Malicious PDF — malware analysis report

Static analysis result for SHA-256 58f43ab4097c0782…

MALICIOUS

PDF

47.5 KB Created: 2020-08-17 04:43:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 62d5f1422f368fa36a2f981625fa917b SHA-1: b9929f3066bf5d5c873430440d1b51886e406f3a SHA-256: 58f43ab4097c0782bdec247a717b02f6c386bcddfe837bf2638e591dc9fcdb91
120 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a link farm hosted on Shopify. One of these links, 'https://ttraff.cc/pify?keyword=chi+la+sow+full+movie++mp4', is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to trick users into clicking the malicious link under the guise of movie content. 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.cc/pify?keyword=chi+la+sow+full+movie++mp4
    • http://files.mezfantasypublishing.com/uploads/1/3/1/0/131070792/1273510.pdf
    • http://jefufi.starfireband.ca/uploads/1/3/2/7/132712336/bd31164ec7affe4.pdf
    • http://files.sfagingresearch.com/uploads/1/3/0/7/130740547/voxav-xisofodet-popisiwexoduzeb-lixebexuvo.pdf
    • https://cdn.shopify.com/s/files/1/0427/8996/1884/files/7935134173.pdf
    • https://cdn.shopify.com/s/files/1/0437/9607/0560/files/tokepo.pdf
    • https://cdn.shopify.com/s/files/1/0436/1230/7618/files/22872508061.pdf
    • https://cdn.shopify.com/s/files/1/0431/5106/5243/files/5727325415.pdf
    • https://cdn.shopify.com/s/files/1/0434/6550/6966/files/nogunujokuzikuv.pdf
    • https://cdn.shopify.com/s/files/1/0432/0333/0209/files/rivelamevisepug.pdf
    • https://cdn.shopify.com/s/files/1/0429/1241/5911/files/92855535373.pdf
    • https://cdn.shopify.com/s/files/1/0431/1629/8393/files/asepsia_y_antisepsia_articulo.pdf
    • https://cdn.shopify.com/s/files/1/0437/6903/6958/files/74489504921.pdf
    • https://cdn.shopify.com/s/files/1/0432/0935/9520/files/onan_generator_repair.pdf
    • https://cdn.shopify.com/s/files/1/0428/5900/4070/files/wizijajire.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_off000071e0.bin
8e5ba90b67a24b05204a14716a4a692878d155bbb8fd26647d43934c6b2a9d41		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71E0 5188 bytes
font_01_sfnt_off00008386.bin
80d43b144d1691b5058aab9412dd496193c6d7c7a6fbc176a975cbe38f589b6b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8386 14716 bytes

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