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Analysis
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max time kernel
152s -
max time network
189s -
platform
windows7_x64 -
resource
win7-20220414-en -
submitted
25/06/2022, 05:01
Static task
static1
Behavioral task
behavioral1
Sample
3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe
Resource
win7-20220414-en
Behavioral task
behavioral2
Sample
3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe
Resource
win10v2004-20220414-en
General
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Target
3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe
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Size
280KB
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MD5
1cf4d2df77d4f71f1ee9b3714d078c20
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SHA1
74cfa7227a6129f485aad08556ca4f714439b9bf
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SHA256
3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82
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SHA512
ea3371610708c0cdf362cfdae6ec9e829e967df8793a51798a94a295bddd9ab926d6d230daf7e785b1522ebf52d7691f01e2f6b29f611b6a18767daec2404aba
Malware Config
Extracted
C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\_ReCoVeRy_+ijubt.txt
teslacrypt
http://sondr5344ygfweyjbfkw4fhsefv.heliofetch.at/D7FBF73FF368581C
http://gfkuwflbhsjdabnu4nfukerfqwlfwr4rw.ringbalor.com/D7FBF73FF368581C
http://oehknf74ohqlfnpq9rhfgcq93g.hateflux.com/D7FBF73FF368581C
http://xlowfznrg4wf7dli.ONION/D7FBF73FF368581C
Extracted
C:\$Recycle.Bin\S-1-5-21-1083475884-596052423-1669053738-1000\_ReCoVeRy_+ijubt.html
Signatures
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TeslaCrypt, AlphaCrypt
Ransomware based on CryptoLocker. Shut down by the developers in 2016.
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suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
suricata: ET MALWARE Alphacrypt/TeslaCrypt Ransomware CnC Beacon
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Executes dropped EXE 2 IoCs
pid Process 932 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe -
Deletes itself 1 IoCs
pid Process 764 cmd.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\SOFTWARE\Microsoft\WINDOWS\CurrentVersion\RUN bvsvenutqrvq.exe Set value (str) \REGISTRY\USER\S-1-5-21-1083475884-596052423-1669053738-1000\Software\Microsoft\Windows\CurrentVersion\Run\sgfvfxy = "C:\\Windows\\system32\\CMD.EXE /c start C:\\Windows\\bvsvenutqrvq.exe" bvsvenutqrvq.exe -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 2020 set thread context of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 932 set thread context of 780 932 bvsvenutqrvq.exe 31 -
Drops file in Windows directory 2 IoCs
description ioc Process File created C:\Windows\bvsvenutqrvq.exe 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe File opened for modification C:\Windows\bvsvenutqrvq.exe 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe 780 bvsvenutqrvq.exe -
Suspicious use of AdjustPrivilegeToken 45 IoCs
description pid Process Token: SeDebugPrivilege 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe Token: SeDebugPrivilege 780 bvsvenutqrvq.exe Token: SeIncreaseQuotaPrivilege 1964 WMIC.exe Token: SeSecurityPrivilege 1964 WMIC.exe Token: SeTakeOwnershipPrivilege 1964 WMIC.exe Token: SeLoadDriverPrivilege 1964 WMIC.exe Token: SeSystemProfilePrivilege 1964 WMIC.exe Token: SeSystemtimePrivilege 1964 WMIC.exe Token: SeProfSingleProcessPrivilege 1964 WMIC.exe Token: SeIncBasePriorityPrivilege 1964 WMIC.exe Token: SeCreatePagefilePrivilege 1964 WMIC.exe Token: SeBackupPrivilege 1964 WMIC.exe Token: SeRestorePrivilege 1964 WMIC.exe Token: SeShutdownPrivilege 1964 WMIC.exe Token: SeDebugPrivilege 1964 WMIC.exe Token: SeSystemEnvironmentPrivilege 1964 WMIC.exe Token: SeRemoteShutdownPrivilege 1964 WMIC.exe Token: SeUndockPrivilege 1964 WMIC.exe Token: SeManageVolumePrivilege 1964 WMIC.exe Token: 33 1964 WMIC.exe Token: 34 1964 WMIC.exe Token: 35 1964 WMIC.exe Token: SeIncreaseQuotaPrivilege 1964 WMIC.exe Token: SeSecurityPrivilege 1964 WMIC.exe Token: SeTakeOwnershipPrivilege 1964 WMIC.exe Token: SeLoadDriverPrivilege 1964 WMIC.exe Token: SeSystemProfilePrivilege 1964 WMIC.exe Token: SeSystemtimePrivilege 1964 WMIC.exe