MALICIOUS — ruxadefume.pdf
MALICIOUS — ruxadefume.pdf is a pdf sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (84/100). 2 of 53 detection engines flagged it, exhibiting 2 ATT&CK techniques.
Identification
- SHA-256:
9272934acebf79d15d677581a1cc65f54412485b4ed324d4fcb6dff5c607be49 - SHA-1:
d90db348d596c121ba566c1e2d702b1e1ce6a590 - MD5:
8d151381f3e212991f689c16854b1911 - ssdeep:
768:xgGzpD3Hc5w04+PJbqeLuS+I7bVcFd2TTpDO0GXlOTEk8yPyW81Mdl8R:CGFT85w0xPCS536yGwEPyDiMYR - TLSH:
T15334AFF341A7DD8CB68A7B17A9E52059A14ED74D3133ABA44488772CC4BC6FC7E00961 - Submitted as: ruxadefume.pdf
- File type: pdf · Size: 52492 bytes
- Verdict: malicious (84/100)
Detections (2 of 53 engines)
- MalwareAnalyser heuristics (entropy/packer): high-entropy-blob
- Emsisoft (Emergency Kit): PDF.Spam.Heur.1
MITRE ATT&CK
Why this verdict
The malicious score of 84/100 is the fusion of 6 weighted signals:
- Embedded link rated malicious by URL analysis: https://uploads.strikinglycdn.com/files/b957d646-b005-4118-b851-78a45004ebc6/95140387643.pdf - network signal, weight 0.70, confidence 0.80
- Contacted 18 external host(s) at runtime (4 HTTP) - network signal, weight 0.40, confidence 0.80
- Embedded network infrastructure: https://gettraff.ru/strik?keyword=calculus+3+pdf, https://uploads.strikinglycdn.com/files/b957d646-b005-4118-b851-78a45004ebc6/95140387643.pdf, https://uploads.strikinglycdn.com/files/e8403ab1-200f-40f2-9d1d-43f4537493f7/81467524526.pdf - static signal, weight 0.35, confidence 0.60
- Document active content: uri-action - static signal, weight 0.30, confidence 0.60
- Packing/obfuscation: high-entropy-blob - static signal, weight 0.25, confidence 0.55
- Extracted generic config (15 C2) (generic/advisory) - engine signal, weight 0.15, confidence 0.30
Dynamic analysis (windows)
9721 behavior events · 0 ATT&CK techniques · 3 dropped files.
Runtime network
- www.msftconnecttest.com
- rb.symcd.com
- rb.symcb.com
- inference.location.live.net
- to-do.office.com
- staging.to-do.officeppe.com
- teams.cloud.microsoft
- outlook.office.com
- outlook.office365.com
- outlook.cloud.microsoft
- 250.255.255.239.in-addr.arpa
- desktop-hsgcbep
- b.f.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- 252.0.0.224.in-addr.arpa
- 3.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- ntp.ubuntu.com
- 2.0.0.0.1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.f.f.ip6.arpa
- v10.events.data.microsoft.com
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
Dropped files
- C:\Users\analyst\AppData\Local\SumatraPDF\sumatrapdfcache\4bec4a52494319dee28279a4674aba73.png -
18d548fb4a32d6287314f8faf2b55b6374d0157f159941af695d344d325c921d - C:\Users\analyst\AppData\Local\SumatraPDF\SumatraPDF-settings.txt -
297c0b64c56174fdf783f75df5a8a244a4ae0524c82eb5f6278f774e57b7f109 - root_.cache_dconf_user -
96a296d224f285c67bee93c30f8a309157f0daa35dc5b87e410b78630a09cfc7
Embedded URLs
- https://gettraff.ru/strik?keyword=calculus+3+pdf
- https://uploads.strikinglycdn.com/files/b957d646-b005-4118-b851-78a45004ebc6/95140387643.pdf
- https://uploads.strikinglycdn.com/files/e8403ab1-200f-40f2-9d1d-43f4537493f7/81467524526.pdf
- https://uploads.strikinglycdn.com/files/da467ad7-8e25-4a94-8535-f4190f1a30f5/figuwagi.pdf
- https://uploads.strikinglycdn.com/files/2e922355-75b7-48a9-8992-464f153b5a92/66591081782.pdf
- https://site-1036982.mozfiles.com/files/1036982/90013272277.pdf
- https://site-1037101.mozfiles.com/files/1037101/35884289870.pdf
- https://site-1036835.mozfiles.com/files/1036835/todojotavenonakazinuguz.pdf
- https://site-1037215.mozfiles.com/files/1037215/38825594636.pdf
- https://site-1036973.mozfiles.com/files/1036973/bovotizenu.pdf
- https://uploads.strikinglycdn.com/files/838c6ff0-11d8-46fb-a534-7d7eb6ea08cd/56867539035.pdf
- https://uploads.strikinglycdn.com/files/53594f1a-e7a8-4796-8ff4-9becf1e1543b/6216807428.pdf
- https://site-1037224.mozfiles.com/files/1037224/zedabagorevodomanuxi.pdf
- https://site-1037251.mozfiles.com/files/1037251/18578813714.pdf
- https://site-1036728.mozfiles.com/files/1036728/74919513947.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/
- http://www.msftconnecttest.com/connecttest.txt
- http://rb.symcd.com/MFEwTzBNMEswSTAJBgUrDgMCGgUABBTDRSYViRCZTxmZjLENmnwVjLly9QQU1MAGIknrOUvdk%2BJcobhHdglyA1gCEF0QyxjrOnkAh4OrdHf50xk%3D
- http://rb.symcb.com/rb.crl
- http://203.26.79.13/filestreamingservice//files/753bb2df-a166-494f-aa7d-5678b1ef0c56/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
Embedded domains
- gettraff.ru
- uploads.strikinglycdn.com
- site-1036982.mozfiles.com
- site-1037101.mozfiles.com
- site-1036835.mozfiles.com
- site-1037215.mozfiles.com
- site-1036973.mozfiles.com
- site-1037224.mozfiles.com
- site-1037251.mozfiles.com
- site-1036728.mozfiles.com
- www.w3.org
- purl.org
- ns.adobe.com
Embedded IP addresses
- 52.123.252.243
- 172.66.2.5
- 52.110.12.2
- 57.155.104.224
- 4.230.171.124
- 135.232.92.97
- 20.231.239.246
- 135.233.95.144
- 52.123.129.14
- 52.123.252.234
- 72.153.5.128
- 203.26.79.13
- 52.123.252.194
- 52.123.252.193
- 172.178.240.161
- 74.178.76.44
- 92.223.78.30
- 20.184.175.10
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report