Malicious PDF — malware analysis report

Static analysis result for SHA-256 d577ffe3d29dcc06…

MALICIOUS

PDF

51.7 KB Created: 2020-08-09 08:59:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6321bce7be6473c4feaaa1250f9b809c SHA-1: adda2e41bbf8548c8e04f2f8ad2bc8d363824abd SHA-256: d577ffe3d29dcc069faaad8675afaaf0de646004d8bc44239a8eac6e0b802029
120 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.cc, which is disguised as a treatment for chronic sinusitis. This indicates a phishing or scam attempt. The PDF also hosts a large number of other links, many pointing to Shopify, suggesting a link farm for SEO manipulation or to obscure the malicious redirector. No scripts were extracted, but the primary malicious activity is the redirection to a harmful URL.

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=sinusitis+cr%25C3%25B3nica+tratamiento+pdf
    • http://files.gruffcorn13.com/uploads/1/3/1/4/131438137/9691198.pdf
    • http://zegapi.concordanimalhospital.com/uploads/1/3/2/7/132740214/cdcb6673a4401b.pdf
    • http://files.coawest.org/uploads/1/3/1/1/131164421/8981218.pdf
    • http://files.belizesportsoutreach.com/uploads/1/3/0/7/130775320/malezomafebej.pdf
    • https://cdn.shopify.com/s/files/1/0434/6383/5814/files/tularosusonibesofatepos.pdf
    • https://cdn.shopify.com/s/files/1/0430/5698/8317/files/7743984453.pdf
    • https://cdn.shopify.com/s/files/1/0437/7165/8392/files/fatasixozenu.pdf
    • https://cdn.shopify.com/s/files/1/0437/4573/8903/files/youtube_to_mp3_unblocked.pdf
    • https://cdn.shopify.com/s/files/1/0430/6052/7265/files/vuvasoxigubejirez.pdf
    • https://cdn.shopify.com/s/files/1/0439/1328/1688/files/zomeses.pdf
    • https://cdn.shopify.com/s/files/1/0432/8767/5036/files/ripisakaveropagoxina.pdf
    • https://cdn.shopify.com/s/files/1/0429/2929/1427/files/aufgaben_bruchrechnung_klasse_5.pdf
    • https://cdn.shopify.com/s/files/1/0430/2562/9347/files/trey_songz_smart_phone_lyrics.pdf
    • https://cdn.shopify.com/s/files/1/0436/7941/6473/files/john_deere_350_dozer.pdf
    • https://cdn.shopify.com/s/files/1/0434/8909/9938/files/22439981072.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000079c9.bin
e73142da0a3414190d412ea4a2c9c1e90a2a3ff5ce9cd8d1fe515ed7bda82f4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x79C9 5392 bytes
font_01_sfnt_off00008bb3.bin
8c327c148e9d3987569ce3d4bcbbc2a023bba28f1ec98032d0ce0267f1ee0044		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8BB3 11596 bytes
font_02_sfnt_off0000b171.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB171 4324 bytes

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