Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e30c729c7f607dd…

MALICIOUS

PDF

42.7 KB Created: 2020-08-18 13:25:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: c0d808b14149abaebf9515780d0d04ae SHA-1: 2bf4df5047a41fab67fdc35b3f1f939ab3ff0cac SHA-256: 2e30c729c7f607dd7d30f0f9e01fe982f23bb7d1609cf65c196887899f4140d6
150 Risk Score

Malware Insights

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

The PDF contains a link farm designed to redirect users to malicious infrastructure, specifically identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The embedded URL https://ttraff.ru/pify?keyword=chess+apps+for+android+best is a primary indicator of this malicious redirection. The document body, though partially corrupted, contains references to this URL and other Shopify links, suggesting a lure to external content. The ML classifier strongly supports the malicious nature of this PDF.

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=chess+apps+for+android+best
    • http://files.bagribybagri.com/uploads/1/3/2/6/132680986/1780476.pdf
    • http://files.cyclebavaria.com/uploads/1/3/0/7/130775200/xuzolizatelirapabak.pdf
    • http://files.daydreamscakecompany.com/uploads/1/3/0/7/130739919/8fb06e9434.pdf
    • http://files.allstarscomedyentertainment.com/uploads/1/3/0/7/130740391/gujiwewugip-riwanixivoli-xezebito-vaxegokasinaze.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nifafujejugafux.pdf
    • https://cdn.shopify.com/s/files/1/0433/6674/4216/files/ipad_annotation_app_reddit.pdf
    • https://cdn.shopify.com/s/files/1/0441/1041/3976/files/penodirofowegokiburepe.pdf
    • https://cdn.shopify.com/s/files/1/0429/4773/9811/files/37421479033.pdf
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/domejepizorejik.pdf
    • https://cdn.shopify.com/s/files/1/0439/8612/4958/files/simezula.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/88065476392.pdf
    • https://cdn.shopify.com/s/files/1/0444/4153/4631/files/pangu_9._0._2_jailbreak.pdf
    • https://cdn.shopify.com/s/files/1/0431/6109/2255/files/99333497232.pdf
    • https://cdn.shopify.com/s/files/1/0432/2351/5294/files/luxubusisepu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3583/6072/files/merosulesapowifuvajoz.pdf
    • https://cdn.shopify.com/s/files/1/0436/0873/5907/files/push_code_to_heroku.pdf
    • https://cdn.shopify.com/s/files/1/0433/2378/5370/files/ziluzo.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_off00006b5d.bin
dc5b620a5d1fad05cdd840fc5188a12d9e05fbbab88b5fd3380cdc0acaaeff37
pdf-font-stream PDF embedded font (sfnt) at offset 0x6B5D 5140 bytes
font_01_sfnt_off00007cc6.bin
24a9e8abebc841842906b2284f8664c4206a539b50f9760ce8be4487632b9bc0
pdf-font-stream PDF embedded font (sfnt) at offset 0x7CC6 9740 bytes