Malicious PDF — malware analysis report

Static analysis result for SHA-256 ecf83e5e350cc239…

MALICIOUS

PDF

59.9 KB Created: 2020-08-12 07:43:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 67f889185b83720b5c048d0559ce1b20 SHA-1: a0d6b5a1a06bfaaa0ca024361db27e34c055b4d5 SHA-256: ecf83e5e350cc23948b9d785cc473339ee871a613aed016185f1b169e1f622bf
120 Risk Score

Malware Insights

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

The PDF contains a mass external link farm, with one prominent link pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text related to 'Bahria town building bylaws pdf' and includes the malicious URL, suggesting a lure to a phishing or malware distribution site. The presence of numerous links, many hosted on Shopify, indicates a link farm designed to obscure the ultimate destination.

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=bahria+town+building+bylaws+pdf
    • http://ligak.hboierc.com/uploads/1/3/1/4/131408738/nodidulaturamo-lifogereka-donivelod.pdf
    • http://files.setxnewhorizons.com/uploads/1/3/1/3/131384071/wozuvin.pdf
    • http://rogope.britt324.com/uploads/1/3/1/4/131437119/sobubovitemelilaf.pdf
    • http://files.tohallyuwithlove.com/uploads/1/3/1/4/131407135/d559bcd5c6ab64.pdf
    • http://files.timberlinehunting.com/uploads/1/3/1/0/131069934/sokigemimipapize.pdf
    • https://cdn.shopify.com/s/files/1/0430/3169/1421/files/vobujuluziwunesa.pdf
    • https://cdn.shopify.com/s/files/1/0433/3630/2750/files/kidibewa.pdf
    • https://cdn.shopify.com/s/files/1/0428/5025/5014/files/prc_117g_technical_manual.pdf
    • https://cdn.shopify.com/s/files/1/0433/5314/5495/files/college_admission_essay.pdf
    • https://cdn.shopify.com/s/files/1/0435/9464/5663/files/origin_of_computer_graphics.pdf
    • https://cdn.shopify.com/s/files/1/0433/3161/6918/files/1685789718.pdf
    • https://cdn.shopify.com/s/files/1/0437/2309/6216/files/defesevimovibilokapib.pdf
    • https://cdn.shopify.com/s/files/1/0434/5715/1142/files/74703715491.pdf
    • https://cdn.shopify.com/s/files/1/0437/9607/0560/files/22800802444.pdf
    • https://cdn.shopify.com/s/files/1/0429/2041/1289/files/xuzudawavizakiriputure.pdf
    • https://cdn.shopify.com/s/files/1/0431/7026/7291/files/telcordia_sr_332.pdf
    • https://cdn.shopify.com/s/files/1/0434/7917/1222/files/82058279809.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_off0000ab0a.bin
6843e65db96d12d89cc972b6d3a27abeac3d6de9618c91a6e29b6be376ef92b3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB0A 5688 bytes
font_01_sfnt_off0000be72.bin
590601fc12a3f4ee49061a7b63fa354fe6fc87c3fb396f99a55270b5eeea3f01		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE72 10540 bytes

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