MALICIOUS — virussign.com_86df1e62443dd8338a12a849e38b21b0.vir
MALICIOUS — virussign.com_86df1e62443dd8338a12a849e38b21b0.vir is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Kazy family. 5 of 55 detection engines flagged it, exhibiting 4 ATT&CK techniques.
Identification
- SHA-256:
0aa6ddbd1ed886309282ffc8cb0f77d41c6c6c04ce117aed63233b6b626e02d1 - SHA-1:
0d7d143d030844502d891fc2b12cd56f52ef3594 - MD5:
86df1e62443dd8338a12a849e38b21b0 - imphash:
bef229bd8a414afbbd1edba1aeb00206 - ssdeep:
384:Q98xUHQx5/UE6oyXy4Ng8zLeiverojGZepNbkc1qklReF/0YefzGV5dg8g:Twa5UmA/gopNIeppkc15i/0Y6z++8g - TLSH:
T17D2F5D4AC214976DD2D6A80135824C8EE16177EEBA60E8AF2DD4473C4CF1423BD71B95 - Submitted as: virussign.com_86df1e62443dd8338a12a849e38b21b0.vir
- File type: pe · Size: 32768 bytes
- Verdict: malicious (99/100) · Family: Kazy
Detections (5 of 55 engines)
- YARA: MalwareAnalyser built-in: Windows_Injection_Api_Combo
- ClamAV (daily): Win.Trojan.Kazy-6838217-0
- Microsoft Defender: Trojan:Win32/Injector.ARA!MTB
- Emsisoft (Emergency Kit): Gen:Variant.Downloader.849
- Kaspersky (KVRT): HEUR:Trojan.Win32.Miancha.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.Kazy-6838217-0 (rule
Win.Trojan.Kazy-6838217-0) - 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 - 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 19 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 - Dropped 1 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
Dynamic analysis (windows)
114 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
- licensing.mp.microsoft.com
- windows.msn.com
- oneocsp.microsoft.com
- officeclient.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\tsk_04c0200cacd14ece.exe -
283a5e56e0cdf8b1ec9e994cc4c467aa18434b7c13a3d9e363d7ab9cb230b4a9
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=1787671448&P2=404&P3=2&P4=LKwGDR5n6OZzm9n69owivPCQ3S4hb4Q1G4ukOnTmmfrDeTuaVejSzUraMvHbH27TeE5G8J%2fuX1eD%2bu3pQgYUyw%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- aefd.nelreports.net
Embedded IP addresses
- 20.42.73.25
- 52.123.252.243
- 52.230.60.54
- 48.211.4.16
- 4.230.171.124
- 135.232.92.137
- 20.165.94.54
- 20.231.239.246
- 52.123.128.14
- 52.123.129.14
- 40.79.150.122
- 135.234.160.244
- 203.26.79.13
- 72.153.5.63
- 52.110.12.1
- 74.178.232.29
- 172.66.2.5
- 52.148.114.188
- 52.110.12.53
Registry keys
- HKEY_CURRENT_USER\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
More Kazy samples · Latest analyzed threats · ATT&CK coverage
Analyzed on MalwareAnalyzer by Cyble · Open interactive report