Malicious PDF — malware analysis report

Static analysis result for SHA-256 1c10a49dcb11c89a…

MALICIOUS

PDF

43.5 KB Created: 2020-08-04 15:59:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 54b79bf06a87a949d92785c9d9d6c850 SHA-1: 75f6989aa9fc3b212660939d2aa9acddeb1700bc SHA-256: 1c10a49dcb11c89aba56f13158ba2dc8c27dc17c5ed3012a38009c72a7c88edf
120 Risk Score

Malware Insights

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

The PDF file contains heuristics indicating it links to a known malicious redirector and is part of a link farm. The embedded URL, 'https://ttraff.com/pify?keyword=list+of+cardinal+and+ordinal+numbers+pdf', is the primary indicator of malicious intent, likely serving as a lure to a phishing or malware distribution site. The document body, though heavily obfuscated, contains this URL, reinforcing its role in the attack.

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=list+of+cardinal+and+ordinal+numbers+pdf
    • http://wuvafu.rosevilleconnect.com/uploads/1/3/1/3/131378776/pakotafu.pdf
    • http://files.sesamecorner.com/uploads/1/3/2/3/132303382/ffe81fb23a40.pdf
    • http://files.xingyibo.com/uploads/1/3/1/6/131606672/81ef105d.pdf
    • https://cdn.shopify.com/s/files/1/0432/2790/6206/files/4747285326.pdf
    • https://cdn.shopify.com/s/files/1/0431/5653/7495/files/49260398581.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/taxadofurakokoxu.pdf
    • https://cdn.shopify.com/s/files/1/0433/6756/3420/files/woocommerce_ajax_add_to_cart.pdf
    • https://cdn.shopify.com/s/files/1/0432/5575/9011/files/sorufaxowaxutowam.pdf
    • https://cdn.shopify.com/s/files/1/0439/0469/6472/files/34037639012.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/jaled.pdf
    • https://cdn.shopify.com/s/files/1/0432/8492/2526/files/fashions_of_1934.pdf
    • https://cdn.shopify.com/s/files/1/0434/1612/5590/files/53229174910.pdf
    • https://cdn.shopify.com/s/files/1/0428/7175/0823/files/tefiwidobulikifugatoji.pdf
    • https://cdn.shopify.com/s/files/1/0438/6439/1845/files/zudumesefilup.pdf
    • https://cdn.shopify.com/s/files/1/0434/6780/0736/files/apartment_lease_agreement.pdf
    • https://cdn.shopify.com/s/files/1/0434/0970/3061/files/belazukam.pdf
    • https://cdn.shopify.com/s/files/1/0434/0449/2965/files/zuwopumunamujobowerexe.pdf
    • https://cdn.shopify.com/s/files/1/0432/8531/5737/files/bixepe.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_off0000656d.bin
f384d28f1770f29933b7d140abe70b1c77f604a694f79ef70b3b8cff46449baa		 pdf-font-stream PDF embedded font (sfnt) at offset 0x656D 5384 bytes
font_01_sfnt_off000077a6.bin
5d78a976969f21912cde707d6143d8e401a1d7d5f2c2593511c950cda39c9336		 pdf-font-stream PDF embedded font (sfnt) at offset 0x77A6 12780 bytes

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