Analysis
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max time kernel
3s -
max time network
121s -
platform
windows7_x64 -
resource
win7-20240221-en -
resource tags
arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system -
submitted
03-05-2024 01:48
Behavioral task
behavioral1
Sample
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe
Resource
win10v2004-20240419-en
General
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Target
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe
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Size
2.0MB
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MD5
4a19e3a1b37267e44d0eb478a766f211
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SHA1
28d0bc2dfe3affc380fe0bfdcd668801ddb72719
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SHA256
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6
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SHA512
45881f60fd71a2c40738a56c3b9815319234f72cde21e0bdf24b34b669d02e3604bf373ac94a81a3bf270142240c89a86828454813bcb93e8c16759d9f09edca
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYq:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yg
Malware Config
Extracted
quasar
1.3.0.0
EbayProfiles
5.8.88.191:443
sockartek.icu:443
QSR_MUTEX_0kBRNrRz5TDLEQouI0
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encryption_key
MWhG6wsClMX8aJM2CVXT
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install_name
winsock.exe
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log_directory
Logs
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reconnect_delay
3000
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startup_key
win defender run
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subdirectory
SubDir
Extracted
azorult
http://0x21.in:8000/_az/
Signatures
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Azorult
An information stealer that was first discovered in 2016, targeting browsing history and passwords.
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Quasar payload 3 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\windef.exe family_quasar behavioral1/memory/2676-46-0x00000000003D0000-0x000000000042E000-memory.dmp family_quasar behavioral1/memory/2796-58-0x0000000000F30000-0x0000000000F8E000-memory.dmp family_quasar -
Detects Windows executables referencing non-Windows User-Agents 3 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\windef.exe INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/2676-46-0x00000000003D0000-0x000000000042E000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral1/memory/2796-58-0x0000000000F30000-0x0000000000F8E000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
Detects executables containing common artifacts observed in infostealers 3 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\windef.exe INDICATOR_SUSPICIOUS_GENInfoStealer behavioral1/memory/2676-46-0x00000000003D0000-0x000000000042E000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer behavioral1/memory/2796-58-0x0000000000F30000-0x0000000000F8E000-memory.dmp INDICATOR_SUSPICIOUS_GENInfoStealer -
Executes dropped EXE 3 IoCs
Processes:
vnc.exewindef.exewinsock.exepid process 3036 vnc.exe 2676 windef.exe 2796 winsock.exe -
Loads dropped DLL 13 IoCs
Processes:
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exeWerFault.exewindef.exepid process 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2488 WerFault.exe 2488 WerFault.exe 2488 WerFault.exe 2488 WerFault.exe 2676 windef.exe -
Enumerates connected drives 3 TTPs 23 IoCs
Attempts to read the root path of hard drives other than the default C: drive.
