Malicious PDF — malware analysis report

Static analysis result for SHA-256 f4e75daeb68701f3…

MALICIOUS

PDF

77.1 KB Created: 2020-08-18 17:03:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89ae507e0dac981b1623af37df9d1260 SHA-1: 6c3fdd423b3f92928f983e9b20a5b38212f823e9 SHA-256: f4e75daeb68701f3dbe710ff0e68ac5440673cf843d94f3e23ec9607a2dd54f6
120 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.com/pify?keyword=simone+de+beauvoir+ethics+of+ambiguity+pdf'. This indicates the document's primary purpose is to redirect users to malicious infrastructure. Additionally, the PDF exhibits characteristics of a link farm, embedding numerous external PDF links, many of which host benign content but are likely used to mask the malicious redirector. No scripts were extracted from this sample.

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/pify?keyword=simone+de+beauvoir+ethics+of+ambiguity+pdf
    • http://palidij.agricolacuvelier.com/uploads/1/3/1/4/131454151/df9bc443b.pdf
    • http://teletulaz.davidhdenton.com/uploads/1/3/0/7/130775286/sinaxoxereduwagek.pdf
    • http://files.sugarheal.com/uploads/1/3/1/3/131379540/7869459.pdf
    • http://files.jazzybobbins.com/uploads/1/3/1/1/131164572/zutuxeteju.pdf
    • https://cdn.shopify.com/s/files/1/0437/6569/4613/files/44410392768.pdf
    • https://cdn.shopify.com/s/files/1/0434/8228/4194/files/28227094746.pdf
    • https://cdn.shopify.com/s/files/1/0428/3603/3695/files/advanced_analytics_with_spark_sandy_ryza.pdf
    • https://cdn.shopify.com/s/files/1/0430/0803/2922/files/kuwafa.pdf
    • https://cdn.shopify.com/s/files/1/0433/6173/0719/files/jutokokiziruwozu.pdf
    • https://cdn.shopify.com/s/files/1/0439/2216/1832/files/36020381053.pdf
    • https://cdn.shopify.com/s/files/1/0434/2287/5797/files/51084417105.pdf
    • https://cdn.shopify.com/s/files/1/0431/9051/7911/files/sat_math_no_calculator_section.pdf
    • https://cdn.shopify.com/s/files/1/0433/6805/4940/files/8178378488.pdf
    • https://cdn.shopify.com/s/files/1/0439/2232/5672/files/electronics_and_communication_book_free.pdf
    • https://cdn.shopify.com/s/files/1/0431/1531/5351/files/le_nouvel_allons_y_1_megolds.pdf
    • https://cdn.shopify.com/s/files/1/0437/3459/7784/files/xobazakulig.pdf
    • https://cdn.shopify.com/s/files/1/0434/6196/8025/files/roxonijiz.pdf
    • https://cdn.shopify.com/s/files/1/0433/7975/3109/files/49297997977.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/95509007145.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/

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000deea.bin
a5cc902cbbea4a34ff6265b09c8dab40e6a28a22439f36bc2ecd9c98b6cf0d29
pdf-font-stream PDF embedded font (sfnt) at offset 0xDEEA 5940 bytes
font_01_sfnt_off0000f2f4.bin
a28c0568f0a633c897cabf3baeeb9e436a77bd04e14dda05dbe0622674936894
pdf-font-stream PDF embedded font (sfnt) at offset 0xF2F4 16920 bytes