Token: SeProfSingleProcessPrivilege 1964 WMIC.exe Token: SeIncBasePriorityPrivilege 1964 WMIC.exe Token: SeCreatePagefilePrivilege 1964 WMIC.exe Token: SeBackupPrivilege 1964 WMIC.exe Token: SeRestorePrivilege 1964 WMIC.exe Token: SeShutdownPrivilege 1964 WMIC.exe Token: SeDebugPrivilege 1964 WMIC.exe Token: SeSystemEnvironmentPrivilege 1964 WMIC.exe Token: SeRemoteShutdownPrivilege 1964 WMIC.exe Token: SeUndockPrivilege 1964 WMIC.exe Token: SeManageVolumePrivilege 1964 WMIC.exe Token: 33 1964 WMIC.exe Token: 34 1964 WMIC.exe Token: 35 1964 WMIC.exe Token: SeBackupPrivilege 668 vssvc.exe Token: SeRestorePrivilege 668 vssvc.exe Token: SeAuditPrivilege 668 vssvc.exe -
Suspicious use of WriteProcessMemory 34 IoCs
description pid Process procid_target PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 2020 wrote to memory of 1752 2020 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 27 PID 1752 wrote to memory of 932 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 28 PID 1752 wrote to memory of 932 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 28 PID 1752 wrote to memory of 932 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 28 PID 1752 wrote to memory of 932 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 28 PID 1752 wrote to memory of 764 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 29 PID 1752 wrote to memory of 764 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 29 PID 1752 wrote to memory of 764 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 29 PID 1752 wrote to memory of 764 1752 3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe 29 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 932 wrote to memory of 780 932 bvsvenutqrvq.exe 31 PID 780 wrote to memory of 1964 780 bvsvenutqrvq.exe 32 PID 780 wrote to memory of 1964 780 bvsvenutqrvq.exe 32 PID 780 wrote to memory of 1964 780 bvsvenutqrvq.exe 32 PID 780 wrote to memory of 1964 780 bvsvenutqrvq.exe 32 -
System policy modification 1 TTPs 2 IoCs
description ioc Process Key created \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System bvsvenutqrvq.exe Set value (int) \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\EnableLinkedConnections = "1" bvsvenutqrvq.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe"C:\Users\Admin\AppData\Local\Temp\3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2020 -
C:\Users\Admin\AppData\Local\Temp\3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe"C:\Users\Admin\AppData\Local\Temp\3a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82.exe"2⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1752 -
C:\Windows\bvsvenutqrvq.exeC:\Windows\bvsvenutqrvq.exe3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:932 -
C:\Windows\bvsvenutqrvq.exeC:\Windows\bvsvenutqrvq.exe4⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
- System policy modification
PID:780 -
C:\Windows\System32\wbem\WMIC.exe"C:\Windows\System32\wbem\WMIC.exe" shadowcopy delete /nointeractive5⤵
- Suspicious use of AdjustPrivilegeToken
PID:1964
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c DEL C:\Users\Admin\AppData\Local\Temp\3A44FE~1.EXE3⤵
- Deletes itself
PID:764
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
PID:668
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
280KB
MD51cf4d2df77d4f71f1ee9b3714d078c20
SHA174cfa7227a6129f485aad08556ca4f714439b9bf
SHA2563a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82
SHA512ea3371610708c0cdf362cfdae6ec9e829e967df8793a51798a94a295bddd9ab926d6d230daf7e785b1522ebf52d7691f01e2f6b29f611b6a18767daec2404aba
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Filesize
280KB
MD51cf4d2df77d4f71f1ee9b3714d078c20
SHA174cfa7227a6129f485aad08556ca4f714439b9bf
SHA2563a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82
SHA512ea3371610708c0cdf362cfdae6ec9e829e967df8793a51798a94a295bddd9ab926d6d230daf7e785b1522ebf52d7691f01e2f6b29f611b6a18767daec2404aba
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Filesize
280KB
MD51cf4d2df77d4f71f1ee9b3714d078c20
SHA174cfa7227a6129f485aad08556ca4f714439b9bf
SHA2563a44fefcd1fe62f4cf621ea9adae95b79308c452f93174757a4c61bf19a06b82
SHA512ea3371610708c0cdf362cfdae6ec9e829e967df8793a51798a94a295bddd9ab926d6d230daf7e785b1522ebf52d7691f01e2f6b29f611b6a18767daec2404aba