MALICIOUS — 1294bcc0aad6e4319ed471b44a6fbb98b3de3193adc2812cc9a2b47baadf8497
MALICIOUS — 1294bcc0aad6e4319ed471b44a6fbb98b3de3193adc2812cc9a2b47baadf8497 is a pe sample analyzed by MalwareAnalyzer by Cyble with a malicious verdict (99/100), attributed to the Zusy family. 6 of 55 detection engines flagged it, exhibiting 5 ATT&CK techniques.
Identification
- SHA-256:
1294bcc0aad6e4319ed471b44a6fbb98b3de3193adc2812cc9a2b47baadf8497 - SHA-1:
4c3a29317c978a14e92c691f59d42727c5b17332 - MD5:
7917eb3d3af5b85dade84edf8922b505 - imphash:
f1a539a5b71ad53ac586f053145f08ec - ssdeep:
6144:SqU9ciSwuoAFYfyCFWKR5OACVG/M6Vek0mfOcu5RdXOyNlD07G7av:S19YoAFYqCQK3OACU/M60k0ay5RdXFN2 - TLSH:
T1144723625939231CC3607D962D63EDBE0F62F13B4C9CBF2A552486CFA5A0D138692385 - Submitted as: 1294bcc0aad6e4319ed471b44a6fbb98b3de3193adc2812cc9a2b47baadf8497
- File type: pe · Size: 342472 bytes
- Verdict: malicious (99/100) · Family: Zusy
Detections (6 of 55 engines)
- MalwareAnalyser heuristics (entropy/packer): UPX
- ClamAV (daily): Win.Malware.Zusy-9957983-0
- Detect It Easy (packer/type): DIE:UPX
- Microsoft Defender: Trojan:Win32/Prepscram!pz
- Emsisoft (Emergency Kit): Gen:Variant.Virus.8
- Kaspersky (KVRT): Trojan.Win32.Agent.neyndy
MITRE ATT&CK
Why this verdict
The malicious score of 99/100 is the fusion of 10 weighted signals:
- ClamAV (daily) flagged Win.Malware.Zusy-9957983-0 (rule
Win.Malware.Zusy-9957983-0) - engine signal, weight 0.90, confidence 0.95 - 3 behavioral detection(s): Registry Run Key Persistence [high] (rule
tl-run-key) - dynamic signal, weight 0.60, confidence 0.90 - Observed at runtime: Registry Run Key Persistence (T1547.001) (rule
Registry Run Key Persistence) - dynamic signal, weight 0.40, confidence 0.90 - Observed at runtime: Windows Service (T1543.003) (rule
Windows Service) - dynamic signal, weight 0.40, confidence 0.90 - Contacted 25 external host(s) at runtime (32 HTTP) - network signal, weight 0.40, confidence 0.80
- Anti-analysis: T1497.001, T1497, T1082, T1622 - dynamic signal, weight 0.40, confidence 0.75
- Detect It Easy (packer/type) flagged DIE:UPX (rule
DIE:UPX) - engine signal, weight 0.35, confidence 0.70 - Packing/obfuscation: UPX, high-entropy-sections:UPX1 - static signal, weight 0.25, confidence 0.55
- Dropped 55 executable file(s) at runtime - dynamic signal, weight 0.20, confidence 0.60
- Observed at runtime: Modify Registry (T1112) (rule
Modify Registry) - dynamic signal, weight 0.12, confidence 0.90
Dynamic analysis (windows)
89697 behavior events · 3 ATT&CK techniques · 119 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
- yr.c.lencr.org
- yr1.c.lencr.org
- ctldl.windowsupdate.com
- login.live.com
- ocsp.digicert.com
- settings-win.data.microsoft.com
- desktop-hsgcbep
- v20.events.data.microsoft.com
- config.edge.skype.com
- licensing.mp.microsoft.com
Dropped files
- C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\nssckbi.dll -
75301e616641cc4934ebd52d47bd72f513d0a0f59e398f88131476040f1f4459 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\gmp-clearkey\0.1\clearkey.dll.sig -
5a2b996051994dfcec213e8e90554c0540941b9327c02005e1c4e976a7f05f1e - C:\Program Files (x86)\Mozilla Maintenance Service\Uninstall.exe -
