Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ec5015eb83d797…

MALICIOUS

PDF

47.7 KB Created: 2020-08-25 03:46:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a7d046452c63a5fc0194aeedd76100ef SHA-1: 20f2af1bec852fc47639c1e0e2d0466c455eefa6 SHA-256: 92ec5015eb83d7978be24187cf4800a3425de1fa5451ef36db31235754171f25
150 Risk Score

Malware Insights

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

The PDF contains a high number of embedded links, many pointing to domains associated with link farms and redirectors, such as 'ttraff.cc'. The document body, though heavily obfuscated, contains the URL 'https://ttraff.cc/pify?keyword=pdf+bestand+verkleinen+photoshop', indicating a likely phishing or malware delivery attempt. The presence of numerous external links, including those hosted on Shopify, suggests an attempt to obscure the true malicious destination or to leverage SEO tactics for distribution.

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.cc/pify?keyword=pdf+bestand+verkleinen+photoshop
    • http://files.worldwildlifeweb.net/uploads/1/3/2/7/132710787/dc1f22d824c9.pdf
    • http://files.rebekahleach.com/uploads/1/3/1/0/131071067/wutawuk_kikuf.pdf
    • http://files.zoroastriankids.com/uploads/1/3/1/3/131378899/dc3df55cf40661.pdf
    • https://cdn.shopify.com/s/files/1/0436/2030/3011/files/genoxapugigaliz.pdf
    • https://cdn.shopify.com/s/files/1/0433/0242/0644/files/48549566613.pdf
    • https://cdn.shopify.com/s/files/1/0431/5856/9128/files/git_submodule_remove.pdf
    • https://cdn.shopify.com/s/files/1/0430/8631/5684/files/metabolic_disorders_of_bone.pdf
    • https://cdn.shopify.com/s/files/1/0432/3019/9966/files/8757937677.pdf
    • https://cdn.shopify.com/s/files/1/0431/2498/1921/files/international_accounting_standards_5.pdf
    • https://cdn.shopify.com/s/files/1/0435/4487/1063/files/limexekutere.pdf
    • https://cdn.shopify.com/s/files/1/0429/5717/6986/files/17641015302.pdf
    • https://cdn.shopify.com/s/files/1/0465/9511/3125/files/metric_conversions_using_dimensional_analysis_worksheet_answers.pdf
    • https://cdn.shopify.com/s/files/1/0436/9340/8409/files/42744858721.pdf
    • https://cdn.shopify.com/s/files/1/0430/7812/3680/files/glioblastoma_multiforme_peer_review_articles.pdf
    • https://cdn.shopify.com/s/files/1/0430/8579/1393/files/2152448759.pdf
    • https://cdn.shopify.com/s/files/1/0434/3909/5973/files/bajrang_bali_dj_song_in_telugu.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007a0e.bin
519b0f34217c4491eb81584a6c0a1db0fe589ad5b43ec7c0c4630121e37afa6a
pdf-font-stream PDF embedded font (sfnt) at offset 0x7A0E 5392 bytes
font_01_sfnt_off00008c59.bin
cb52d3b0a48f8a79e3650ebc5eca0ee121fe01e488a5507f2636777175ef8d35
pdf-font-stream PDF embedded font (sfnt) at offset 0x8C59 11104 bytes