Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc65d36089e484af…

MALICIOUS

PDF

29.2 KB Created: 2020-09-16 18:49:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 76f690dfc988c5f2b8cee49d1c7d103f SHA-1: c158d32e2c7a6fb3c30373d40d570895f29af5e4 SHA-256: dc65d36089e484afc89deaf8a63e0371b79a28a21ff0c60548dbc973416838cc
140 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious Link

The PDF exhibits characteristics of a phishing lure, including being image-heavy with minimal text and containing a click-outward action. It links to known malicious redirector infrastructure, specifically 'https://ttraff.me/wix?keyword=graco+4ever+all+in+one+manual', which likely serves as the initial point of compromise. The document also hosts a link farm of other PDF files, suggesting a broader campaign to distribute malicious content.

Heuristics 4

  • 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.
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 29 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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=graco+4ever+all+in+one+manual
    • http://gugisas.maryskibaschoolofdance.com/uploads/1/3/0/7/130738970/rukokis.pdf
    • http://bumibezo.nejcrwc.com/uploads/1/3/0/7/130739235/kamikifo.pdf
    • http://files.julianjrobinson.com/uploads/1/3/0/7/130774965/josib.pdf
    • http://raduri.communityprepalumni.com/uploads/1/3/0/9/130969724/3441496.pdf
    • http://bobumuwe.allimagesonline.com/uploads/1/3/0/9/130969707/d2ba81b.pdf
    • http://wuvode.thesecrettohealthyliving.com/uploads/1/3/1/3/131379641/6350536.pdf
    • https://cdn.shopify.com/s/files/1/0432/2436/7262/files/allah_names_99.pdf
    • https://cdn.shopify.com/s/files/1/0428/8738/1155/files/75423029362.pdf
    • https://42791335-f4df-420f-8da5-0612e28b2caf.filesusr.com/ugd/2f3ac6_e9b48a575eac493aaec0909185cb1854.pdf?index=true
    • https://2bf221d2-f1e2-4ca4-a0c7-2c4525aca948.filesusr.com/ugd/18ee90_020c16c5bd634abea3687cb2b55ac6ab.pdf?index=true
    • https://dd38fc16-50f8-48a5-9902-bdfa7b7e72bc.filesusr.com/ugd/724fb5_947bfbce1e52464bb2935a71ace56020.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_off00003e6d.bin
2371fc5c459c94ef96233922d9287a553cec1ac140690588de30bd641f6f30dd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3E6D 4944 bytes
font_01_sfnt_off00004f37.bin
793dd45f275d915216e39609149044d5b0e9589eef97a1dacc093ac78750570e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4F37 7540 bytes

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