Malicious PDF — malware analysis report

Static analysis result for SHA-256 9704973d8e41139f…

MALICIOUS

PDF

42.0 KB Created: 2020-08-25 03:25:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b8d9c8dbc97ed13d92a9e5ce2df9c4fd SHA-1: cbf607796a5f60e2db5d45a9e63caace8c929b01 SHA-256: 9704973d8e41139f49730948416bcc2d9c0a60ed2931a8ca5c8a957ac33d80b6
150 Risk Score

Malware Insights

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

The PDF contains embedded links, with one pointing to a known malicious redirector at 'https://ttraff.com/pify?keyword=dns+amplification+attack+tool'. The document body, though heavily obfuscated, contains text related to 'Dns amplification attack tool' and references the redirector URL. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' confirms the malicious nature of the redirector. The presence of numerous external PDF links, as flagged by 'PDF_SEO_LINK_FARM', suggests a tactic to distribute malicious content or engage in SEO manipulation for phishing.

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=dns+amplification+attack+tool
    • http://files.davidhixoncounseling.com/uploads/1/3/2/6/132680860/kenudazad.pdf
    • http://nijonan.fiatclubact.org/uploads/1/3/1/6/131606677/b6009c21b8084.pdf
    • http://tilonubep.tiltedhaggissoap.com/uploads/1/3/2/8/132814930/kibanikejupaw-zewixogefola-fosuja.pdf
    • https://cdn.shopify.com/s/files/1/0431/6043/6900/files/skill_gap_analysis_excel_template.pdf
    • https://cdn.shopify.com/s/files/1/0434/7074/9861/files/47197959143.pdf
    • https://cdn.shopify.com/s/files/1/0434/8408/6424/files/bituzuzituvutotaleb.pdf
    • https://cdn.shopify.com/s/files/1/0433/3505/7559/files/52897907202.pdf
    • https://cdn.shopify.com/s/files/1/0436/8600/2843/files/brobar_boli_nimrat_khaira_new_song.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/xokuwunojuvilil.pdf
    • https://cdn.shopify.com/s/files/1/0433/6009/2315/files/funanunozeva.pdf
    • https://cdn.shopify.com/s/files/1/0431/2072/2080/files/verifica_analisi_logica_con_soluzioni.pdf
    • https://cdn.shopify.com/s/files/1/0429/8063/8879/files/fenogozimifapajujuxibo.pdf
    • https://cdn.shopify.com/s/files/1/0432/8960/8360/files/science_experiment_report_sample.pdf
    • https://cdn.shopify.com/s/files/1/0428/2214/0070/files/miguxodofesugak.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_off000061a0.bin
b255411e023c533376cd460cc034de370afcb4c958c52f7e4dda4de84f4e1ae0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61A0 5128 bytes
font_01_sfnt_off00007300.bin
84aef614b23c952428492947f6488a3e676482d81533248976cf5d22c83d55db		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7300 12616 bytes

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