Malicious PDF — malware analysis report

Static analysis result for SHA-256 eee4453dbdaa34ce…

MALICIOUS

PDF

41.7 KB Created: 2020-08-22 00:50:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44277bdf94d53f5909ad1e6eea0d16cc SHA-1: 890d33fb80f04cf2366098c75d2c762d3e2b5d3a SHA-256: eee4453dbdaa34ce42951791a07f040b5986d9ba62d8a2e2dc48591bfd711bdc
120 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Phishing: Spearphishing Attachment T1200 Hardware Add-in T1059.001 PowerShell

The PDF file contains a link farm with 24 external links, including a critical redirector link to 'https://ttraff.ru/pify?keyword=inverse+bildersuche+android'. This indicates a likely attempt to lure users to malicious infrastructure. The document body is heavily obfuscated, preventing a clear understanding of its specific content, but the presence of numerous links strongly suggests a phishing or redirection-based attack. 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.ru/pify?keyword=inverse+bildersuche+android
    • http://tujugomad.wesselsdancestudio.com/uploads/1/3/0/8/130874388/e40a2cc75dfe0fc.pdf
    • https://cdn.shopify.com/s/files/1/0437/9449/7698/files/73914299145.pdf
    • https://cdn.shopify.com/s/files/1/0436/3337/7440/files/91362702608.pdf
    • https://cdn.shopify.com/s/files/1/0434/1619/1125/files/drayton_wiser_installation_guide.pdf
    • https://cdn.shopify.com/s/files/1/0431/7547/7416/files/zeleginixubowabogevukuto.pdf
    • https://cdn.shopify.com/s/files/1/0428/0510/0711/files/28539420427.pdf
    • https://cdn.shopify.com/s/files/1/0429/5308/0991/files/wevewegaputexaviw.pdf
    • https://cdn.shopify.com/s/files/1/0435/6725/1617/files/lesson_plan_in_english_grade_6.pdf
    • https://cdn.shopify.com/s/files/1/0440/5864/0549/files/low_cholesterol_food_chart.pdf
    • https://cdn.shopify.com/s/files/1/0432/8030/2238/files/roman_catholic_catechism.pdf
    • https://cdn.shopify.com/s/files/1/0428/6241/1942/files/kajijusapokoz.pdf
    • https://cdn.shopify.com/s/files/1/0433/9492/4700/files/lutte_contre_les_acariens.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_off000064a1.bin
50c0e3511a48466ba5e0a9d3798009573794317333669390e6c93c27cedf96a3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A1 5164 bytes
font_01_sfnt_off00007616.bin
11dfe0ccad074c1fd9b86f35eb59aac555b54ec42dbc88e0fbe7b782b42bba27		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7616 11172 bytes

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