Malicious PDF — malware analysis report

Static analysis result for SHA-256 c0259505a78c8f4e…

MALICIOUS

PDF

107.7 KB Created: 2020-07-31 20:47:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e9b430a79bcd5d5b4f66879d22ec3a9d SHA-1: f7aad6488d01d049c34cc495e85b0de90620b3ee SHA-256: c0259505a78c8f4ec99cca1f24b2b486c8872b8404b86921e1863b423580316c
162 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.ru/pify?keyword=abode+flash+11'. Additionally, it exhibits characteristics of a browser extension/update installation lure, indicating a social engineering attempt. The document body, though heavily obfuscated, contains the URL 'https://ttraff.ru/pify?keyword=abode+flash+11', reinforcing the malicious intent. The presence of numerous PDF links suggests an attempt to distribute further malicious content or engage in SEO manipulation.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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.ru/pify?keyword=abode+flash+11
    • http://files.lemoulinetcollection.com/uploads/1/3/0/7/130776795/8872326.pdf
    • http://files.erictigley.com/uploads/1/3/1/3/131384771/kogugazanode.pdf
    • http://files.mirandalarayne.com/uploads/1/3/2/7/132740541/potega.pdf
    • http://files.brasbyconstruction.com/uploads/1/3/2/6/132681456/73706.pdf
    • http://files.woodworkslexington.com/uploads/1/3/2/7/132710783/0ab6400d5af9a0.pdf
    • https://cdn.shopify.com/s/files/1/0433/3672/8726/files/vuxipobedomumupaguzeg.pdf
    • https://cdn.shopify.com/s/files/1/0435/4542/8122/files/78597020778.pdf
    • https://cdn.shopify.com/s/files/1/0431/6702/3253/files/78285518522.pdf
    • https://cdn.shopify.com/s/files/1/0435/0191/2224/files/gipabebaboxagolide.pdf
    • https://cdn.shopify.com/s/files/1/0433/0877/7637/files/11720202300.pdf
    • https://cdn.shopify.com/s/files/1/0429/7854/1722/files/kizetavuvojumafoxuwo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8976/5279/files/74366772402.pdf
    • https://cdn.shopify.com/s/files/1/0431/4886/9786/files/48388820749.pdf
    • https://cdn.shopify.com/s/files/1/0427/6980/9564/files/banalaxi.pdf
    • https://cdn.shopify.com/s/files/1/0432/8285/8144/files/kusikaluni.pdf
    • https://cdn.shopify.com/s/files/1/0432/8469/3160/files/97750084042.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0001409e.bin
86443f8dfadacd3d15bddf7e931dec5e99df10190998207bd1cc29ed1ab6332b
pdf-font-stream PDF embedded font (sfnt) at offset 0x1409E 10160 bytes
font_01_sfnt_off00016235.bin
f501921bd3b49bb731fbc230b80abeccf94dc5d9f436053f9865390088a274db
pdf-font-stream PDF embedded font (sfnt) at offset 0x16235 5080 bytes
font_02_sfnt_off00017382.bin
ef98c187213f47430a6740bf56ab9d45c84f454e225e8b2e004d02a7c802110b
pdf-font-stream PDF embedded font (sfnt) at offset 0x17382 14332 bytes