Malicious PDF — malware analysis report

Static analysis result for SHA-256 e2902ae80bf6d314…

MALICIOUS

PDF

48.0 KB Created: 2020-09-09 17:13:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 98f02cd9fc7a52ce5f92896f34cb6a5a SHA-1: 2c998796277303a83ee7e95cd47d4a67c9f9a7cd SHA-256: e2902ae80bf6d3140bd33fd2255fc6d3f64e783e1d3104faab43bb839fda2d2e
150 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains a heuristic firing for a malicious redirector link, which points to 'https://ttraff.me/wix?keyword=low+voltage+transformer+ratings'. This URL is likely part of a phishing or scam campaign designed to trick users into clicking through to a malicious site. The document also contains a large number of embedded links, many of which point to Shopify domains, suggesting an attempt to obscure the malicious redirector or to appear as a legitimate link farm. The ML classifier strongly indicates maliciousness.

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=low+voltage+transformer+ratings
    • http://files.everyview.net/uploads/1/3/0/7/130738971/kigojowutijapon.pdf
    • http://files.buzitsolutions.com/uploads/1/3/0/9/130969742/d6fbec240c.pdf
    • https://cdn.shopify.com/s/files/1/0435/7187/1912/files/75669568517.pdf
    • https://cdn.shopify.com/s/files/1/0439/1606/6971/files/junikexawefebolafu.pdf
    • https://cdn.shopify.com/s/files/1/0436/4405/9806/files/61546389162.pdf
    • https://cdn.shopify.com/s/files/1/0435/8569/9997/files/mapazatevuxizugaxepapiz.pdf
    • https://static.usrfiles.com/ugd/02ccf7_0d630dc273cc42ac805a3f9c84fa28d4.pdf
    • https://static.usrfiles.com/ugd/9b7d8a_ba4c40c6a3b445ad9bf97daa11a2c115.pdf
    • https://static.usrfiles.com/ugd/33c377_ed116803bf9f484a93d46131b530aa54.pdf
    • https://cdn.shopify.com/s/files/1/0439/1557/5464/files/agricultural_revolution_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0463/1258/7429/files/bob_marley_songs_masstamilan.pdf
    • https://cdn.shopify.com/s/files/1/0431/1475/8293/files/lapibiguwawa.pdf
    • https://cdn.shopify.com/s/files/1/0439/1596/8680/files/english_vocabulary_with_urdu_meaning_and_sentences.pdf
    • https://cdn.shopify.com/s/files/1/0465/2947/8806/files/internet_browser_for_android_tv.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_off00007ed8.bin
828164f13be6c903f08c33aef41d96ebe6545fb37b7daffd9c1f21cd5b160880		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7ED8 5180 bytes
font_01_sfnt_off00009083.bin
54d84fd9467fe539348dbda22a8f3e1ac23af31b09c892a5c4037027653a26ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9083 10128 bytes

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