Malicious PDF — malware analysis report

Static analysis result for SHA-256 d77c3c45f2158c3c…

MALICIOUS

PDF

78.9 KB Created: 2020-09-19 03:24:36 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: af8ba2b60ca8f882b1b59f74a4be325e SHA-1: ca95fb82efa729127b1b4876bba02e6dcb10bd1d SHA-256: d77c3c45f2158c3c350c50d85e680a87bd1401f005c56887a9cd3bceab7c3a90
150 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.me/wix?keyword=wow+vanilla+healing+addons'. Additionally, it exhibits characteristics of a PDF link farm, with numerous external links, suggesting an attempt to manipulate search engine results or distribute malicious content. The document body, though heavily obfuscated, also contains the same malicious URL, reinforcing the phishing or redirection intent.

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=wow+vanilla+healing+addons
    • https://3628ee1f-ffc2-4ed0-9f7e-78ad57769be1.filesusr.com/ugd/3f80ec_e9b502782f854915a855bbde7d6f3a13.pdf?index=true
    • https://485d2aad-5aa3-44c6-8ee5-7e00a31c69e1.filesusr.com/ugd/668a47_9d70a07e961e4e3e84b41cf16a5fa454.pdf?index=true
    • https://8fff7872-f874-4c06-a841-abded75310ec.filesusr.com/ugd/bbd3cf_e449cb235d7649a68b81490eed5143e4.pdf?index=true
    • https://44dff1e7-5afe-4066-af27-14e26ec8bc7e.filesusr.com/ugd/ce77c6_32ae1217131a462bb023bc28e60a3179.pdf?index=true
    • https://44a33626-d04c-4101-80be-3bfbc815395e.filesusr.com/ugd/724fb5_a68a966583694b0ba7837e4237e506a4.pdf?index=true
    • https://cdn.shopify.com/s/files/1/0435/8009/6667/files/cadbury_worm_case_study.pdf
    • https://cdn.shopify.com/s/files/1/0429/1349/7247/files/distance_and_midpoint_practice_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/7441/2949/files/piwolodirulidixunapi.pdf
    • https://cdn.shopify.com/s/files/1/0439/9369/4366/files/zevoladotegufepevij.pdf
    • https://d90b344f-ddcc-499d-bc38-72912d223250.filesusr.com/ugd/59deca_8647cab08372480a8c78eccf8df3c58a.pdf?index=true
    • https://1d270027-ca08-4af3-ad8d-b4b511762df3.filesusr.com/ugd/b73feb_5d2b8ae977864977be56633c883c8ca8.pdf?index=true
    • https://85dca47c-7fbf-422c-8c4b-8ae58e378cca.filesusr.com/ugd/704566_78af5cea16f844a1a0d2a92fac27f62d.pdf?index=true
    • https://9521b4ac-fd85-47b6-a6b8-82eebae47ac9.filesusr.com/ugd/baef12_1812975192914919989cf78d858e14a5.pdf?index=true
    • https://f3b8353c-6817-4eea-8a06-7f933ff72104.filesusr.com/ugd/e3325f_3e015bed0ac6436b9b446bd155ccd2c6.pdf?index=true
    • https://b7d7ffa1-5335-4062-af3f-fc3ea4af8dc9.filesusr.com/ugd/003b86_26b186966f224fa0b8e752a34638d9ca.pdf?index=true
    • https://e842546b-2682-4eff-a6be-dc2eb72dfff9.filesusr.com/ugd/948cea_1bc2a1de92e14b85b42ada7e46b341fa.pdf?index=true
    • https://2f59e4dc-ca44-40c2-bf93-d710c3bde73e.filesusr.com/ugd/9b7d8a_1c3a5a415dc34b9bb60cd7e601fe1a3a.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_off0000ecd3.bin
bfce6899e1e7cef3945492d5f26e937f239edcde453e2d70b86b5f91b2a43423		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECD3 5156 bytes
font_01_sfnt_off0000fe74.bin
c7ac4d7d23fc150c800dc6522df53880a684136a8c0abd67d1455bd1cddd132e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE74 15176 bytes

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