Analysis
- max time kernel
79s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system - submitted
21/03/2023, 14:31
Static task
static1
Behavioral task
behavioral1
Sample
9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe
Resource
win7-20230220-en
windows7-x64
1 signatures
150 seconds
General
- Target 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe
- Size 5.0MB
- Sample230321-rv1fmsda7v
- SHA256 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf
- MD5 4f253477a36850490e31add375d9cdad
- SHA1 0bbd876a81e43746595da1b71285ef6978ceb162
- SHA512 c3fd8354070103f423b937f0dbe8d4a1285494ea14e4a5748b4b9936d019a4b38dd65d447a3471a8ba41f21275c33800e756666c9ba450276c7cd0f7b420b8b8
- SSDEEP 98304:UJbMKqBTZlgY5FlcBfclcPi7LO049CDZe:MMKslMBfcc67LrHD8
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
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aurora
C2
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138.201.198.8:8081
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe - Executes dropped EXE 1 IoCs
pid Process 2836 build.exe - Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Program crash 1 IoCs
pid pid_target Process procid_target 1784 3272 WerFault.exe 23 - Suspicious behavior: EnumeratesProcesses 1 IoCs
pid Process 3272 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe - Suspicious use of AdjustPrivilegeToken 64 IoCs
description pid Process Token: SeDebugPrivilege 3272 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe Token: SeIncreaseQuotaPrivilege 3560 wmic.exe Token: SeSecurityPrivilege 3560 wmic.exe Token: SeTakeOwnershipPrivilege 3560 wmic.exe Token: SeLoadDriverPrivilege 3560 wmic.exe Token: SeSystemProfilePrivilege 3560 wmic.exe Token: SeSystemtimePrivilege 3560 wmic.exe Token: SeProfSingleProcessPrivilege 3560 wmic.exe Token: SeIncBasePriorityPrivilege 3560 wmic.exe Token: SeCreatePagefilePrivilege 3560 wmic.exe Token: SeBackupPrivilege 3560 wmic.exe Token: SeRestorePrivilege 3560 wmic.exe Token: SeShutdownPrivilege 3560 wmic.exe Token: SeDebugPrivilege 3560 wmic.exe Token: SeSystemEnvironmentPrivilege 3560 wmic.exe Token: SeRemoteShutdownPrivilege 3560 wmic.exe Token: SeUndockPrivilege 3560 wmic.exe Token: SeManageVolumePrivilege 3560 wmic.exe Token: 33 3560 wmic.exe Token: 34 3560 wmic.exe Token: 35 3560 wmic.exe Token: 36 3560 wmic.exe Token: SeIncreaseQuotaPrivilege 3560 wmic.exe Token: SeSecurityPrivilege 3560 wmic.exe Token: SeTakeOwnershipPrivilege 3560 wmic.exe Token: SeLoadDriverPrivilege 3560 wmic.exe Token: SeSystemProfilePrivilege 3560 wmic.exe Token: SeSystemtimePrivilege 3560 wmic.exe Token: SeProfSingleProcessPrivilege 3560 wmic.exe Token: SeIncBasePriorityPrivilege 3560 wmic.exe Token: SeCreatePagefilePrivilege 3560 wmic.exe Token: SeBackupPrivilege 3560 wmic.exe Token: SeRestorePrivilege 3560 wmic.exe Token: SeShutdownPrivilege 3560 wmic.exe Token: SeDebugPrivilege 3560 wmic.exe Token: SeSystemEnvironmentPrivilege 3560 wmic.exe Token: SeRemoteShutdownPrivilege 3560 wmic.exe Token: SeUndockPrivilege 3560 wmic.exe Token: SeManageVolumePrivilege 3560 wmic.exe Token: 33 3560 wmic.exe Token: 34 3560 wmic.exe Token: 35 3560 wmic.exe Token: 36 3560 wmic.exe Token: SeIncreaseQuotaPrivilege 3648 WMIC.exe Token: SeSecurityPrivilege 3648 WMIC.exe Token: SeTakeOwnershipPrivilege 3648 WMIC.exe Token: SeLoadDriverPrivilege 3648 WMIC.exe Token: SeSystemProfilePrivilege 3648 WMIC.exe Token: SeSystemtimePrivilege 3648 WMIC.exe Token: SeProfSingleProcessPrivilege 3648 WMIC.exe Token: SeIncBasePriorityPrivilege 3648 WMIC.exe Token: SeCreatePagefilePrivilege 3648 WMIC.exe Token: SeBackupPrivilege 3648 WMIC.exe Token: SeRestorePrivilege 3648 WMIC.exe Token: SeShutdownPrivilege 3648 WMIC.exe