PDF malware analysis — malicious · 9db4e39883d9fe83

MALICIOUS

PDF

41.0 KB Created: 2020-07-31 20:01:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4cbb44dd1a87fac4f4faf9204f8b0cac SHA-1: a16e0a51c7526c8c68984ecd90698df677eab253 SHA-256: 9db4e39883d9fe83799f6a4afbce8d26b7f3635442cf73178f9c8f82061b03e8

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link farm designed to redirect users to malicious content, specifically disguised as a free book download. The primary malicious URL identified is https://ttraff.cc/pify?keyword=ready+player+one+book+pdf+free, which is part of a known redirector infrastructure. The document body, though heavily obfuscated, contains references to this URL and numerous other PDF links hosted on various domains, indicating a coordinated effort to distribute malicious content.

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=ready+player+one+book+pdf+free
- http://files.mcgilltennis.com/uploads/1/3/1/4/131410370/9197234.pdf
- http://files.aplincookgardner.net/uploads/1/3/0/9/130969608/9ac8faf519b0.pdf
- http://files.redhotyogastudios.com/uploads/1/3/1/6/131636987/29b59ed71.pdf
- http://files.4loveofbaskets.com/uploads/1/3/2/6/132683063/0f8d971e5c.pdf
- http://files.unismunc.org/uploads/1/3/2/6/132695351/kipadafe_libumaditukox_bixigev_mikumokeb.pdf
- https://cdn.shopify.com/s/files/1/0432/2797/1741/files/robafuvebatatawadodoxe.pdf
- https://cdn.shopify.com/s/files/1/0429/1880/5657/files/nekamipokosokagukup.pdf
- https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lasuzopaxikabade.pdf
- https://cdn.shopify.com/s/files/1/0431/3723/7148/files/33125219431.pdf
- https://cdn.shopify.com/s/files/1/0433/0110/9920/files/jibumexibovimexezeni.pdf
- https://cdn.shopify.com/s/files/1/0432/8954/2809/files/guvifosizufefixiv.pdf
- https://cdn.shopify.com/s/files/1/0433/5891/2662/files/90725093416.pdf
- https://cdn.shopify.com/s/files/1/0435/8144/0168/files/92690713727.pdf
- https://cdn.shopify.com/s/files/1/0435/5407/8883/files/56400973787.pdf
- https://cdn.shopify.com/s/files/1/0429/4914/8838/files/nuzar.pdf
- https://cdn.shopify.com/s/files/1/0437/9269/5456/files/sulijopuzikip.pdf
- https://cdn.shopify.com/s/files/1/0433/6379/5096/files/48411044690.pdf
- https://cdn.shopify.com/s/files/1/0439/2475/0491/files/rugesan.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000603a.bin` `4282772ebe37f5e0787edc5b59e0f920181839dede9cee5c4cbbe4c142cd1f10`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x603A	5168 bytes
`font_01_sfnt_off000071ee.bin` `b97cdbb3cdfa04d1416e703a852ea6307663cf377a19074ab84367c0a2c25ce1`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x71EE	10292 bytes

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