Malicious PDF — malware analysis report

Static analysis result for SHA-256 a3e956439658403a…

MALICIOUS

PDF

52.5 KB Created: 2020-08-14 20:11:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 9fded42661904b83ebd21644b286f302 SHA-1: 91c3cb07d5dde7c1076a6b9b29bc66b0d5774f22 SHA-256: a3e956439658403a40ac65cf28ed090133b8d0097dafdc45f36d94b86760a040
150 Risk Score

Malware Insights

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

The PDF contains a mass of external links, including one pointing to a known malicious redirector at ttraff.com. The document body, though heavily obfuscated, contains the URL that triggers the redirector. This indicates a phishing or social engineering attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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=uri+movie+challa+full+song
    • http://files.tinwagonboutique.com/uploads/1/3/2/8/132814306/2497163.pdf
    • http://tizizuw.edinaseniorpartyflowers.com/uploads/1/3/1/8/131856584/4712209.pdf
    • http://files.fabledcollective.com/uploads/1/3/0/7/130740022/paladudiguzu_fojafesanekin_guxusewaxexize_wazari.pdf
    • http://jaxisa.sasgamingclan.org/uploads/1/3/2/8/132814337/68f7978865e2.pdf
    • https://cdn.shopify.com/s/files/1/0435/9415/4146/files/vexivixosotuvogubebi.pdf
    • https://cdn.shopify.com/s/files/1/0429/7709/9935/files/amazon_business_plan_101.pdf
    • https://cdn.shopify.com/s/files/1/0433/3050/2806/files/86833533482.pdf
    • https://cdn.shopify.com/s/files/1/0432/7912/2587/files/gevazogefoxun.pdf
    • https://cdn.shopify.com/s/files/1/0428/9062/5191/files/mazuwefere.pdf
    • https://cdn.shopify.com/s/files/1/0437/7051/1521/files/fulexarezuxad.pdf
    • https://cdn.shopify.com/s/files/1/0432/4317/6091/files/nesuzetuxoxixesopuzipufen.pdf
    • https://cdn.shopify.com/s/files/1/0453/4956/8667/files/34581544545.pdf
    • https://cdn.shopify.com/s/files/1/0440/5392/1957/files/lepuneputesasomokipoda.pdf
    • https://cdn.shopify.com/s/files/1/0434/5744/6050/files/87884806395.pdf
    • https://cdn.shopify.com/s/files/1/0434/3247/6838/files/dapugufivo.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 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000529a.bin
e1d6f57f149ad263f2e1cafe536993d9205d1632a5bde4739d7b5ffc46754c7d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x529A 5348 bytes
font_01_sfnt_off000064a7.bin
619f6eb57c79c8b67ab5108c34dbee9a11053f88013c5d2052e0bed1a0c4a3d8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64A7 4880 bytes
font_02_sfnt_off0000749c.bin
4bb82fe1f793a8361a3238409c66ac67564d3462f105e4197234d1efaea3c4fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x749C 5796 bytes
font_03_sfnt_off0000886b.bin
2541c1df3f99a8be157687312ebf71b23e447d334d45a4d0902c87eae3a9b81a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x886B 10340 bytes
font_04_sfnt_off0000ac08.bin
92a1e9809ade21f838c370374959577398737ed00468740eefae3dc4916729d0		 pdf-font-stream PDF embedded font (sfnt) at offset 0xAC08 17072 bytes

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