Malicious PDF — malware analysis report

Static analysis result for SHA-256 3592273723b401d9…

MALICIOUS

PDF

55.1 KB Created: 2020-08-02 07:08:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a30c5e7d4836d517814cf7c0d3f7596d SHA-1: 4a20c0fdb4758cf42317e28c567ad50de5c3f424 SHA-256: 3592273723b401d942f1a12cfd46fae2502821a1e03b7601b5630ca63f3ec94c
150 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link pointing to 'https://ttraff.com/pify?keyword=minecraft+teleport+to+player'. This URL is presented within the document body, suggesting a social engineering lure. The PDF also exhibits characteristics of a link farm, with numerous embedded URLs, many hosted on Shopify, likely for SEO manipulation to increase visibility. The ML classifier strongly flags this PDF as malicious.

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.com/pify?keyword=minecraft+teleport+to+player
    • http://files.jessandkatdesigns.com/uploads/1/3/1/0/131071243/xilezefuji.pdf
    • http://files.orientalcollectables.com/uploads/1/3/1/6/131606491/kanamitasifaf_nuridalelifar_zunurusujonogew_lokot.pdf
    • http://files.bridgetutorial.net/uploads/1/3/1/3/131380445/tarevusijojapob.pdf
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/kuxafavovawexojibuwo.pdf
    • https://cdn.shopify.com/s/files/1/0431/5581/6608/files/navifup.pdf
    • https://cdn.shopify.com/s/files/1/0432/1188/2653/files/38229021978.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/dubisetebezurazoxodo.pdf
    • https://cdn.shopify.com/s/files/1/0429/3538/6275/files/gewitabisopalavaxiwib.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/25324943410.pdf
    • https://cdn.shopify.com/s/files/1/0436/3013/3406/files/kijemukevoniwamevizinoge.pdf
    • https://cdn.shopify.com/s/files/1/0429/0949/9551/files/pixezosutulisijegenebula.pdf
    • https://cdn.shopify.com/s/files/1/0434/4614/1093/files/licey_vs_aguilas.pdf
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/pekomipufis.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_off00009a31.bin
e61092e81469166d87bfc72f46724739fba3d7502d3d8f874e3a3e68d43a6b12		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9A31 4936 bytes
font_01_sfnt_off0000ab27.bin
90cb69790019cb58a88a9aa2ee4f50be2ab665a59e1c0341123f0cddb0b9a220		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAB27 10668 bytes

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