Malicious PDF — malware analysis report

Static analysis result for SHA-256 bd18c29c8a1adc3a…

MALICIOUS

PDF

38.2 KB Created: 2020-09-01 05:49:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42e620d730e0d2566b58223d4de25561 SHA-1: 4dd995b87af2987f03b8b8048a5b7c2286b9272f SHA-256: bd18c29c8a1adc3af289a07d5789f029d5fa68fef5b6c900d8a439fcccfb8f84
120 Risk Score

Malware Insights

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

The PDF file contains a link to a known malicious redirector infrastructure, disguised as a search result for 'love me collin raye piano sheet music'. The PDF also contains a large number of links to external PDFs, many hosted on static.usrfiles.com, which is flagged as a link farm. The document body is heavily obfuscated but contains the same lure text and the malicious URL. No scripts were extracted from this sample.

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/wix?keyword=love+me+collin+raye+piano+sheet+music
    • https://static.usrfi
    • https://static.usrfiles.com/ugd/b8c837_9ebb990a82c140de998cf1f85cacf811.pdf
    • https://static.usrfiles.com/ugd/52b593_8a0d99088c0649c292ae13053d89af2d.pdf
    • https://static.usrfiles.com/ugd/5360f8_69e28ac1fe22432e98c2b802cf850d51.pdf
    • https://static.usrfiles.com/ugd/78c764_ae162510378b4205826936e09e3f23c0.pdf
    • https://cdn.shopify.com/s/files/1/0436/0221/5074/files/tibuvirowadiwegega.pdf
    • https://cdn.shopify.com/s/files/1/0431/2439/2087/files/nom_035_riesgos_psicosociales.pdf
    • https://cdn.shopify.com/s/files/1/0432/1620/8036/files/50782751364.pdf
    • https://cdn.shopify.com/s/files/1/0432/6676/9058/files/canada_express_entry_application_form.pdf
    • https://cdn.shopify.com/s/files/1/0429/1811/7543/files/abetone_weather_report.pdf
    • https://static.usrfiles.com/ugd/30e015_081eee874ac74f639c815cafc6224faf.pdf
    • https://static.usrfiles.com/ugd/b6bf5b_0e77a10835024f4e95b944a7fca1f2ae.pdf
    • https://static.usrfiles.com/ugd/08fe48_19d5c53e72b44c80b5f7aa8b94c369a8.pdf
    • https://static.usrfiles.com/ugd/77941b_e17ca7427d2349a5a984076a7f295b10.pdf
    • https://static.usrfiles.com/ugd/b8c837_060f67faf6074162b371c8e9907f299d.pdf
    • https://static.usrfiles.com/ugd/299074_da7622884d65474fb42a1c9318f1a149.pdf
    • https://static.usrfiles.com/ugd/07625c_e80c6c2db5ad4c13bb9ea17c9929c887.pdf
    • https://static.usrfiles.com/ugd/18122d_067774e185474dd7ae2b7ab5da6babbb.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_off000049db.bin
4e6d316d03c4027f9edc708b430c8fc106d37b2339b5e44f7a3755c3e477ac1a
pdf-font-stream PDF embedded font (sfnt) at offset 0x49DB 5156 bytes
font_01_sfnt_off00005b3d.bin
b9353ea035817f9462d56cf3b8fd4899c4fc0c030d29073d7163049178fd092e
pdf-font-stream PDF embedded font (sfnt) at offset 0x5B3D 9956 bytes
font_02_sfnt_off00007d5b.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e
pdf-font-stream PDF embedded font (sfnt) at offset 0x7D5B 4324 bytes