MALICIOUS — virussign.com_01ccb3efa2999508acd6ae2cbda93340.vir
MALICIOUS — virussign.com_01ccb3efa2999508acd6ae2cbda93340.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the CeeInject family. 4 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
0ecdf5925823911e9d3773972d1c2b5fae41c9dfb5fcdb9cc426b37e5d5a3f7f - SHA-1:
8b101074285deeecaf3ec292f64e38e5d18b5e18 - MD5:
01ccb3efa2999508acd6ae2cbda93340 - imphash:
118eb37b88640d7f3f7ac979ea5687cc - ssdeep:
384:yVxXrcVkbCVm3WyzLeReRcnnpcyjXbSrsc55jenlHGAySyMTaUnOcLI9vCg:sZcVkFNinfbSj55jelHGJSy9UnUqg - TLSH:
T1F130F394C760629EE25BB80234D3A88EF16667AEF594D9BB48C447309DF4437BC34D88 - Submitted as: virussign.com_01ccb3efa2999508acd6ae2cbda93340.vir
- File type: pe · Size: 36864 bytes
- Verdict: malicious (99/100) · Family: CeeInject
Detections (4 of 55 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- ClamAV (daily): Win.Trojan.Rubinurd-67
- Microsoft Defender: VirTool:Win32/CeeInject.gen!DU
- Kaspersky (KVRT): HEUR:Trojan-Ransom.Win32.Blocker.gen
MITRE ATT&CK
YARA
- Windows_Injection_Api_Combo
Why this verdict
The malicious score of 99/100 is the fusion of 7 weighted signals:
- ClamAV (daily) flagged Win.Trojan.Rubinurd-67 (rule
Win.Trojan.Rubinurd-67) - engine signal, weight 0.90, confidence 0.95 - Process injection API combination (rule
Windows_Injection_Api_Combo) - yara signal, weight 0.65, confidence 0.90 - Dropped a malicious payload (Rubinurd): tsk_9e169569084c43f7.exe - dynamic signal, weight 0.62, confidence 0.90
- Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - 1 behavioral detection(s): Windows Service Installation [medium] (rule
tl-service-install) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 20 external host(s) at runtime (16 HTTP) - network signal, weight 0.40, confidence 0.80
- persist via registry run key (rule
persist via registry run key) - capa signal, weight 0.35, confidence 0.60
Dynamic analysis (windows)
133 behavior events · 1 ATT&CK techniques · 1 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
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- msedge.api.cdp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- www.msn.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_9e169569084c43f7.exe -
c4c456c03662b8c423a7cb003a4217c1c3a445685883932e739b9d8f1098ba82
Embedded URLs
- 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
- http://203.26.79.13/filestreamingservice/files/753bb2df-a166-494f-aa7d-5678b1ef0c56?P1=1787676328&P2=404&P3=2&P4=fvZWnidOZwXgmZFDKDNBrjKtv7PvJUvgjCBpZjw0BkfOdWMm0dlIXw8qxMKyEaYeKJ3fc4%2fFcGlZ5zx5OOEF%2fw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded IP addresses
- 52.110.12.37
- 52.110.12.11
- 4.150.223.109
- 4.230.171.124
- 20.42.179.192
- 52.253.84.76
- 74.179.77.204
- 74.179.71.159
- 74.178.240.51
- 51.104.15.253
- 203.26.79.13
- 4.150.223.104
- 20.76.201.171
- 52.123.128.14
- 40.99.133.226
- 52.148.114.188
- 172.178.240.161
- 52.110.12.52
- 72.145.35.112
- 52.110.12.33
Registry keys
- HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
File paths
- c:\temp\2015-05-01_22-53-25.dmp
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report