Malicious PDF — malware analysis report

Static analysis result for SHA-256 f26fecf3d6eecaaa…

MALICIOUS

PDF

43.8 KB Created: 2020-08-09 22:03:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 44dd967bc3373450cb11ebe3bd52732d SHA-1: 15972105efcbd48ff01d359e0fbf6ff2390c5d42 SHA-256: f26fecf3d6eecaaa143766042101c33206497af361d6f6473e03d1164f621d6b
120 Risk Score

Malware Insights

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

The PDF contains a heuristic firing for a malicious redirector link, which points to a URL designed to trick users into downloading content. The document body and embedded links also indicate a lure for a manual download, further supporting the phishing attempt. The primary malicious IOC is the redirector URL, which is designed to lead users to malicious content.

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=advanced+cardiovascular+life+support+provider+manual+pdf+download
    • http://files.portablewallhanger.com/uploads/1/3/1/1/131163879/tupinedalirerud.pdf
    • http://files.ppuneet.com/uploads/1/3/1/3/131398143/7465051.pdf
    • http://files.greensbororoadchurchofchrist.com/uploads/1/3/2/7/132710679/rerududetanifenexa.pdf
    • http://files.corefitathletics.com/uploads/1/3/1/0/131070291/pibapiwel_mimofavakipux.pdf
    • https://cdn.shopify.com/s/files/1/0433/8896/0933/files/88136724843.pdf
    • https://cdn.shopify.com/s/files/1/0429/2804/6233/files/neliwuzafo.pdf
    • https://cdn.shopify.com/s/files/1/0437/1002/1787/files/viwarage.pdf
    • https://cdn.shopify.com/s/files/1/0440/5297/1685/files/analysis_of_transport_phenomena_deen.pdf
    • https://cdn.shopify.com/s/files/1/0436/0696/6429/files/16175383198.pdf
    • https://cdn.shopify.com/s/files/1/0432/5664/3739/files/15076147847.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/3100392900.pdf
    • https://cdn.shopify.com/s/files/1/0434/6318/0438/files/career_coaching_workbook.pdf
    • https://cdn.shopify.com/s/files/1/0431/7439/6063/files/82033092165.pdf
    • https://cdn.shopify.com/s/files/1/0431/3304/2839/files/61544366495.pdf
    • https://cdn.shopify.com/s/files/1/0431/5168/7848/files/zatigiwanesaxamo.pdf
    • https://cdn.shopify.com/s/files/1/0428/4288/2215/files/zeluvamubanapesedajem.pdf
    • https://cdn.shopify.com/s/files/1/0431/9395/8560/files/24641368979.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_off00006cc4.bin
cd01fe9e06cef6862a02ffb72ff2cd969fff676ff5724580390f37511e1371b2
pdf-font-stream PDF embedded font (sfnt) at offset 0x6CC4 5440 bytes
font_01_sfnt_off00007f47.bin
817392482a5f3faec60507cc0528e07866aa486b71f71b7d61a81eb61e1d558c
pdf-font-stream PDF embedded font (sfnt) at offset 0x7F47 10620 bytes