244cfbdaff0cbc477fbcd0d3f507638234330415ed726e918b87f4d882be1529 - C:\Users\analyst\AppData\Local\Temp\nsfBF2.tmp\System.dll -
bd046e6497b304e4ea4ab102cab2b1f94ce09bde0eebba4c59942a732679e4eb - C:\Users\analyst\AppData\Local\Temp\nsv65CA.tmp\System.dll -
b711c4f17690421c9dc8ddb9ed5a9ddc539b3a28f11e19c851e25dcfc7701c04 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\minidump-analyzer.exe -
529c2900639682b41a27a9a2fd24cccb5ef22dcf4cec798652842aaaaac144cb - C:\Users\analyst\AppData\Local\Temp\JGLGOtMju1PHCiS.exe -
134e9f12545c3300eedc7a5644c28f390e00918a15fbcf2143492810ab4a5474 - C:\Users\analyst\AppData\Local\Temp\nsfBF2.tmp\CertCheck.dll -
9e1831bf44b75980903eff8446960f21ab323b9f8249ddb49519718d873135d5 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\mozavutil.dll -
0a3fb828cc9e1c67f31e6d8a2c40431182c89cc312b1f6e9e8a019f4c75f2f8e - C:\Users\analyst\AppData\Local\Microsoft\OneDrive\OneDrive.App.exe -
9ea0d746f57d0fba49c779eb64d57bb7db0a56e904725f0d07072d2236c82b34 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\browser\features\webcompat@mozilla.org.xpi -
df5a69e9269d7ed35640147a620270f6832714e635d89392f225afb109c7b378 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\nmhproxy.exe -
6165c719e77098f65682b90df4372e4399cb65cae3997790a6aace9b7d6580d0 - C:\Program Files\Mozilla Firefox\install.tmp -
1f586c317cf0d34f711779ad48f48ac6957fd1eb23b5c544a8018e6de1a678b2 - C:\Users\analyst\AppData\Local\Temp\7zS4AE20021\core\browser\VisualElements\PrivateBrowsing_150.png -
1701ff395543f3ad6b25584fa7014073f74949baca0dd2552216f58131328fef - C:\Users\analyst\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\103621DE9CD5414CC2538780B4B75751 -
0616297d5ae50be4cf205646d28219cfdda8625633955c9bea6de83898209a1a
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/fa5c4269-9d03-4a47-8d97-be6931f0b22c/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/fa5c4269-9d03-4a47-8d97-be6931f0b22c?P1=1787929725&P2=404&P3=2&P4=ZRri1c97XX%2b4NKpH0nOcpy5tOd%2bWpy8PZN9%2fhGOnG%2b6Jp0Xd%2fTHHrQNRuWNknDTeMKsEK6WvDn4DUeZgkEsUiA%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
- http://yr.c.lencr.org/
- http://yr1.c.lencr.org/48.crl
- http://yr1.c.lencr.org/103.crl
- http://203.26.79.13/filestreamingservice//files/51d86688-616b-47e3-abeb-3df16a1583c5/pieceshash?cacheHostOrigin=dl.delivery.mp.microsoft.com
- http://203.26.79.13/filestreamingservice/files/51d86688-616b-47e3-abeb-3df16a1583c5?P1=1787929855&P2=404&P3=2&P4=V6jI8kPClCXtZAubJjdyhzTTq30ZoZ%2bKlme1sJ%2bC67ywWrf3vIY5xrcvTk8cn524C3vokCX%2b4FiLEnoW%2fieP%2fg%3d%3d&cacheHostOrigin=msedge.b.tlu.dl.delivery.mp.microsoft.com
Embedded domains
- x1.c.lencr.org
- yr.c.lencr.org
- yr1.c.lencr.org
- download-installer.cdn.mozilla.net
Embedded IP addresses
- 48.211.4.16
- 4.150.223.109
- 52.230.60.54
- 4.230.171.124
- 4.247.188.224
- 74.178.76.128
- 4.150.223.105
- 74.178.76.54
- 135.233.95.144
- 20.76.201.171
- 52.123.129.14
- 135.234.160.245
- 203.26.79.13
- 108.158.32.104
- 52.148.114.188
- 20.165.94.46
- 72.153.5.96
- 135.233.45.223
- 34.36.14.59
- 18.65.242.141
- 104.18.20.213
- 20.42.65.93
- 51.105.71.136
- 52.110.12.33
- 52.110.12.53
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Analyzed on MalwareAnalyzer by Cyble · Open interactive report