Malicious PDF — malware analysis report

Static analysis result for SHA-256 59a28a9ece5fde00…

MALICIOUS

PDF

46.9 KB Created: 2020-08-30 00:23:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 5afaea5b3e1de7526ce59fa78b51f1b5 SHA-1: 0599362b355b1dba33cdffdc4cb3f891a7748684 SHA-256: 59a28a9ece5fde00e49fce7cef8f83a4554d699de06cb0dd5bc180f8b139181a
120 Risk Score

Malware Insights

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

The PDF file contains multiple embedded links, with one identified as a malicious redirector pointing to 'ttraff.com'. This suggests a phishing or scam attempt, likely using a lure related to the 'Borderlands 3' game to entice clicks. The PDF also exhibits characteristics of a link farm, with numerous external links, further supporting a malicious intent to drive traffic to potentially harmful sites.

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/wix?keyword=borderlands+3+4+button+puzzle
    • https://static.usrfiles.com/ugd/b8c837_bdba102466e944d28201341681839255.pdf
    • https://static.usrfiles.com/ugd/b8c837_d2a64e9ec32d43a7ada7c7ae41efe6a7.pdf
    • https://static.usrfiles.com/ugd/39cb9d_2bf0b783f1644c5087fbd93b444d3799.pdf
    • https://static.usrfiles.com/ugd/b8c837_01f2fd2444b2434586ba0b0969919ead.pdf
    • https://cdn.shopify.com/s/files/1/0429/9754/7157/files/wexaluxusesumo.pdf
    • https://cdn.shopify.com/s/files/1/0432/3747/4472/files/bowalolutamojuvemapudib.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/xomuburisuxenogiduta.pdf
    • https://static.usrfiles.com/ugd/1a89c8_312ec00bbe8f48fdac67edcad54b18a5.pdf
    • https://static.usrfiles.com/ugd/b8c837_fae9ca00ce134c25baf418245a62528c.pdf
    • https://cdn.shopify.com/s/files/1/0457/8505/5398/files/65198668659.pdf
    • https://cdn.shopify.com/s/files/1/0431/0899/1140/files/20732211825.pdf
    • https://cdn.shopify.com/s/files/1/0434/4204/5090/files/devegu.pdf
    • https://cdn.shopify.com/s/files/1/0430/8251/4585/files/librecambismo_y_proteccionismo.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006adf.bin
3f4f56ac3ee84109023d22e79c6b60e0f34319ecfd23aa6980b2d37765c9b5f4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6ADF 5280 bytes
font_01_sfnt_off00007cdf.bin
35bfacbcce4a449fde92c83fae889d0c524007d950284a13cdba8394c4516f9a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7CDF 10344 bytes
font_02_sfnt_off0000a051.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA051 4324 bytes

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