Malicious PDF — malware analysis report

Static analysis result for SHA-256 e8869dbd57a54ae5…

MALICIOUS

PDF

46.1 KB Created: 2020-08-02 17:13:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 542a1ab041564df44534e87d00f639c2 SHA-1: 20bc2132be568bd80cc89a95859fdecfe093f392 SHA-256: e8869dbd57a54ae5c2b475550cbf194c9508f8c07fcb60b6874944376dac9320
120 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many pointing to Shopify domains, but one critical link directs to a known malicious redirector. The document body, though heavily obfuscated, contains the URL https://ttraff.com/wb?keyword=verb%20to%20be%20explained%20pdf, which is flagged as malicious. This suggests a phishing or scam attempt where the user is tricked into visiting a malicious site.

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.com/wb?keyword=verb%20to%20be%20explained%20pdf
    • http://files.maniacgirls.com/uploads/1/3/1/4/131437726/tozeja-filabokomatineb-kigut.pdf
    • http://files.theculturedmushroom.com/uploads/1/3/2/7/132710497/109cc87599b62e.pdf
    • http://files.thesexminister.com/uploads/1/3/1/4/131453268/16e23.pdf
    • https://cdn.shopify.com/s/files/1/0432/4527/3248/files/gezefo.pdf
    • https://cdn.shopify.com/s/files/1/0429/6084/7004/files/cookie_clicker_save_files.pdf
    • https://cdn.shopify.com/s/files/1/0429/8165/4691/files/9349741940.pdf
    • https://cdn.shopify.com/s/files/1/0431/2200/0029/files/61454851874.pdf
    • https://cdn.shopify.com/s/files/1/0432/9842/2934/files/wabululutuka.pdf
    • https://cdn.shopify.com/s/files/1/0427/8360/4903/files/28245956001.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/37144816260.pdf
    • https://cdn.shopify.com/s/files/1/0433/4285/6344/files/xevidoroxusuv.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/mojedisubeweful.pdf
    • https://cdn.shopify.com/s/files/1/0433/7218/3703/files/95603283730.pdf
    • https://cdn.shopify.com/s/files/1/0434/7772/9430/files/texinituwepemelabu.pdf
    • https://cdn.shopify.com/s/files/1/0432/5461/2123/files/60818254356.pdf
    • https://cdn.shopify.com/s/files/1/0440/9019/6133/files/79603119808.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_off00007823.bin
fe89fd38df29326742f8413caa0cab16b9b1fa06e90abbdc7fe08cd1dda4b5e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7823 5032 bytes
font_01_sfnt_off00008952.bin
2b400095482a50ef14f2b2d4e99be8a71cbd0046a34a0e3d0e01f104a3dc8a47		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8952 10060 bytes

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