Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa589bcca66f4b8c…

MALICIOUS

PDF

33.0 KB Created: 2020-08-02 13:45:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9bc71e2d8daf73f598f7dd0383a4d72e SHA-1: 373c923736135e9fe3cedd576cefe982e157045d SHA-256: aa589bcca66f4b8c4fc731b469a9c72414f5746f85e13a44b0b647a6a3839a64
150 Risk Score

Malware Insights

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

This PDF document exhibits malicious behavior through a large number of embedded links, many of which point to a link farm hosted on Shopify. The primary malicious URL, 'https://ttraff.ru/pify?keyword=mortal+kombat+rom', is identified as a malicious redirector. The document's content, though heavily obfuscated, appears to be a lure related to 'Mortal Kombat rom'. The extensive use of Shopify links suggests an attempt to obscure the true destination or leverage SEO tactics for distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=mortal+kombat+rom
    • http://files.audaciousmonkey.com/uploads/1/3/1/4/131483128/8cc41aa33f7b343.pdf
    • http://files.giaddiecreations.com/uploads/1/3/1/1/131164081/2b8a1f70a463.pdf
    • http://files.writinginkc.com/uploads/1/3/1/8/131871602/xisiporetoxusubumexo.pdf
    • http://files.jennycrakes.com/uploads/1/3/1/3/131384429/vujutozuwevanomuseb.pdf
    • https://cdn.shopify.com/s/files/1/0433/1202/1662/files/54654124102.pdf
    • https://cdn.shopify.com/s/files/1/0433/7932/7130/files/26552027302.pdf
    • https://cdn.shopify.com/s/files/1/0436/3301/6982/files/67604350439.pdf
    • https://cdn.shopify.com/s/files/1/0428/2476/1507/files/535035237.pdf
    • https://cdn.shopify.com/s/files/1/0428/9013/3663/files/petixivalebuju.pdf
    • https://cdn.shopify.com/s/files/1/0432/1509/3920/files/53715370181.pdf
    • https://cdn.shopify.com/s/files/1/0432/1076/8546/files/59345911839.pdf
    • https://cdn.shopify.com/s/files/1/0428/8089/3084/files/14074640823.pdf
    • https://cdn.shopify.com/s/files/1/0428/5094/3142/files/nabedi.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_off000044c1.bin
c6b788f5a22bfdd72548ea04896f297c500237f204e5b4b665241f2349adb65f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x44C1 4864 bytes
font_01_sfnt_off00005541.bin
16c20995d227488fe111831970108593d53a731da4b13df6f7bf0b6ca4a42650		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5541 10100 bytes

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