Malicious PDF — malware analysis report

Static analysis result for SHA-256 a0312fd43d3172da…

MALICIOUS

PDF

42.5 KB Created: 2020-08-04 17:05:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3da6ef1113ef64ad6c4cf77bd12567ff SHA-1: 7695f6649ed57a74283999e1986800b7df3c960e SHA-256: a0312fd43d3172da3e400e8aeed171327629260294b2b5bd2f2a7bf54d5dda44
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, many of which point to external resources. One of these links, 'https://ttraff.ru/pify?keyword=enlaces+intramoleculares+e+intermoleculares+pdf', is identified as a known malicious redirector. The document body, though heavily obfuscated, appears to be a lure related to PDF documents, likely intended to trick users into clicking the malicious 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.ru/pify?keyword=enlaces+intramoleculares+e+intermoleculares+pdf
    • http://files.sugarcoatedkiss.com/uploads/1/3/0/7/130739450/0adba.pdf
    • http://files.whaleswim-tonga.com/uploads/1/3/1/6/131607810/f078a366.pdf
    • http://files.gobeadz.com/uploads/1/3/1/3/131383651/polakaxizan.pdf
    • http://mubiso.thoughtjotsbrand.com/uploads/1/3/0/8/130874422/vudoxazawuze-sejeximovekoti-foduwuk.pdf
    • https://cdn.shopify.com/s/files/1/0437/3420/4568/files/kobanokagimuzajawojow.pdf
    • https://cdn.shopify.com/s/files/1/0431/6977/5782/files/25171231593.pdf
    • https://cdn.shopify.com/s/files/1/0438/6104/9494/files/25879653946.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/sedafasejizal.pdf
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/vudosakedixotabu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5317/0339/files/segugipabivuriwekajivun.pdf
    • https://cdn.shopify.com/s/files/1/0434/7386/2808/files/70055136353.pdf
    • https://cdn.shopify.com/s/files/1/0430/8120/3873/files/13663036240.pdf
    • https://cdn.shopify.com/s/files/1/0431/5742/2229/files/xizajimurusiga.pdf
    • https://cdn.shopify.com/s/files/1/0437/3708/8154/files/damanuwada.pdf
    • https://cdn.shopify.com/s/files/1/0431/2514/5760/files/vekulizimegi.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_off00006969.bin
4544e58ee70e54310bc188c9b3a27fc33609cb7f7bcb8196dfa908c099476e4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6969 5256 bytes
font_01_sfnt_off00007b35.bin
3a2f565c8d1c403a3ad5c74499c2836e909f344f6b576cc5cd90633e5abf96cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7B35 9872 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.