Malicious PDF — malware analysis report

Static analysis result for SHA-256 aa7b07134bd0cf06…

MALICIOUS

PDF

39.4 KB Created: 2020-08-09 13:10:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 86363c0b129a0c9b84836b65331ab27d SHA-1: 682376a3880ae6348682b67131d884e41dd65f17 SHA-256: aa7b07134bd0cf06d91ae4a82dac4d8ecb15e19a0637efeeb1ee0175321d022b
120 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, which is also present in the document body. This link leads to 'ttraff.cc', a known malicious domain. The document also exhibits characteristics of a link farm, with numerous embedded URLs pointing to external resources, many of which are hosted on Shopify. The primary malicious link is designed to appear as a legitimate resource for 'entrepreneurship development'. No scripts were extracted from this sample.

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=entrepreneurship+development+pdf+agrimoon
    • http://files.maxiesknitwear.com/uploads/1/3/0/9/130968988/jumize.pdf
    • http://files.chicagoyouththeatrefest.org/uploads/1/3/1/8/131856232/zemididekomot.pdf
    • http://files.shoehutmgk.com/uploads/1/3/1/3/131379801/rufosabo.pdf
    • http://files.manestreethaircompany.com/uploads/1/3/0/7/130739069/fotujibesori-kosuboledimapim-pujonefezobo.pdf
    • https://cdn.shopify.com/s/files/1/0436/3363/9584/files/nitemowilezarogibujuf.pdf
    • https://cdn.shopify.com/s/files/1/0433/7080/7459/files/4151248667.pdf
    • https://cdn.shopify.com/s/files/1/0430/1471/7597/files/jobomorupiwerosanu.pdf
    • https://cdn.shopify.com/s/files/1/0432/2826/6654/files/credit_card_authorization_form_fillable.pdf
    • https://cdn.shopify.com/s/files/1/0435/4428/1247/files/franklin_gothic_font_free.pdf
    • https://cdn.shopify.com/s/files/1/0429/8381/7375/files/xetixefixagarosed.pdf
    • https://cdn.shopify.com/s/files/1/0431/2429/3796/files/monirizunemekilinodujosum.pdf
    • https://cdn.shopify.com/s/files/1/0434/4145/5254/files/wonder_2020_movie_script.pdf
    • https://cdn.shopify.com/s/files/1/0430/7727/1716/files/19798735132.pdf
    • https://cdn.shopify.com/s/files/1/0429/5829/1093/files/palos.pdf
    • https://cdn.shopify.com/s/files/1/0429/6795/7658/files/vifimajawosijez.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_off00005961.bin
795805720eb5adcf6e358c7faf0ea5fe3d4b10855742bcd75553852f643d28c3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5961 5472 bytes
font_01_sfnt_off00006be0.bin
8138772051bbeea53060240e8e9d35a5423a51e590e508d765f6a771202e765d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BE0 11320 bytes

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