Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb198e1494ecf487…

MALICIOUS

PDF

47.6 KB Created: 2020-09-01 01:21:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: aab565f37898f5e16988e3177623f717 SHA-1: c2709a7d7c313c481891f53cf928b3a72fcf86fb SHA-256: bb198e1494ecf487514531bc3da2c78ddc706daf7a35390c6e341484f55dd3bc
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, with one specifically pointing to a known malicious redirector. The document body, though garbled, contains text related to 'airport security management pdf' and the malicious URL. This suggests a phishing or scam attempt where the user is tricked into clicking a link that leads to malicious infrastructure.

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.com/pify?keyword=airport+security+management+pdf
    • https://cdn.shopify.com/s/files/1/0437/7319/8497/files/adobe_reader_apps.pdf
    • https://cdn.shopify.com/s/files/1/0432/1620/8036/files/11995641840.pdf
    • https://cdn.shopify.com/s/files/1/0430/9676/8673/files/13400982149.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/52325197595.pdf
    • https://cdn.shopify.com/s/files/1/0437/1978/6645/files/91112251113.pdf
    • https://static.usrfiles.com/ugd/fd30ac_237d9ab2e2df45d7b58066db9e486cee.pdf
    • https://static.usrfiles.com/ugd/b8c837_8a102dd05cd640c09c166b36a8101432.pdf
    • https://static.usrfiles.com/ugd/daca0d_373d6301e73c46b7b1cb8ea9b16a9e37.pdf
    • https://static.usrfiles.com/ugd/eed56f_9647109c8ab24f06a5dfeb0bf581ef95.pdf
    • https://cdn.shopify.com/s/files/1/0435/5765/0584/files/69927107920.pdf
    • https://cdn.shopify.com/s/files/1/0434/6295/1062/files/nilejokaboxezogelogujoluw.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_off00006e4d.bin
54fe2058a79995ac053db8aea30f3eec2ecfe04f33dae2ae10f842ec8a2bc91f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E4D 5416 bytes
font_01_sfnt_off000080a6.bin
7a62658afde6fc816e206dea3883e9fd0c84bb5ee3d6633a3b5be53efef7ff97		 pdf-font-stream PDF embedded font (sfnt) at offset 0x80A6 10304 bytes
font_02_sfnt_off0000a3b0.bin
0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA3B0 4324 bytes

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