Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f08258ca886c68c…

MALICIOUS

PDF

45.3 KB Created: 2020-08-01 10:40:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 803106f529646a36fd1f0a8b269d5ca2 SHA-1: a8d1f8fdb2a8f22c2ce5d8d822e666b40c09f979 SHA-256: 8f08258ca886c68ca50e03ad73e17184f09397d426b61124708f00133263a374
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=logitech+marble+mouse'. This URL is embedded within the document body, suggesting a social engineering lure to trick users into clicking it. The PDF also exhibits characteristics of a link farm, with numerous embedded links to other PDFs, many hosted on Shopify. The primary malicious URL is the most critical IOC.

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.ru/pify?keyword=logitech+marble+mouse
    • http://files.madebeautifulby.com/uploads/1/3/2/7/132740361/2099966.pdf
    • http://files.theclaypen.com/uploads/1/3/1/4/131408245/damisidoju.pdf
    • http://files.classicsenglishliterature.com/uploads/1/3/0/7/130738714/2935686.pdf
    • https://cdn.shopify.com/s/files/1/0440/6139/3046/files/lesofafivebokuzisosu.pdf
    • https://cdn.shopify.com/s/files/1/0434/1497/8718/files/pedujase.pdf
    • https://cdn.shopify.com/s/files/1/0436/3298/4222/files/faluvamiriselojugusabar.pdf
    • https://cdn.shopify.com/s/files/1/0429/6415/6582/files/20306646167.pdf
    • https://cdn.shopify.com/s/files/1/0431/2694/7989/files/283526322.pdf
    • https://cdn.shopify.com/s/files/1/0432/0156/0737/files/fawokubuw.pdf
    • https://cdn.shopify.com/s/files/1/0428/8980/5983/files/94908716025.pdf
    • https://cdn.shopify.com/s/files/1/0431/0673/0138/files/xikadakozamavagasozusaf.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/wuvinotagug.pdf
    • https://cdn.shopify.com/s/files/1/0429/5681/6540/files/ditugufukakukexezixu.pdf
    • https://cdn.shopify.com/s/files/1/0435/9946/2558/files/61434805520.pdf
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/files/dotties_weight_loss.pdf
    • https://cdn.shopify.com/s/files/1/0436/2331/7662/files/dutubekerivasedulare.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/
    • https://cdn.shopify.com/s/files/1/0439/3353/2315/fi

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006395.bin
1c361c79c5580b0cda6f23805b649fc6eb4de74ada62417a44a9a54dfdf5c719
pdf-font-stream PDF embedded font (sfnt) at offset 0x6395 5068 bytes
font_01_sfnt_off000074db.bin
6edd0722cfd19937c1d1934694d8e0fafd356bdec43bea95522016a3510ddb86
pdf-font-stream PDF embedded font (sfnt) at offset 0x74DB 10772 bytes
font_02_sfnt_off000099a4.bin
b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c
pdf-font-stream PDF embedded font (sfnt) at offset 0x99A4 4324 bytes