Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e92759ebb070e87…

MALICIOUS

PDF

46.5 KB Created: 2020-07-31 05:38:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4953fbee2ad392a8455dca5e8d783a80 SHA-1: d9b6f0da3c1ec95ec45d83b3a839a87a03348a8a SHA-256: 9e92759ebb070e8716f6ddc0f04d297848b0bd6c47b792690c180b08388dba18
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The primary heuristic indicates that these links lead to known malicious infrastructure. The document body, though heavily obfuscated, suggests a lure related to a 'Barcelona city center map pdf'. The presence of numerous external links, including a redirector, strongly suggests an attempt to direct users to malicious content or phishing sites.

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.ru/pify?keyword=barcelona+city+center+map+pdf
    • http://files.chowdental.net/uploads/1/3/2/6/132680827/tigipit_zuzob.pdf
    • http://files.northtexasmeasurementassociation.com/uploads/1/3/1/3/131397940/488543.pdf
    • http://files.haileegibbons.com/uploads/1/3/2/7/132712180/pijeb.pdf
    • https://cdn.shopify.com/s/files/1/0437/6353/1933/files/65181606617.pdf
    • https://cdn.shopify.com/s/files/1/0428/8462/8633/files/89693308839.pdf
    • https://cdn.shopify.com/s/files/1/0432/7754/9726/files/buvitusuro.pdf
    • https://cdn.shopify.com/s/files/1/0430/3051/1779/files/jejevebevafekamojojib.pdf
    • https://cdn.shopify.com/s/files/1/0435/1141/4939/files/24580222518.pdf
    • https://cdn.shopify.com/s/files/1/0428/3580/4319/files/75819701613.pdf
    • https://cdn.shopify.com/s/files/1/0436/4196/2649/files/91976525686.pdf
    • https://cdn.shopify.com/s/files/1/0436/4537/0521/files/xuzege.pdf
    • https://cdn.shopify.com/s/files/1/0429/3482/9223/files/gafezuvalonumaporenizun.pdf
    • https://cdn.shopify.com/s/files/1/0431/8865/0142/files/30607933039.pdf
    • https://cdn.shopify.com/s/files/1/0435/2344/0792/files/vefukomukipimib.pdf
    • https://cdn.shopify.com/s/files/1/0428/9105/1161/files/64123932189.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_off000078d2.bin
2ab13dd57fc889aa8e5c39b0fadecf8ea8b58a4dfaeb8d87ca2608364e2eb2ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x78D2 5060 bytes
font_01_sfnt_off000089ef.bin
54a4588e8ba77b3baac3275fcb1d4581d13c82cfee9c9a0bea7c3ba56250eb6e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89EF 10316 bytes

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