PDF malware analysis — malicious · 1a0b3c585f488a1e

MALICIOUS

PDF

60.3 KB Created: 2020-08-01 17:52:16 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 85f4c766496b14eff2e4bf395cf04261 SHA-1: c1da6e3956ebc71868d3e6ec0f565158fd2abd3e SHA-256: 1a0b3c585f488a1e8fab911ea6f64ca69f4537bf1bbf785249970bf7d823fdb8

120 Risk Score

Malware Insights

MITRE ATT&CK

T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.ru/pify?keyword=a+scanner+darkly+torrent'. Another critical heuristic indicates a link farm, suggesting an attempt to manipulate search engine results or distribute content widely. The document body, though heavily obfuscated, contains the aforementioned redirector URL, reinforcing the malicious intent. No scripts were extracted, but the presence of numerous links points to a delivery mechanism focused on user interaction with external resources.

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=a+scanner+darkly+torrent
- http://files.leedsbarber.co.uk/uploads/1/3/1/4/131409508/d12b2.pdf
- http://files.missmurdysmenagerie.com/uploads/1/3/1/4/131407977/8999811.pdf
- http://files.mthschoirs.org/uploads/1/3/0/7/130776757/badebalusabujuxugodo.pdf
- https://cdn.shopify.com/s/files/1/0428/9835/8432/files/wajumibuxup.pdf
- https://cdn.shopify.com/s/files/1/0434/8837/9032/files/52617219475.pdf
- https://cdn.shopify.com/s/files/1/0431/5650/4744/files/92329675099.pdf
- https://cdn.shopify.com/s/files/1/0432/7977/7952/files/xisijezir.pdf
- https://cdn.shopify.com/s/files/1/0437/5232/5272/files/8489230218.pdf
- https://cdn.shopify.com/s/files/1/0433/1008/8342/files/case_tractor_manuals.pdf
- https://cdn.shopify.com/s/files/1/0434/6917/6985/files/70008433166.pdf
- https://cdn.shopify.com/s/files/1/0431/4942/6839/files/6576538791.pdf
- https://cdn.shopify.com/s/files/1/0431/2953/6676/files/nebevusajoduwojotolex.pdf
- https://cdn.shopify.com/s/files/1/0431/9880/8224/files/60510407932.pdf
- https://cdn.shopify.com/s/files/1/0432/4681/3346/files/71767731124.pdf
- https://cdn.shopify.com/s/files/1/0435/4719/7594/files/45586048471.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.

Filename	Kind	Source	Size
`font_00_sfnt_off00009e61.bin` `502aa8ff9dd504b8cb3501c5acc006f737becb354ddf9793c8f5dc783567f904`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9E61	4828 bytes
`font_01_sfnt_off0000aecc.bin` `a1204ca460ae47f1c841da9a5e5406aca5b04cae2779f92cbea50f323f695208`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xAECC	11452 bytes
`font_02_sfnt_off0000d446.bin` `ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xD446	4324 bytes

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