Malicious PDF — malware analysis report

Static analysis result for SHA-256 c7f361c40d99afea…

MALICIOUS

PDF

45.2 KB Created: 2020-08-15 01:40:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b21ad34758f3b08706f96c29bc003350 SHA-1: d0638e3ccbc880479295b269183c519fdeefde7a SHA-256: c7f361c40d99afea158cf24357003c5d5b91de3fa270b4f39a70a95b29c46b68
150 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, pointing to 'ttraff.com'. The document body, though heavily obfuscated, also contains this URL and numerous other links, many of which point to potentially malicious domains. The presence of a link farm and a malicious redirector suggests a phishing or malware distribution attempt.

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=modern+business+letterhead+free
    • http://warometot.wildandrealretreats.com/uploads/1/3/1/8/131856214/7726235.pdf
    • http://mepeduwe.myveganmorocco.com/uploads/1/3/1/4/131453384/jewavabizuxebagi.pdf
    • http://files.celestepedri.ca/uploads/1/3/1/3/131380467/9355686.pdf
    • http://bevev.berrienbaseball.com/uploads/1/3/1/4/131406717/tirowoj.pdf
    • https://cdn.shopify.com/s/files/1/0439/1705/0008/files/16654074013.pdf
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/1791464311.pdf
    • https://cdn.shopify.com/s/files/1/0435/7265/8335/files/sarvam_la_la_la_music.pdf
    • https://cdn.shopify.com/s/files/1/0445/3462/8516/files/genpact_technical_support_interview_questions_and_answers.pdf
    • https://cdn.shopify.com/s/files/1/0429/1140/0102/files/les_carbamates.pdf
    • https://cdn.shopify.com/s/files/1/0437/9947/8434/files/toshiba_recovery_wizard.pdf
    • https://cdn.shopify.com/s/files/1/0437/7998/1470/files/girl_guides_promise.pdf
    • https://cdn.shopify.com/s/files/1/0427/4988/6620/files/deficiencia_da_vitamina_b12.pdf
    • https://cdn.shopify.com/s/files/1/0434/2854/4668/files/gigenonuguwu.pdf
    • https://cdn.shopify.com/s/files/1/0430/1442/2677/files/c_string_programs.pdf
    • https://cdn.shopify.com/s/files/1/0440/7679/4021/files/xuvusoxonowetejixubapaza.pdf
    • https://cdn.shopify.com/s/files/1/0436/2502/1603/files/extraction_of_iron_using_blast_furnace.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_off00007464.bin
072d2915380282ae50a07b0f496716f09a7b46cf4ecb90514c692e8b015a76e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7464 5140 bytes
font_01_sfnt_off000085da.bin
f7f7a2e1462a717da8a1ca320309bcb21f51d52f3adc84ab9049240c9439cf05		 pdf-font-stream PDF embedded font (sfnt) at offset 0x85DA 10012 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.