Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc7e8b4476b0b8af…

MALICIOUS

PDF

64.5 KB Created: 2020-07-30 18:22:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b6f287d18948bb8a55eb1e9051972138 SHA-1: e6a6cfe17c8ac4a3b6d7f5426176b699eb6f9437 SHA-256: cc7e8b4476b0b8afd34cb28e0c1427966cbc0922d0a3a95df1cfe6cc212ba90e
150 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The document body, though heavily obfuscated, appears to be a user manual for a Buderus Logamatic ERC, a common lure for phishing or malware delivery. The heuristic firings confirm the presence of malicious redirector links and a link farm, indicating a deliberate attempt to drive traffic to malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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.cc/pify?keyword=buderus+logamatic+erc+bedienungsanleitung+pdf
    • http://files.auzpexbeauty.com/uploads/1/3/2/6/132680796/2759134.pdf
    • http://files.six-tech-usa.com/uploads/1/3/1/6/131606583/5551052.pdf
    • http://files.glambarbyceline.com/uploads/1/3/0/7/130776401/fbbbf341ab3.pdf
    • http://files.snydersbuildings.com/uploads/1/3/1/3/131380558/5f42a7.pdf
    • https://cdn.shopify.com/s/files/1/0433/9807/0435/files/9294255432.pdf
    • https://cdn.shopify.com/s/files/1/0430/6544/2455/files/82312264720.pdf
    • https://cdn.shopify.com/s/files/1/0430/8559/4775/files/38695073577.pdf
    • https://cdn.shopify.com/s/files/1/0429/7133/2767/files/vupex.pdf
    • https://cdn.shopify.com/s/files/1/0429/7284/0090/files/70961653904.pdf
    • https://cdn.shopify.com/s/files/1/0428/0261/0335/files/25563153400.pdf
    • https://cdn.shopify.com/s/files/1/0435/8632/2593/files/bedadopi.pdf
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/4659790584.pdf
    • https://cdn.shopify.com/s/files/1/0433/0576/2974/files/lugegisomekotidogatuxotev.pdf
    • https://cdn.shopify.com/s/files/1/0432/9832/4638/files/89314323040.pdf
    • https://cdn.shopify.com/s/files/1/0432/7617/3472/files/83787413503.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_off0000b06d.bin
f0dec28e465d971b31edd731fba75244d4e97c54b93fed74fe0832a7c964b7d2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB06D 5548 bytes
font_01_sfnt_off0000c322.bin
fdc484fbccc28051626dd99602dfb515d520c7a97deb233c8ec0587911ad38f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC322 15664 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.