Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfeee757659fc644…

MALICIOUS

PDF

41.3 KB Created: 2020-08-21 11:50:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3ee97f4e88ac619e17ec183c697666a4 SHA-1: 5149c6b118406ef731ab6a9cea7dd08dc6997fc9 SHA-256: dfeee757659fc64459bd64c7da26cbece375221a9a2225ce489adcd94b42b29d
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, with many pointing to a redirector service known to host malicious content. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector. The primary attack pattern involves luring users to external malicious sites through these embedded links.

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=android+6+store+photos+on+sd+card
    • http://files.oldparkgcequip.com/uploads/1/3/1/4/131454126/munopavo.pdf
    • http://tenisu.spikeofalltrades.com/uploads/1/3/2/6/132681513/gofepozogejul.pdf
    • http://zuwufawa.ajlegalaustralia.com/uploads/1/3/2/7/132740478/ab74d9afc6ff.pdf
    • https://cdn.shopify.com/s/files/1/0434/5597/1492/files/mabarexepakakuse.pdf
    • https://cdn.shopify.com/s/files/1/0437/6346/6391/files/best_book_reader_for_ipad.pdf
    • https://cdn.shopify.com/s/files/1/0434/6331/1513/files/12765629244.pdf
    • https://cdn.shopify.com/s/files/1/0461/4337/3480/files/45063815233.pdf
    • https://cdn.shopify.com/s/files/1/0430/3778/6265/files/33432931556.pdf
    • https://cdn.shopify.com/s/files/1/0434/0708/1630/files/2776827489.pdf
    • https://cdn.shopify.com/s/files/1/0432/2364/6365/files/animales_albinos.pdf
    • https://cdn.shopify.com/s/files/1/0447/9637/9285/files/montreal_convention.pdf
    • https://cdn.shopify.com/s/files/1/0434/1104/6558/files/76443091613.pdf
    • https://cdn.shopify.com/s/files/1/0432/0568/9499/files/1555735801.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/38935964995.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_off00006351.bin
f0fec719015773c37ba57669396910c2790cac1afb07d01e8a09a8ae20452936		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6351 5272 bytes
font_01_sfnt_off00007531.bin
05b5a9d067cc43bd4e4102d2663084083b89dfa761a4fd60446c8f3606be7d6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7531 10340 bytes

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