Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9d62868b7bbfd8b…

MALICIOUS

PDF

47.2 KB Created: 2020-08-11 14:31:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1ab322c056da8a9708e4af5ea130ca58 SHA-1: 407871d5b643d9f0ec5fcccdc54c957f8b4a3787 SHA-256: c9d62868b7bbfd8bcd6367962148b3ef5d4c0ddd6dabfb1b1c01eb955d0402ef
168 Risk Score

Malware Insights

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

The PDF file contains embedded links that point to a malicious redirector, identified by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains text suggesting it's a 'Presentation letter example pdf'. The PDF_SEO_LINK_FARM heuristic indicates a large number of external PDF links, likely for SEO manipulation or to host further malicious content. The SE_ADVANCE_FEE_SCAM_LURE heuristic suggests a social engineering tactic related to advance-fee fraud.

Heuristics 5

  • 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.
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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=presentation+letter+example+pdf
    • http://vuroxu.tattletalesboutique.com/uploads/1/3/1/3/131398560/9646347.pdf
    • http://files.ddfefit.com/uploads/1/3/1/3/131378918/4d5902fdbb6cc5a.pdf
    • http://zaxoriz.hoaks4wheeldrive.com/uploads/1/3/2/3/132303382/fba0245b9.pdf
    • http://kivizava.easternloudounwrestling.org/uploads/1/3/1/3/131380213/nasuwekodepit.pdf
    • https://cdn.shopify.com/s/files/1/0431/6289/4498/files/lag_spikes_league_of_legends.pdf
    • https://cdn.shopify.com/s/files/1/0435/2393/2311/files/noweneve.pdf
    • https://cdn.shopify.com/s/files/1/0433/1975/4907/files/41409469969.pdf
    • https://cdn.shopify.com/s/files/1/0431/8363/6644/files/army_technical_manuals.pdf
    • https://cdn.shopify.com/s/files/1/0430/4853/4167/files/anatomie_humaine.pdf
    • https://cdn.shopify.com/s/files/1/0428/8220/3801/files/23572489854.pdf
    • https://cdn.shopify.com/s/files/1/0435/7862/2111/files/define_data_analysis_in_research.pdf
    • https://cdn.shopify.com/s/files/1/0432/9131/2288/files/lukozitedadoki.pdf
    • https://cdn.shopify.com/s/files/1/0434/5672/5153/files/52431759988.pdf
    • https://cdn.shopify.com/s/files/1/0436/2783/9641/files/betesowadumivadan.pdf
    • https://cdn.shopify.com/s/files/1/0430/6740/8535/files/dusokesun.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_off00007baa.bin
fde5fe35c82339c90617a3c5b13246bc9a9eaffb1eea7c00dd38221a9514ae02
pdf-font-stream PDF embedded font (sfnt) at offset 0x7BAA 5256 bytes
font_01_sfnt_off00008d6f.bin
654c5cae69f7d9028acd01bcf4a4f5477311d67fa5a723e3069845f2f07ff026
pdf-font-stream PDF embedded font (sfnt) at offset 0x8D6F 10156 bytes