Analysis
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max time kernel
2s -
max time network
40s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
25-08-2024 20:43
Behavioral task
behavioral1
Sample
b4a429673539fe0dc0b04c85e39d5840N.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
b4a429673539fe0dc0b04c85e39d5840N.exe
Resource
win10v2004-20240802-en
General
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Target
b4a429673539fe0dc0b04c85e39d5840N.exe
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Size
2.0MB
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MD5
b4a429673539fe0dc0b04c85e39d5840
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SHA1
4348979d2cce894bff02db01edc9cd79106dc2a0
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SHA256
2917617574cca91abeb83af357a3da52f7252355dab2e1e0fe1da9a0d10e98d6
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SHA512
2f1f6a36ed582fdbb6280eb8212609422c20cc5494dc91b6856967ae0afc7003d6d06a452b69029033b0b5f16b0e3e27e31ba1cefd829b42e5f02f29ed7af321
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SSDEEP
24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKY0:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yi
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 5 IoCs
Processes:
resource yara_rule \Users\Admin\AppData\Local\Temp\windef.exe family_quasar behavioral1/memory/2820-45-0x0000000000280000-0x00000000002DE000-memory.dmp family_quasar behavioral1/memory/2600-61-0x0000000000F30000-0x0000000000F8E000-memory.dmp family_quasar C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe family_quasar behavioral1/memory/1748-86-0x0000000000FC0000-0x000000000101E000-memory.dmp family_quasar -
Executes dropped EXE 3 IoCs
Processes:
vnc.exewindef.exewinsock.exepid process 2796 vnc.exe 2820 windef.exe 2600 winsock.exe -
Loads dropped DLL 13 IoCs
Processes:
b4a429673539fe0dc0b04c85e39d5840N.exeWerFault.exewindef.exepid process 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 3048 WerFault.exe 3048 WerFault.exe 3048 WerFault.exe 3048 WerFault.exe 2820 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:
b4a429673539fe0dc0b04c85e39d5840N.exedescription ioc process File opened (read-only) \??\h: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\i: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\k: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\t: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\z: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\e: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\n: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\w: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\x: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\l: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\o: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\p: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\r: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\s: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\u: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\y: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\j: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\b: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\g: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\m: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\q: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\v: b4a429673539fe0dc0b04c85e39d5840N.exe File opened (read-only) \??\a: b4a429673539fe0dc0b04c85e39d5840N.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 8 ip-api.com -
AutoIT Executable 1 IoCs
AutoIT scripts compiled to PE executables.
Processes:
resource yara_rule C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe autoit_exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
b4a429673539fe0dc0b04c85e39d5840N.exedescription pid process target process PID 2652 set thread context of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Program crash 2 IoCs
Processes:
WerFault.exeWerFault.exepid pid_target process 3048 2796 WerFault.exe 2116 1040 WerFault.exe vnc.exe -
System Location Discovery: System Language Discovery 1 TTPs 7 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
Processes:
b4a429673539fe0dc0b04c85e39d5840N.exevnc.exewindef.exeb4a429673539fe0dc0b04c85e39d5840N.exeschtasks.exeschtasks.exewinsock.exedescription ioc process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4a429673539fe0dc0b04c85e39d5840N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language vnc.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language windef.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language b4a429673539fe0dc0b04c85e39d5840N.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language schtasks.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language winsock.exe -
Scheduled Task/Job: Scheduled Task 1 TTPs 4 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
Processes:
schtasks.exeschtasks.exeschtasks.exeschtasks.exepid process 3040 schtasks.exe 2768 schtasks.exe 1836 schtasks.exe 1780 schtasks.exe -
Suspicious behavior: EnumeratesProcesses 2 IoCs
Processes:
b4a429673539fe0dc0b04c85e39d5840N.exepid process 2652 b4a429673539fe0dc0b04c85e39d5840N.exe 2652 b4a429673539fe0dc0b04c85e39d5840N.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
windef.exedescription pid process Token: SeDebugPrivilege 2820 windef.exe -
Suspicious use of WriteProcessMemory 35 IoCs
Processes:
b4a429673539fe0dc0b04c85e39d5840N.exevnc.exewindef.exedescription pid process target process PID 2652 wrote to memory of 2796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe vnc.exe PID 2652 wrote to memory of 2796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe vnc.exe PID 2652 wrote to memory of 2796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe vnc.exe PID 2652 wrote to memory of 2796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe vnc.exe PID 2796 wrote to memory of 1728 2796 vnc.exe svchost.exe PID 2796 wrote to memory of 1728 2796 vnc.exe svchost.exe PID 2796 wrote to memory of 1728 2796 vnc.exe svchost.exe PID 2796 wrote to memory of 1728 2796 vnc.exe svchost.exe PID 2652 wrote to memory of 2820 2652 b4a429673539fe0dc0b04c85e39d5840N.exe windef.exe PID 2652 wrote to memory of 2820 2652 b4a429673539fe0dc0b04c85e39d5840N.exe windef.exe PID 2652 wrote to memory of 2820 2652 b4a429673539fe0dc0b04c85e39d5840N.exe windef.exe PID 2652 wrote to memory of 2820 2652 b4a429673539fe0dc0b04c85e39d5840N.exe windef.exe PID 2796 wrote to memory of 1728 2796 vnc.exe svchost.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 796 2652 b4a429673539fe0dc0b04c85e39d5840N.exe b4a429673539fe0dc0b04c85e39d5840N.exe PID 2652 wrote to memory of 3040 2652 b4a429673539fe0dc0b04c85e39d5840N.exe schtasks.exe PID 2652 wrote to memory of 3040 2652 b4a429673539fe0dc0b04c85e39d5840N.exe schtasks.exe PID 2652 wrote to memory of 3040 2652 b4a429673539fe0dc0b04c85e39d5840N.exe schtasks.exe PID 2652 wrote to memory of 3040 2652 b4a429673539fe0dc0b04c85e39d5840N.exe schtasks.exe PID 2796 wrote to memory of 3048 2796 vnc.exe WerFault.exe PID 2796 wrote to memory of 3048 2796 vnc.exe WerFault.exe PID 2796 wrote to memory of 3048 2796 vnc.exe WerFault.exe PID 2796 wrote to memory of 3048 2796 vnc.exe WerFault.exe PID 2820 wrote to memory of 2768 2820 windef.exe schtasks.exe PID 2820 wrote to memory of 2768 2820 windef.exe schtasks.exe PID 2820 wrote to memory of 2768 2820 windef.exe schtasks.exe PID 2820 wrote to memory of 2768 2820 windef.exe schtasks.exe PID 2820 wrote to memory of 2600 2820 windef.exe winsock.exe PID 2820 wrote to memory of 2600 2820 windef.exe winsock.exe PID 2820 wrote to memory of 2600 2820 windef.exe winsock.exe PID 2820 wrote to memory of 2600 2820 windef.exe winsock.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\b4a429673539fe0dc0b04c85e39d5840N.exe"C:\Users\Admin\AppData\Local\Temp\b4a429673539fe0dc0b04c85e39d5840N.exe"1⤵
- Loads dropped DLL
- Enumerates connected drives
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2652 -
C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2796 -
C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k3⤵PID:1728
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2796 -s 1603⤵
- Loads dropped DLL
- Program crash
PID:3048 -
C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"2⤵
- Executes dropped EXE
- Loads dropped DLL
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2820 -
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⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:2768 -
C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"C:\Users\Admin\AppData\Roaming\SubDir\winsock.exe"3⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
PID:2600 -
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⤵
- Scheduled Task/Job: Scheduled Task
PID:1836 -
C:\Users\Admin\AppData\Local\Temp\b4a429673539fe0dc0b04c85e39d5840N.exe"C:\Users\Admin\AppData\Local\Temp\b4a429673539fe0dc0b04c85e39d5840N.exe"2⤵
- System Location Discovery: System Language Discovery
PID:796 -
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⤵
- System Location Discovery: System Language Discovery
- Scheduled Task/Job: Scheduled Task
PID:3040
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C:\Windows\system32\taskeng.exetaskeng.exe {433A2536-FD82-4C39-A061-9B50AD5340BD} S-1-5-21-2958949473-3205530200-1453100116-1000:WHMFPZKA\Admin:Interactive:[1]1⤵PID:2572
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C:\Users\Admin\btpanui\SystemPropertiesPerformance.exeC:\Users\Admin\btpanui\SystemPropertiesPerformance.exe2⤵PID:2172
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C:\Users\Admin\AppData\Local\Temp\vnc.exe"C:\Users\Admin\AppData\Local\Temp\vnc.exe"3⤵PID:1040
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C:\Windows\system32\svchost.exeC:\Windows\system32\svchost.exe -k4⤵PID:1308
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1040 -s 1804⤵
- Program crash
PID:2116 -
C:\Users\Admin\AppData\Local\Temp\windef.exe"C:\Users\Admin\AppData\Local\Temp\windef.exe"3⤵PID:1748
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C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"C:\Users\Admin\btpanui\SystemPropertiesPerformance.exe"3⤵PID:2196
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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 /F3⤵
- Scheduled Task/Job: Scheduled Task
PID:1780
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
211B
MD593a28012e467fae47909a7e7d77cf785
SHA1515fec95972652d34670c8394d0581b09c9c100e
SHA25680834956a754fadfcbaeb6b4d19977031a594bb288791b42fb70b68731bfc3e0
SHA512f3a1a870424b2a3e524832bd7fda55a6b6fd4ecc41142f753004ab0a3c4179b9783b540e463357eb02cfa6e852e08361d006c9dc20ec736007192461e43cda6d
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Filesize
2.0MB
MD56ac93b002987eb901d354e7d4293cf34
SHA1c6a0dc95c5f2e5fb497a861003e8cde82967a786
SHA2563a6d9bec5b9257a583e0df9165e8cfb40a8ed46dc239f7a02ce8d68f70b33791
SHA512566017c5c69b28115184a9b7e1e0783e23318859046d0316a0fa21e82e4309e97b112a5f6fe51430b38e395682fcb2925878bf05a3f286ae6dd2ce1eda458ecf
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Filesize
405KB
MD5b8ba87ee4c3fc085a2fed0d839aadce1
SHA1b3a2e3256406330e8b1779199bb2b9865122d766
SHA2564e8a99cd33c9e5c747a3ce8f1a3e17824846f4a8f7cb0631aebd0815db2ce3a4
SHA5127a775a12cd5bcd182d64be0d31f800b456ca6d1b531189cea9c72e1940871cfe92ccd005938f67bfa4784ae44c54b3a7ea29a5bb59766e98c78bf53b680f2ab2
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Filesize
349KB
MD5b4a202e03d4135484d0e730173abcc72
SHA101b30014545ea526c15a60931d676f9392ea0c70
SHA2567050608d53f80269df951d00883ed79815c060ce7678a76b5c3f6a2a985beea9
SHA512632a035a3b722ea29b02aad1f0da3df5bdc38abc7e6617223790955c6c0830f1070b528680416d5c63ea5e846074cdad87f06c21c35a77b1ccc4edc089d8b1fb