Processes:
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exedescription ioc process File opened (read-only) \??\g: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\j: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\k: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\n: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\s: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\b: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\m: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\p: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\r: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\e: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\o: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\t: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\v: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\z: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\i: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\h: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\l: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\q: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\u: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\w: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\x: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\y: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe File opened (read-only) \??\a: a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 ip-api.com -
Suspicious use of SetThreadContext 1 IoCs
Processes:
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exedescription pid process target process PID 2220 set thread context of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2488 3036 WerFault.exe vnc.exe -
Creates scheduled task(s) 1 TTPs 3 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exepid process 2724 schtasks.exe 2052 schtasks.exe 2768 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exepid process 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
windef.exewinsock.exedescription pid process Token: SeDebugPrivilege 2676 windef.exe Token: SeDebugPrivilege 2796 winsock.exe -
Suspicious use of SetWindowsHookEx 1 IoCs
Processes:
winsock.exepid process 2796 winsock.exe -
Suspicious use of WriteProcessMemory 39 IoCs
Processes:
a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exevnc.exewindef.exewinsock.exedescription pid process target process PID 2220 wrote to memory of 3036 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe vnc.exe PID 2220 wrote to memory of 3036 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe vnc.exe PID 2220 wrote to memory of 3036 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe vnc.exe PID 2220 wrote to memory of 3036 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe vnc.exe PID 3036 wrote to memory of 2664 3036 vnc.exe svchost.exe PID 3036 wrote to memory of 2664 3036 vnc.exe svchost.exe PID 3036 wrote to memory of 2664 3036 vnc.exe svchost.exe PID 3036 wrote to memory of 2664 3036 vnc.exe svchost.exe PID 3036 wrote to memory of 2664 3036 vnc.exe svchost.exe PID 2220 wrote to memory of 2676 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe windef.exe PID 2220 wrote to memory of 2676 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe windef.exe PID 2220 wrote to memory of 2676 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe windef.exe PID 2220 wrote to memory of 2676 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe windef.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2732 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe PID 2220 wrote to memory of 2724 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe schtasks.exe PID 2220 wrote to memory of 2724 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe schtasks.exe PID 2220 wrote to memory of 2724 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe schtasks.exe PID 2220 wrote to memory of 2724 2220 a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe schtasks.exe PID 3036 wrote to memory of 2488 3036 vnc.exe WerFault.exe PID 3036 wrote to memory of 2488 3036 vnc.exe WerFault.exe PID 3036 wrote to memory of 2488 3036 vnc.exe WerFault.exe PID 3036 wrote to memory of 2488 3036 vnc.exe WerFault.exe PID 2676 wrote to memory of 2052 2676 windef.exe schtasks.exe PID 2676 wrote to memory of 2052 2676 windef.exe schtasks.exe PID 2676 wrote to memory of 2052 2676 windef.exe schtasks.exe PID 2676 wrote to memory of 2052 2676 windef.exe schtasks.exe PID 2676 wrote to memory of 2796 2676 windef.exe winsock.exe PID 2676 wrote to memory of 2796 2676 windef.exe winsock.exe PID 2676 wrote to memory of 2796 2676 windef.exe winsock.exe PID 2676 wrote to memory of 2796 2676 windef.exe winsock.exe PID 2796 wrote to memory of 2768 2796 winsock.exe schtasks.exe PID 2796 wrote to memory of 2768 2796 winsock.exe schtasks.exe PID 2796 wrote to memory of 2768 2796 winsock.exe schtasks.exe PID 2796 wrote to memory of 2768 2796 winsock.exe schtasks.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe"C:\Users\Admin\AppData\Local\Temp\a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2220 -
C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:3036 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵PID:2664
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3036 -s 1603⤵
- Loads dropped DLL
- Program crash
PID:2488 -
C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2676 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Local\Temp\windef.exe" /rl HIGHEST /f3⤵
- Creates scheduled task(s)
PID:2052 -
C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
- Executes dropped EXE
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Windows\SysWOW64\schtasks.exe"schtasks" /create /tn "win defender run" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe" /rl HIGHEST /f4⤵
- Creates scheduled task(s)
PID:2768 -
C:\Users\Admin\AppData\Local\Temp\a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe"C:\Users\Admin\AppData\Local\Temp\a66a1d39e93ecd9d3607502284071e5708c78c1092ded28e4c815538f94bdca6.exe"2⤵PID:2732
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\SysWOW64\schtasks.exe" /create /tn RtkAudioService64 /tr "C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe" /sc minute /mo 1 /F2⤵
- Creates scheduled task(s)
PID:2724
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
405KB
MD5b8ba87ee4c3fc085a2fed0d839aadce1
SHA1b3a2e3256406330e8b1779199bb2b9865122d766
SHA2564e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
SHA5127a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2
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Filesize
349KB
MD5b4a202e03d4135484d0e730173abcc72
SHA101b30014545ea526c15a60931d676f9392ea0c70
SHA2567050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
SHA512632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb