Analysis
- max time kernel
147s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
27/03/2024, 23:51
Behavioral task
behavioral1
Sample
Client-built.exe
Resource
win7-20240319-en
16 signatures
150 seconds
Behavioral task
behavioral2
Sample
Client-built.exe
Resource
win10v2004-20240226-en
18 signatures
150 seconds
General
- Target Client-built.exe
- Size 540KB
- Sample240327-3v8ykade83
- SHA256 c4b75cdc84b5570235c4568fd085b2f82e3fa7ce16e39d56fddc821416129efb
- MD5 eaa0ca9decc6b10f87a9ff57bbdd1941
- SHA1 7e86c621d0401f4d3168c448d638c1f4e85ae5b2
- SHA512 061217a50f40f372e25b707801a07f931900ab74cf951dd490249ceeb27b737717e37039c188db54a9aa4fae5f3b0a8236e13377c61552b5d45869995c8170d6
- SSDEEP 6144:TsTjI4aO2DTy3Oxqk/5LDARfoz1Vib62ithQKaVymuabY+F4IFGqStKEbxI2:2I4aO2v5Pofoz1VltD9mi+F3YyEbxZ
- MD5 SHA1 SHA512 SSDEEP
Score
10/10
Malware Config
Extracted
Family
-
quasar
Version
-
3.1.5.0
Botnet
-
MicrosoftEdge
C2
-
common-congratulations.gl.at.ply.gg:65362
-
127.0.0.1:65362
Mutex
-
QSR_MUTEX_MKoa3FQkTUYpcQOoO7
Attributes
-
encryption_key
4ScLZeaXkOHrLSyZOCm8
-
install_name
MicrosoftEdge.exe
-
log_directory
Logs
-
reconnect_delay
3000
-
startup_key
MicrosoftEdge
-
subdirectory
MicrosoftEdge
Signatures
- Quasar payload 3 IoCs
resource yara_rule behavioral2/memory/5056-1-0x0000000000850000-0x00000000008DE000-memory.dmp family_quasar behavioral2/files/0x0007000000023244-58.dat family_quasar behavioral2/memory/2696-75-0x0000000000990000-0x0000000000A1E000-memory.dmp family_quasar - Suspicious use of NtCreateUserProcessOtherParentProcess 2 IoCs
description pid Process procid_target PID 5056 created 632 5056 Client-built.exe 5 PID 2696 created 632 2696 MicrosoftEdge.exe 5 - Downloads MZ/PE file
- Executes dropped EXE 1 IoCs
pid Process 2696 MicrosoftEdge.exe - Legitimate hosting services abused for malware hosting/C2 1 TTPs 3 IoCs
flow ioc 18 raw.githubusercontent.com 19 raw.githubusercontent.com 26 raw.githubusercontent.com - Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 21 ip-api.com - Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 5056 set thread context of 3652 5056 Client-built.exe 90 PID 2696 set thread context of 3904 2696 MicrosoftEdge.exe 99 - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 2 IoCs
pid pid_target Process procid_target 2892 3904 WerFault.exe 99 2420 2696 WerFault.exe 96 - Checks SCSI registry key(s) 3 TTPs 3 IoCs
SCSI information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000 taskmgr.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\Properties\{b725f130-47ef-101a-a5f1-02608c9eebac}\000A taskmgr.exe Key value queried \REGISTRY\MACHINE\SYSTEM\ControlSet001\Enum\SCSI\Disk&Ven_DADY&Prod_HARDDISK\4&215468a5&0&000000\FriendlyName taskmgr.exe - Creates scheduled task(s) 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4848 SCHTASKS.exe 4152 schtasks.exe 4184 SCHTASKS.exe 4344 schtasks.exe - Suspicious behavior: EnumeratesProcesses 64 IoCs
pid Process 1540 taskmgr.exe 1540 taskmgr.exe 5056 Client-built.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 1540 taskmgr.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 1540 taskmgr.exe 1540 taskmgr.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 1540 taskmgr.exe 1540 taskmgr.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 1540 taskmgr.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 3652 dllhost.exe 2696 MicrosoftEdge.exe 3652 dllhost.exe 3652 dllhost.exe - Suspicious use of AdjustPrivilegeToken 11 IoCs
description pid Process Token: SeDebugPrivilege 1540 taskmgr.exe Token: SeSystemProfilePrivilege 1540 taskmgr.exe Token: SeCreateGlobalPrivilege 1540 taskmgr.exe Token: SeDebugPrivilege 5056 Client-built.exe Token: SeDebugPrivilege 5056 Client-built.exe Token: SeDebugPrivilege 3652 dllhost.exe Token: SeDebugPrivilege 2696 MicrosoftEdge.exe Token: SeDebugPrivilege 2696 MicrosoftEdge.exe Token: SeDebugPrivilege 3904 dllhost.exe Token: 33 1540 taskmgr.exe Token: SeIncBasePriorityPrivilege 1540 taskmgr.exe - Suspicious use of FindShellTrayWindow 40 IoCs
pid Process 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe - Suspicious use of SendNotifyMessage 39 IoCs
pid Process 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe 1540 taskmgr.exe - Suspicious use of SetWindowsHookEx 1 IoCs
pid Process 2696 MicrosoftEdge.exe - Suspicious use of WriteProcessMemory 46 IoCs
description pid Process procid_target PID 5056 wrote to memory of 4848 5056 Client-built.exe 87 PID 5056 wrote to memory of 4848 5056 Client-built.exe 87 PID 5056 wrote to memory of 4848 5056 Client-built.exe 87 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 5056 wrote to memory of 3652 5056 Client-built.exe 90 PID 3652 wrote to memory of 5056 3652 dllhost.exe 85 PID 5056 wrote to memory of 4152 5056 Client-built.exe 94 PID 5056 wrote to memory of 4152 5056 Client-built.exe 94 PID 5056 wrote to memory of 4152 5056 Client-built.exe 94 PID 3652 wrote to memory of 4152 3652 dllhost.exe 94 PID 3652 wrote to memory of 4152 3652 dllhost.exe 94 PID 5056 wrote to memory of 2696 5056 Client-built.exe 96 PID 5056 wrote to memory of 2696 5056 Client-built.exe 96 PID 5056 wrote to memory of 2696 5056 Client-built.exe 96 PID 3652 wrote to memory of 2696 3652 dllhost.exe 96 PID 3652 wrote to memory of 2696 3652 dllhost.exe 96 PID 2696 wrote to memory of 4184 2696 MicrosoftEdge.exe 97 PID 2696 wrote to memory of 4184 2696 MicrosoftEdge.exe 97 PID 2696 wrote to memory of 4184 2696 MicrosoftEdge.exe 97 PID 3652 wrote to memory of 4184 3652 dllhost.exe 97 PID 3652 wrote to memory of 4184 3652 dllhost.exe 97 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 2696 wrote to memory of 3904 2696 MicrosoftEdge.exe 99 PID 3652 wrote to memory of 3904 3652 dllhost.exe 99 PID 2696 wrote to memory of 4344 2696 MicrosoftEdge.exe 103 PID 2696 wrote to memory of 4344 2696 MicrosoftEdge.exe 103 PID 2696 wrote to memory of 4344 2696 MicrosoftEdge.exe 103 PID 2696 wrote to memory of 3676 2696 MicrosoftEdge.exe 120 PID 2696 wrote to memory of 3676 2696 MicrosoftEdge.exe 120 PID 2696 wrote to memory of 3676 2696 MicrosoftEdge.exe 120
Processes
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C:\Windows\system32\winlogon.exewinlogon.exe1⤵PID:632
-
C:\Windows\SysWOW64\dllhost.exeC:\Windows\SysWOW64\dllhost.exe /Processid:{af7721ae-47aa-4447-aa9d-7c57f37cba84}2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3652
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C:\Windows\SysWOW64\dllhost.exeC:\Windows\SysWOW64\dllhost.exe /Processid:{a36f4311-c7a4-4bf3-91b6-384cf5605826}2⤵
- Suspicious use of AdjustPrivilegeToken
PID:3904 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3904 -s 1883⤵
- Program crash
PID:2892
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-
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C:\Users\Admin\AppData\Local\Temp\Client-built.exe"C:\Users\Admin\AppData\Local\Temp\Client-built.exe"1⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5056 -
C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77Client-built.exe" /tr "'C:\Users\Admin\AppData\Local\Temp\Client-built.exe'" /sc onlogon /rl HIGHEST2⤵
- Creates scheduled task(s)
PID:4848
-
-
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "MicrosoftEdge" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\Client-built.exe" /rl HIGHEST /f2⤵
- Creates scheduled task(s)
PID:4152
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C:\Users\Admin\AppData\Roaming\MicrosoftEdge\MicrosoftEdge.exe"C:\Users\Admin\AppData\Roaming\MicrosoftEdge\MicrosoftEdge.exe"2⤵
- Suspicious use of NtCreateUserProcessOtherParentProcess
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2696 -
C:\Windows\SysWOW64\SCHTASKS.exe"SCHTASKS.exe" /create /tn "$77MicrosoftEdge.exe" /tr "'C:\Users\Admin\AppData\Roaming\MicrosoftEdge\MicrosoftEdge.exe'" /sc onlogon /rl HIGHEST3⤵
- Creates scheduled task(s)
PID:4184
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "MicrosoftEdge" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\MicrosoftEdge\MicrosoftEdge.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:4344
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C:\Windows\SysWOW64\schtasks.exe"schtasks" /delete /tn "MicrosoftEdge" /f3⤵PID:3676
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2696 -s 26723⤵
- Program crash
PID:2420
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-
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C:\Windows\system32\taskmgr.exe"C:\Windows\system32\taskmgr.exe" /41⤵
- Checks SCSI registry key(s)
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
PID:1540
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 3904 -ip 39041⤵PID:4460
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 528 -p 2696 -ip 26961⤵PID:400
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Roaming\MicrosoftEdge\MicrosoftEdge.exe
- Size 540KB
- SHA256 c4b75cdc84b5570235c4568fd085b2f82e3fa7ce16e39d56fddc821416129efb
- MD5 eaa0ca9decc6b10f87a9ff57bbdd1941
- SHA1 7e86c621d0401f4d3168c448d638c1f4e85ae5b2
- SHA512 061217a50f40f372e25b707801a07f931900ab74cf951dd490249ceeb27b737717e37039c188db54a9aa4fae5f3b0a8236e13377c61552b5d45869995c8170d6
- SSDEEP 6144:TsTjI4aO2DTy3Oxqk/5LDARfoz1Vib62ithQKaVymuabY+F4IFGqStKEbxI2:2I4aO2v5Pofoz1VltD9mi+F3YyEbxZ
- MD5 SHA1 SHA512 SSDEEP