Malicious PDF — malware analysis report

Static analysis result for SHA-256 d40aae27cbacd68b…

MALICIOUS

PDF

48.6 KB Created: 2020-08-08 14:02:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3eabc48c627be9f3e8a8fc9b48d77a9e SHA-1: c37335173ae099ecb31a077b53267ecdac5eb003 SHA-256: d40aae27cbacd68b86fbd2e40446bb8b06c99b65f5758425c25888bf2dceef39
120 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded links, with one heuristic specifically identifying it as a 'PDF_SEO_LINK_FARM'. The primary malicious link, 'https://ttraff.cc/pify?keyword=centenarian+act+of+2020+pdf', is flagged as a redirector to known malicious infrastructure. The document body, though heavily obfuscated, contains references to the 'Centenarian Act of 2020 PDF', suggesting a lure to entice users to click on the embedded links. The presence of multiple shopify.com links and other file-hosting domains indicates a broad distribution strategy.

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=centenarian+act+of+2020+pdf
    • http://files.cheryltesslersolit.org/uploads/1/3/0/7/130738622/vukezenojive.pdf
    • http://files.purplewax.com/uploads/1/3/1/4/131407530/ribisifitel-fuzeririkizonot.pdf
    • http://suzotu.eviepeevie.com/uploads/1/3/0/8/130874422/mapuketori.pdf
    • http://files.johntstephan.com/uploads/1/3/0/8/130814226/58ebdc43d2.pdf
    • http://tajip.cardiffpilatesstudio.co.uk/uploads/1/3/1/4/131438539/2859efa05.pdf
    • https://cdn.shopify.com/s/files/1/0429/3338/7420/files/anemia_falciforme_2020_pediatria.pdf
    • https://cdn.shopify.com/s/files/1/0433/8214/5182/files/mizajufanune.pdf
    • https://cdn.shopify.com/s/files/1/0432/9524/4441/files/business_report_writing_book.pdf
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/mudane.pdf
    • https://cdn.shopify.com/s/files/1/0431/1878/8774/files/sejomikasudepezakelepawum.pdf
    • https://cdn.shopify.com/s/files/1/0433/9243/4343/files/47011197475.pdf
    • https://cdn.shopify.com/s/files/1/0436/3033/0019/files/vexivejedel.pdf
    • https://cdn.shopify.com/s/files/1/0440/0214/8510/files/resto_druid_artifact.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/38655606666.pdf
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/swiss_721_fonts.pdf
    • https://cdn.shopify.com/s/files/1/0440/6480/0918/files/ferowufix.pdf
    • https://cdn.shopify.com/s/files/1/0433/9436/7649/files/xerostomia_causas.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005be6.bin
26bdb1fd47ba792685d06a5da30640db0a39281975ea86445e1114fad66dfbd4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5BE6 5024 bytes
font_01_sfnt_off00006cfa.bin
89454d8ece1be00d2333aac76955f46ed17c4d141322e635bf27f42efb43e54e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6CFA 2116 bytes
font_02_sfnt_off000076c6.bin
554cc245e440f89cbc4d18644b8496dad1e04911f44b2cfb14232041f70f5353		 pdf-font-stream PDF embedded font (sfnt) at offset 0x76C6 14992 bytes
font_03_sfnt_off0000a560.bin
a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA560 4324 bytes

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