Malicious PDF — malware analysis report

Static analysis result for SHA-256 ef2616b2782971bf…

MALICIOUS

PDF

41.9 KB Created: 2020-08-21 21:19:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4cdbd814ce0c445f7bfc27acb0438100 SHA-1: cd93b908b9192d50dfc27c346a4436605f5ed9a0 SHA-256: ef2616b2782971bf59c954c63bbc52b7d557751da19e32e7da5589a064d5df01
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to Shopify domains, but one critical link redirects to a known malicious infrastructure at 'ttraff.cc'. The document body, though heavily obfuscated, contains the same malicious URL. This suggests the PDF is designed as a link farm or lure to redirect users to malicious content, likely for phishing or malware distribution.

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=best+app+for+secret+folder+android
    • http://befuwul.deanvukelicstonemason.com/uploads/1/3/1/4/131452836/kinav-jogobixit-perenigov-mevurugivuba.pdf
    • https://cdn.shopify.com/s/files/1/0430/4335/6821/files/xoxakup.pdf
    • https://cdn.shopify.com/s/files/1/0430/4371/7274/files/definicion_autoestima_psicologia.pdf
    • https://cdn.shopify.com/s/files/1/0431/9117/3278/files/31336181723.pdf
    • https://cdn.shopify.com/s/files/1/0428/6296/8991/files/kalebivonakum.pdf
    • https://cdn.shopify.com/s/files/1/0434/0042/9731/files/61106783213.pdf
    • https://cdn.shopify.com/s/files/1/0433/7061/0851/files/39952751691.pdf
    • https://cdn.shopify.com/s/files/1/0433/9934/8389/files/bovisenilaw.pdf
    • https://cdn.shopify.com/s/files/1/0430/3467/3301/files/gekusavi.pdf
    • https://cdn.shopify.com/s/files/1/0431/5247/4280/files/amplexacin_y_amplexin.pdf
    • https://cdn.shopify.com/s/files/1/0433/9118/9157/files/zokidulaman.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/dosadibevejigavo.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_off000066a8.bin
8bb861f0777eea0c58cfead491f94c0143420a023a2b83e1ea96492adfa2583d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x66A8 5200 bytes
font_01_sfnt_off00007861.bin
7446beb3a5fb7b9c6ffa7f2c62b346ec8a66c729a546f3b062b5ec58d996c32a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7861 10092 bytes

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