Malicious PDF — malware analysis report

Static analysis result for SHA-256 574faeae560ed90c…

MALICIOUS

PDF

34.1 KB Created: 2020-09-17 23:38:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 70e200582db75761e6f6cc5591dfc476 SHA-1: dbb73b5236a60670f451886b6a47ab6105ad261b SHA-256: 574faeae560ed90cb380c266db3452ad79cc967092686b156def3e14dd6daa1f
120 Risk Score

Malware Insights

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

The PDF document contains a link farm designed to redirect users to malicious infrastructure, specifically to 'https://ttraff.me/wix?keyword=6.2.4+homework+answers'. This tactic is often used to distribute malware or phish for credentials. The document body, though heavily obfuscated, contains references to homework answers, aligning with the lure. 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.me/wix?keyword=6.2.4+homework+answers
    • https://833c89c1-4b56-4e03-88c1-2b6402815c30.filesusr.com/ugd/92ee2b_a99aa2bed56946ab921cffa003eee1b1.pdf?index=true
    • https://b3265e5c-613a-44ba-8edd-1d84dd4bee42.filesusr.com/ugd/09c3c7_2639e805a67b461a80852c427ea21982.pdf?index=true
    • https://3c484976-4b1d-4919-8592-c3710d8ec2bc.filesusr.com/ugd/43d598_9eb0b38325fc4e7aa269a796cc20e58b.pdf?index=true
    • https://baf49190-36c0-4e43-8f34-1bca75445c16.filesusr.com/ugd/bcc0e4_7c9c3ccc9baf403b8ab2c2531bff431a.pdf?index=true
    • https://092f7166-a3ba-4c51-8828-86653c1f387b.filesusr.com/ugd/120874_15c3b62a73124528b398f4734a1adb93.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/64989875230.pdf
    • https://cdn.shopify.com/s/files/1/0433/0913/8084/files/41494390946.pdf
    • https://cdn.shopify.com/s/files/1/0435/2468/5975/files/30089870179.pdf
    • https://cdn.shopify.com/s/files/1/0428/3911/3895/files/34733042469.pdf
    • https://e1c86e38-a935-440d-b639-4998955dc445.filesusr.com/ugd/c3f88d_a5c7a7f483e2474f96b5f371700979d4.pdf?index=true
    • https://74e36357-af06-4502-933d-ae9fd952e1ac.filesusr.com/ugd/ebc5f9_53393f279f9e430091fe876c638cb0f7.pdf?index=true
    • https://ca087e00-a49e-4eb2-9b01-e3f45455ba9f.filesusr.com/ugd/bfd78a_87e2a935585b4b868cfe781a4704eabf.pdf?index=true
    • https://c29f61fa-27c9-4e27-901e-2fe38677265a.filesusr.com/ugd/9e14ca_6961032a05394c76b63db2c09ee373ac.pdf?index=true
    • https://1b2cf1e2-cb00-4322-8f27-583653a9563a.filesusr.com/ugd/3be48b_d5c748059ef64c7b967e90474f5a0679.pdf?index=true
    • https://978f319d-e361-4f6e-8889-391b44ca7657.filesusr.com/ugd/6f58fb_6fbc81fd17b14edaac45ebe8c75e20c0.pdf?index=true
    • 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_off00004757.bin
98219ebba890a8891fd8f67a2f009ef6b8c3731eb5a0732d574af46e80d3359f
pdf-font-stream PDF embedded font (sfnt) at offset 0x4757 5360 bytes
font_01_sfnt_off00005984.bin
fe9618f06fb143ce3e3c552639e0dac0a7cc6557d02ccdf18161a364d7455a36
pdf-font-stream PDF embedded font (sfnt) at offset 0x5984 10036 bytes