Malicious PDF — malware analysis report

Static analysis result for SHA-256 b5e483faad33685c…

MALICIOUS

PDF

40.4 KB Created: 2020-08-17 13:09:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 48870b3488a7c7f385ed2c76a9b12995 SHA-1: 610f419ebbb9061ec21968ea50bfb1669b76b23b SHA-256: b5e483faad33685c7bfcda2d3069137682d5c2f503cf44a798bcb0a4bfa18593
120 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, specifically pointing to 'https://ttraff.ru/pify?keyword=aeroplane+whatsapp+status+video'. This URL is presented within the document body, suggesting a social engineering lure to direct the user to malicious infrastructure. The file also contains a large number of external links, many hosted on Shopify, which is flagged as a link farm. 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.ru/pify?keyword=aeroplane+whatsapp+status+video
    • http://files.tomaslundquist.com/uploads/1/3/2/7/132710659/3712823.pdf
    • https://cdn.shopify.com/s/files/1/0437/6068/1111/files/2002_chevy_cavalier_repair_manual.pdf
    • https://cdn.shopify.com/s/files/1/0430/7966/3765/files/honda_pilot_service_manual.pdf
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/rosetotirumeza.pdf
    • https://cdn.shopify.com/s/files/1/0432/0513/2456/files/48440595094.pdf
    • https://cdn.shopify.com/s/files/1/0432/5113/8715/files/nezamifujerodumurajo.pdf
    • https://cdn.shopify.com/s/files/1/0432/4245/5197/files/63029521917.pdf
    • https://cdn.shopify.com/s/files/1/0431/6761/3087/files/fabunuburesuvopugu.pdf
    • https://cdn.shopify.com/s/files/1/0432/3305/0779/files/winalipadulagoval.pdf
    • https://cdn.shopify.com/s/files/1/0432/0201/9487/files/81340973192.pdf
    • https://cdn.shopify.com/s/files/1/0433/9721/8471/files/destination_grammar_b2.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_off00005663.bin
11000f3c880008121ca5f8b357e14dac1ba1e5f25b66ebc77574206e3bb3a6ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5663 5188 bytes
font_01_sfnt_off0000680b.bin
433e30de22a6c5265516930d8ac2eccef944f145c38073657ef4ca5423c4d5b4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x680B 9760 bytes
font_02_sfnt_off000089bb.bin
d14c13bc4c00528ba21b2cfb1389de8cb4aaaba55fc14ac8e02f3ebdf60af4f2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x89BB 2800 bytes

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