Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd94f8aab3734642…

MALICIOUS

PDF

41.5 KB Created: 2020-08-14 03:12:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ba20aaee5509b754bdc2019f0a9d4b4b SHA-1: 8f2873ad649a2d38b0b8a41e7b47de6e0a7fd7ca SHA-256: fd94f8aab373464256f5f29923c105424c98eadcde81353c8cbc3ebc8824b7c1
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though heavily obfuscated, contains text related to a '2005 vw beetle owners manual free' and the malicious URL 'https://ttraff.com/pify?keyword=2005+vw+beetle+owners+manual+free'. This suggests a lure to a malicious site, likely for phishing or malware delivery. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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=2005+vw+beetle+owners+manual+free
    • http://xerasomu.juliemorganbooks.com/uploads/1/3/1/4/131438672/8070012.pdf
    • http://derere.my-mediamatters.tech/uploads/1/3/2/6/132682787/sukezulevekekot.pdf
    • http://files.alden-moore.com/uploads/1/3/2/3/132303373/nuguw-wubidosakubikup-ditixedusewogud-zojazupibo.pdf
    • http://files.espin-inc.com/uploads/1/3/1/0/131071067/nigunata-jevipule.pdf
    • https://cdn.shopify.com/s/files/1/0428/2259/8823/files/16100979651.pdf
    • https://cdn.shopify.com/s/files/1/0435/6934/8763/files/11550904949.pdf
    • https://cdn.shopify.com/s/files/1/0434/0426/3585/files/quantitative_aptitude_questions_with_answers_download.pdf
    • https://cdn.shopify.com/s/files/1/0433/4505/1797/files/aviation_english_macmillan_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/1049/0519/files/solving_quadratic_equations_review.pdf
    • https://cdn.shopify.com/s/files/1/0434/5489/0149/files/16034521499.pdf
    • https://cdn.shopify.com/s/files/1/0431/1724/8672/files/96739821827.pdf
    • https://cdn.shopify.com/s/files/1/0429/7755/8681/files/fupogokejo.pdf
    • https://cdn.shopify.com/s/files/1/0430/6557/3537/files/neet_chemistry_syllabus_2020.pdf
    • https://cdn.shopify.com/s/files/1/0428/6342/7751/files/ejemplo_de_proyecto_de_grado.pdf
    • https://cdn.shopify.com/s/files/1/0431/5090/1402/files/54098971372.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_off000054d0.bin
e98394f331621258c4e53c8ada28bc40e62788dfa5ff4fe754eb8f0c36540f56
pdf-font-stream PDF embedded font (sfnt) at offset 0x54D0 5340 bytes
font_01_sfnt_off000066e8.bin
4a1d8399ca7d9ec9798c48a53b0de9295cf22b7f6b94b1653b68f746685e6a60
pdf-font-stream PDF embedded font (sfnt) at offset 0x66E8 10504 bytes
font_02_sfnt_off00008ad8.bin
9f355172d696dda274cac500966718f112ce76951f19577ac4888987ea6471b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x8AD8 4324 bytes