files/mumafekibutuxezazasa.pdf
    • https://cdn.shopify.com/s/files/1/0431/0709/0589/files/15108847521.pdf
    • https://cdn.shopify.com/s/files/1/0431/1685/5457/files/11497548933.pdf
    • https://cdn.shopify.com/s/files/1/0438/4194/5760/files/89736330822.pdf
    • https://cdn.shopify.com/s/files/1/0434/8664/2336/files/51097236366.pdf
    • https://cdn.shopify.com/s/files/1/0431/8658/5749/files/32775385656.pdf
    • https://cdn.shopify.com/s/files/1/0431/7937/6798/files/shiva_purana_english.pdf
    • https://cdn.shopify.com/s/files/1/0434/3064/1829/files/bijodi.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_off00006bc9.bin
0451af31d951bda0fab06905e985fc26fde06d1e72dd48d8e563867b6d8ebcbf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BC9 5036 bytes
font_01_sfnt_off00007cfe.bin
6a2f40f7137908e9c6b74c499cf71211348058f17fdf83c5a8dacad0d03ce7f0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CFE 9876 bytes

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