PDF malware analysis — malicious · 3159cc7370aeef79

MALICIOUS

PDF

37.8 KB Created: 2020-07-27 19:45:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 05883f41a1e9f32fefc1b0730501f61a SHA-1: 3c684b420d1af2400f7a94a719d68d0eb01b0ee4 SHA-256: 3159cc7370aeef798cbcdb151b88dde8f134c6cab4331c188392d0b0a60034c0

150 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 infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains keywords related to movie piracy, likely serving as a lure. The ML classifier strongly flagged this PDF as malicious. The primary IOC is the redirector URL, which is likely used to serve further malicious content.

Machine Learning

Nyx PDF Classifier malicious score 1.0000

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=tamilrockers+2019+tamil+horror+movies
- http://files.nadialouderback.com/uploads/1/3/1/4/131406811/7f588a3200c.pdf
- http://files.legalandcommercial.com/uploads/1/3/1/6/131606330/jetuvuzumalut_votidub_lepijepofokat.pdf
- http://files.cyclonecompanyevhs.com/uploads/1/3/0/7/130738559/607666fce99b37a.pdf
- http://files.erikassuperstarbling.com/uploads/1/3/2/6/132695636/a229b0dec.pdf
- https://cdn.shopify.com/s/files/1/0428/4104/7206/files/lupidibofiwigebadozi.pdf
- https://cdn.shopify.com/s/files/1/0430/9336/0791/files/13334934947.pdf
- https://cdn.shopify.com/s/files/1/0432/9606/3652/files/489125347.pdf
- https://cdn.shopify.com/s/files/1/0431/7052/9436/files/63927675049.pdf
- https://cdn.shopify.com/s/files/1/0429/9672/7962/files/puvovaleso.pdf
- https://cdn.shopify.com/s/files/1/0428/9573/6988/files/fewomazirixisusage.pdf
- https://cdn.shopify.com/s/files/1/0430/6383/6834/files/70605599863.pdf
- https://cdn.shopify.com/s/files/1/0431/6938/2568/files/sadetetinavakuzikubakid.pdf
- https://cdn.shopify.com/s/files/1/0435/7367/4142/files/xixutasilekukuzupaw.pdf
- https://cdn.shopify.com/s/files/1/0434/7713/9613/files/33944724029.pdf
- https://cdn.shopify.com/s/files/1/0435/4339/6506/files/mafumuvebiguziwetimewo.pdf
- https://cdn.shopify.com/s/files/1/0431/4251/2802/files/nikosodazowolelupok.pdf
- https://cdn.shopify.com/s/files/1/0430/2218/8701/files/61620953836.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/
- https://cdn.shopify.com/

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000582e.bin` `0f46bc367ce639464d162d8c5ce2d898f255545779089ee15406d87c37507314`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x582E	5276 bytes
`font_01_sfnt_off00006a21.bin` `5d58c09925f7de14d07a0cc619123f83c22687fa26408005b81cef9e1fc01d33`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6A21	9388 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.