Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e9d3e25f377c3b2…

MALICIOUS

PDF

41.2 KB Created: 2020-09-01 11:46:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b0e16a9d7c4424f0833e42cec595aa35 SHA-1: 5f0c78c8af7f50eea6ba2cfa8aece9cb3fdbb419 SHA-256: 1e9d3e25f377c3b21f69b187b39b02a83ff93926255157a9d9d97593470dc2fc
128 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 Command and Scripting Interpreter: PowerShell

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body, though heavily obfuscated, contains text related to 'corrective action form template excel' and includes the malicious redirector URL. This suggests a phishing attempt designed to trick users into clicking the link, likely leading to a malicious download or further compromise. No scripts were extracted, limiting the analysis of direct execution behavior.

Heuristics 4

  • 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.
  • 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.link/wix?keyword=corrective+action+form+template+excel
    • https://static.usrfiles.com/ugd/79cb75_64cc96504511477bbcf0bf6ba7877739.pdf
    • https://static.usrfiles.com/ugd/625844_ce40b19d872640bdbaff36f121e0d944.pdf
    • https://static.usrfiles.com/ugd/90c678_dffe3dbb85a946daa4e2a34d3b337268.pdf
    • https://static.usrfiles.com/ugd/b8c837_720f27dbbeea4f4584d63ef9ccc4cf04.pdf
    • https://cdn.shopify.com/s/files/1/0435/9333/4947/files/adaptive_reuse_extending_the_lives_of_buildings.pdf
    • https://cdn.shopify.com/s/files/1/0430/6809/6661/files/write_acknowledgement_for_a_survey_report.pdf
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/jitokabejur.pdf
    • https://cdn.shopify.com/s/files/1/0428/9508/1625/files/80698057720.pdf
    • https://cdn.shopify.com/s/files/1/0427/7056/3239/files/10736941534.pdf
    • https://cdn.shopify.com/s/files/1/0429/8807/7209/files/60405985367.pdf
    • https://cdn.shopify.com/s/files/1/0434/5020/4316/files/daxupetesike.pdf
    • https://cdn.shopify.com/s/files/1/0432/4062/0200/files/gutoviza.pdf
    • https://cdn.shopify.com/s/files/1/0463/0410/0514/files/linear_functions_domain_and_range_worksheet.pdf
    • https://cdn.shopify.com/s/files/1/0429/9302/5183/files/xosofanozewamilepu.pdf
    • https://cdn.shopify.com/s/files/1/0429/3004/5091/files/50513344079.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_off0000651c.bin
b466ccee4e92b3dd1e7e93402a49b7253fb20f50282ee687eebf4f08ff3bac74
pdf-font-stream PDF embedded font (sfnt) at offset 0x651C 5016 bytes
font_01_sfnt_off00007628.bin
2c2e1f79a457483fe0ae86910d9eaec4062fa5cea3e7daa8cee60d602506c86e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7628 9872 bytes