Malicious PDF — malware analysis report

Static analysis result for SHA-256 92ee796ef4d755d0…

MALICIOUS

PDF

49.3 KB Created: 2020-08-23 01:31:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 72db242eaed51f4fd7a73fcac0a5a6fe SHA-1: b8cb158e777cdd00ad5aaa1f49ae8f8890013286 SHA-256: 92ee796ef4d755d0af7b5f6a0a6ac754048151bf501779703ef98a3112756bce
128 Risk Score

Malware Insights

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

The PDF contains a lure for a "bill of lading example" and embeds numerous links, many of which point to a link farm hosted on cdn.shopify.com. One critical heuristic indicates a malicious redirector link to ttraff.ru, suggesting the document is designed to lead users to malicious sites. The document body, though heavily obfuscated, contains the string "https://ttraff.ru/pify?keyword=bill+of+lading+example+pdf", confirming the redirector's presence and intent. No scripts were extracted from this sample.

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.ru/pify?keyword=bill+of+lading+example+pdf
    • http://files.passerprojects.com/uploads/1/3/1/4/131406356/5e83c33dfe4.pdf
    • http://satosa.alexfullermedia.com/uploads/1/3/2/8/132815176/ganezem.pdf
    • http://files.bpsascoutingmoncton.com/uploads/1/3/0/7/130776478/1ddd0ac8e6.pdf
    • http://files.acuteanglewritez.com/uploads/1/3/2/6/132696512/xuradedot.pdf
    • http://jadoja.stmarksaurora.org/uploads/1/3/1/8/131856373/wizavuw.pdf
    • https://cdn.shopify.com/s/files/1/0466/2801/2197/files/wow_moonkin_form_quest.pdf
    • https://cdn.shopify.com/s/files/1/0435/1682/1672/files/wumuxelurilekobamumorumo.pdf
    • https://cdn.shopify.com/s/files/1/0435/1187/3688/files/asia_map_hd_download.pdf
    • https://cdn.shopify.com/s/files/1/0430/0832/7829/files/zonasejibufovuma.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/26443777516.pdf
    • https://cdn.shopify.com/s/files/1/0459/1733/9797/files/84264974251.pdf
    • https://cdn.shopify.com/s/files/1/0435/3890/7288/files/72085122709.pdf
    • https://cdn.shopify.com/s/files/1/0428/8030/3270/files/98703864060.pdf
    • https://cdn.shopify.com/s/files/1/0448/9232/3995/files/2507583020.pdf
    • https://cdn.shopify.com/s/files/1/0428/0070/9791/files/netokalif.pdf
    • https://cdn.shopify.com/s/files/1/0439/1321/6168/files/jinedosowamigigum.pdf
    • https://cdn.shopify.com/s/files/1/0431/7092/2655/files/idsa_guidelines_viral_meningitis.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_off00008357.bin
59455108bc216ee5c0b1e62e4302da7c78d766fba5588e6c4adf9054091eadd9
pdf-font-stream PDF embedded font (sfnt) at offset 0x8357 5204 bytes
font_01_sfnt_off00009504.bin
6213b63e757fe14f0c2d52d892bf15bc00ff73fd8e4ceecce1648ffd3eb1771d
pdf-font-stream PDF embedded font (sfnt) at offset 0x9504 10440 bytes