Malicious PDF — malware analysis report

Static analysis result for SHA-256 9826963bf1850e5a…

MALICIOUS

PDF

46.4 KB Created: 2020-09-21 01:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad907047c2a94c572fbe1caabf67c20d SHA-1: bf54806281329928a2a4db89e1a6daaad5dd67b1 SHA-256: 9826963bf1850e5aca42a41295ec9bb89237dd189a3100d37c63f8727bdedd91
150 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 pointing to 'ttraff.me'. Additionally, it exhibits characteristics of a PDF link farm, with numerous links, many hosted on Shopify. The document body and embedded artifacts are obfuscated or truncated, preventing deeper analysis of script intent. The primary attack vector appears to be social engineering via a deceptive link.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=dvdrip+latino+toy+story+4
    • https://343d979d-eaf8-4399-a517-32584ab8fc3e.filesusr
    • https://cdn.shopify.com/s/files/1/0438/9139/2664/files/port_authority_red_line.pdf
    • https://cdn.shopify.com/s/files/1/0435/0276/4184/files/diwimodesavuxivufug.pdf
    • https://cdn.shopify.com/s/files/1/0429/2952/0796/files/windows_7_activator_all_versions.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2445/files/bawesomexafajezebawuleno.pdf
    • https://cdn.shopify.com/s/files/1/0428/5802/1027/files/metodos_anticonceptivos_quimicos.pdf
    • https://cdn.shopify.com/s/files/1/0432/8770/7804/files/32029022838.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/vividoteruxifonovujoli.pdf
    • https://03ad0f67-5061-4e6d-977e-fbd18ecd1e20.filesusr.com/ugd/b90ba1_eb0981da25b14b0c8429e6e3dc964102.pdf?index=true
    • https://e843d5ce-fb03-411b-bc4c-9332a8ebf18b.filesusr.com/ugd/681527_088ec168c1c54ddab432434b11df9bbb.pdf?index=true
    • https://11e702c9-a7ce-46f3-946b-9a02a668375a.filesusr.com/ugd/592671_9356aed82c194504b5bb927a5e067daf.pdf?index=true
    • https://670cdd72-aea3-4b2d-b7f0-39e84069a2c9.filesusr.com/ugd/8e1900_bca0035f1d074edba69591b4f681d382.pdf?index=true
    • https://60fb6daa-e43e-4bb6-b739-fdf957ec4f6e.filesusr.com/ugd/3724a2_d963b201876748219b87c334ded3c8ac.pdf?index=true
    • https://2e30fdad-84b0-4b15-903f-c6f2247a513a.filesusr.com/ugd/4fea5c_f05ef133c2e84649b571d8da15b83b42.pdf?index=true
    • https://95055383-de4d-45d8-b062-63b39386e869.filesusr.com/ugd/1f6d71_00c4f4d3509f4e64ba92f7a002053c3d.pdf?index=true
    • https://343d979d-eaf8-4399-a517-32584ab8fc3e.filesusr.com/ugd/6924eb_a10d91b4d0b442149f0491923573bf93.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 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005c76.bin
51c8e76250bea1cee094d55a8694ae803a6d8d3ca84a13d6775f68de7c502f7c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C76 4888 bytes
font_01_sfnt_off00006d49.bin
75573f28803079d3d88624499f64d3ae6723416d8a5ab948e038008a1df566c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D49 5200 bytes
font_02_sfnt_off00007f1b.bin
4124f772d75de2e757d66273de45ab67d1472cce93aafc68bf24d7cdb8923c6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7F1B 1964 bytes
font_03_sfnt_off00008874.bin
9432d0764d26bed09eb7e4e5c8d1a9a58c49488b842bbc979e7cbee9eefa3d6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8874 10488 bytes

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