Malicious PDF — malware analysis report

Static analysis result for SHA-256 e14c6c738e8ce6ed…

MALICIOUS

PDF

92.6 KB Created: 2020-08-07 22:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1efad10e86451e301a017a6b58f05c90 SHA-1: f4c9cd10b2a8276703baeb6107415b155777ee9f SHA-256: e14c6c738e8ce6ed0395c271f3f9592e8252ff6d86d53f5af7219a9c9827c2f9
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains numerous links, identified as a link farm, with one critical heuristic firing indicating a malicious redirector. The document body, though heavily obfuscated, contains a URL that matches the malicious redirector heuristic. This suggests the PDF is designed to trick users into clicking links that lead to malicious sites, potentially for SEO poisoning or phishing.

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.
  • Fake invoice / payment lure low SE_INVOICE_LURE
    Document contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
  • 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/wb?keyword=bc%20environmental%20management%20act%20pdf
    • http://files.wamuranstanleyrivercricket.com/uploads/1/3/1/4/131482991/rawixegifesor_fizijoli.pdf
    • http://gadij.henriette-hackenberg.com/uploads/1/3/0/8/130874330/mebexavuzekokudeben.pdf
    • http://files.mrgarciaswebsite.com/uploads/1/3/0/9/130969211/kenasoradijiz_rexujo_podawi.pdf
    • http://files.highway417-aviationtohuntclub.com/uploads/1/3/1/6/131636562/6621746.pdf
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/43561311815.pdf
    • https://cdn.shopify.com/s/files/1/0432/0896/6301/files/futigodexogo.pdf
    • https://cdn.shopify.com/s/files/1/0437/8879/6065/files/georgia_pesticide_license.pdf
    • https://cdn.shopify.com/s/files/1/0439/1705/0008/files/wotamofa.pdf
    • https://cdn.shopify.com/s/files/1/0431/9150/0961/files/7990631010.pdf
    • https://cdn.shopify.com/s/files/1/0434/9621/0594/files/38058168614.pdf
    • https://cdn.shopify.com/s/files/1/0435/3576/1567/files/wepokasekizeturenon.pdf
    • https://cdn.shopify.com/s/files/1/0432/5412/0606/files/fuxuz.pdf
    • https://cdn.shopify.com/s/files/1/0431/4100/5480/files/54679322634.pdf
    • https://cdn.shopify.com/s/files/1/0428/2135/3635/files/doveditowidas.pdf
    • https://cdn.shopify.com/s/files/1/0429/0471/5427/files/saluwibofojorefogalari.pdf
    • https://cdn.shopify.com/s/files/1/0438/0216/5410/files/upload_a_to_google_drive.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8665/files/20947695635.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012356.bin
ee1b5c1bce8970b57ca2e7c01ea8d981a17fba6b8161fbe553b0ff84645a4173
pdf-font-stream PDF embedded font (sfnt) at offset 0x12356 5196 bytes
font_01_sfnt_off000134df.bin
12a8d3a5b5bbfac0acdbaca3de10dead24153b66a3f881242c1fb46db1cb2793
pdf-font-stream PDF embedded font (sfnt) at offset 0x134DF 9924 bytes
font_02_sfnt_off000156da.bin
8405bb6ca9a6fb718a2e910e1cdde4d74ac2122cab0061dc5f772322db9c7ccd
pdf-font-stream PDF embedded font (sfnt) at offset 0x156DA 4324 bytes