Malicious PDF — malware analysis report

Static analysis result for SHA-256 407c973fd14f3dd2…

MALICIOUS

PDF

51.1 KB Created: 2020-08-20 20:17:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 454b378fe98812fa9b0ab0fabeb9c87f SHA-1: 02c4054641fa6fdc1c05d38f25d7fcdab8f8f984 SHA-256: 407c973fd14f3dd219cad7045fae1317c10502d14def5b8ed457c5f209d1eed0
120 Risk Score

Malware Insights

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

The PDF file contains a link farm and a direct link to a known malicious redirector, ttraff.com. This indicates a phishing or scam attempt, likely to lead the user to malicious content or further compromise. The document body, though heavily obfuscated, contains the URL that triggered the heuristic firings.

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=terraform+iam+role+aws+managed+policy
    • http://files.icanmo.org/uploads/1/3/1/4/131482941/3373f8b25aee.pdf
    • http://files.agefriendlybethel.org/uploads/1/3/1/3/131379037/tilusinapeji.pdf
    • http://files.icanmo.org/uploads/1/3/1
    • https://cdn.shopify.com/s/files/1/0429/5501/4298/files/motip.pdf
    • https://cdn.shopify.com/s/files/1/0432/3262/4808/files/35303282840.pdf
    • https://cdn.shopify.com/s/files/1/0439/4260/9051/files/8710072270.pdf
    • https://cdn.shopify.com/s/files/1/0428/9983/2995/files/mexeretura.pdf
    • https://cdn.shopify.com/s/files/1/0431/5712/7336/files/bijiramojopivawa.pdf
    • https://cdn.shopify.com/s/files/1/0430/6495/0945/files/48481412360.pdf
    • https://cdn.shopify.com/s/files/1/0430/0842/6147/files/79959205834.pdf
    • https://cdn.shopify.com/s/files/1/0429/8768/4003/files/12928822526.pdf
    • https://cdn.shopify.com/s/files/1/0431/5509/5716/files/18611839033.pdf
    • https://cdn.shopify.com/s/files/1/0432/2020/5726/files/39725394028.pdf
    • https://cdn.shopify.com/s/files/1/0431/8904/3358/files/wawejo.pdf
    • https://cdn.shopify.com/s/files/1/0435/3340/2266/files/oxford_dictionary_english_to_gujarati_free_download_file.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_off000070c3.bin
18c6331fe0d232ec8a8c72038a18c78948263446edebd309cebff59644eae62d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x70C3 5324 bytes
font_01_sfnt_off000082cf.bin
1f7f4792f26df298f594958f32738053e85795a47fdf6fe5c5eb9fa179cadab2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82CF 14412 bytes
font_02_sfnt_off0000b0d2.bin
cd94ef65598b1866d0653cdd88243d989fd81359c0e770c2d3a4858f1c2f6d34		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB0D2 4324 bytes

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