Token: SeDebugPrivilege 3648 WMIC.exe Token: SeSystemEnvironmentPrivilege 3648 WMIC.exe Token: SeRemoteShutdownPrivilege 3648 WMIC.exe Token: SeUndockPrivilege 3648 WMIC.exe Token: SeManageVolumePrivilege 3648 WMIC.exe Token: 33 3648 WMIC.exe Token: 34 3648 WMIC.exe Token: 35 3648 WMIC.exe Token: 36 3648 WMIC.exe - Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 3272 wrote to memory of 2836 3272 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe 93 PID 3272 wrote to memory of 2836 3272 9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe 93 PID 2836 wrote to memory of 3560 2836 build.exe 96 PID 2836 wrote to memory of 3560 2836 build.exe 96 PID 2836 wrote to memory of 4640 2836 build.exe 98 PID 2836 wrote to memory of 4640 2836 build.exe 98 PID 4640 wrote to memory of 3648 4640 cmd.exe 100 PID 4640 wrote to memory of 3648 4640 cmd.exe 100 PID 2836 wrote to memory of 2604 2836 build.exe 101 PID 2836 wrote to memory of 2604 2836 build.exe 101 PID 2604 wrote to memory of 4092 2604 cmd.exe 103 PID 2604 wrote to memory of 4092 2604 cmd.exe 103
Processes
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C:\Users\Admin\AppData\Local\Temp\9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe"C:\Users\Admin\AppData\Local\Temp\9d46f656238d21c07a1d280b8a23171d05ae87dbb136d4c0efefa578132058cf.exe"1⤵
- Checks computer location settings
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3272 -
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\build.exe"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\build.exe"2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:2836 -
C:\Windows\System32\Wbem\wmic.exewmic os get Caption3⤵
- Suspicious use of AdjustPrivilegeToken
PID:3560
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C:\Windows\system32\cmd.execmd /C "wmic path win32_VideoController get name"3⤵
- Suspicious use of WriteProcessMemory
PID:4640 -
C:\Windows\System32\Wbem\WMIC.exewmic path win32_VideoController get name4⤵
- Suspicious use of AdjustPrivilegeToken
PID:3648
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-
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C:\Windows\system32\cmd.execmd /C "wmic cpu get name"3⤵
- Suspicious use of WriteProcessMemory
PID:2604 -
C:\Windows\System32\Wbem\WMIC.exewmic cpu get name4⤵PID:4092
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-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3272 -s 23882⤵
- Program crash
PID:1784
-
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 468 -p 3272 -ip 32721⤵PID:948
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\RzLNTXYeUCWKsXbGyRAOmBTvKSJfjzaL
- Size 2KB
- SHA256 68cafb091d3642a1ad2440bdb51834086945ded836ea25c8f75de7e5fc568d85
- MD5 77e31b1123e94ce5720ceb729a425798
- SHA1 2b65c95f27d8dca23864a3ed4f78490039ae27bf
- SHA512 9c660381b859040e20745a1cf42646af3bd3780e2795a5ff3cedc61db9877b608d1fc431a1bd3ba3f25dd3643898b1c0f2abfc067c6634e4ce65de2d4c0c724a
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Temp\nJObCsNVlgTeMaPEZQleQYhYzRyWJjPj
- Size 71KB
- SHA256 448b329f3a10bbe3e8f86cd91509c2783b63d28a375231eb23724f5e141420f2
- MD5 386c014d0948d4fc41afa98cfca9022e
- SHA1 786cc52d9b962f55f92202c7d50c3707eb62607b
- SHA512 13d46209c6b052977d6242763b54ac5e35b389e765c82ba773b520ebf5eacabdfdc22b642cb9760e39ad59dd82fa40a31a8d41fd6dd7ea9c9ad08c57b7d8150f
- SSDEEP 1536:5KYk/Q/OccbxYiWU/vXyVOlgZiHGOM7nF+ABbauqzgC:8H/Q/6Zp/viVwg0GOM7VzC
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\build.exe
- Size 3.0MB
- SHA256 a7e18f8334187302d07b411518c03f7b472b7ba17751e6f5d239541105aedd36
- MD5 a22f4f4fd882dc77ae4adcf180d34f1a
- SHA1 b630ffa68e2fe05f60dec473368354e8c07a53c5
- SHA512 1f1e5cb83dc8b95630702faea3107ffd6929dcbad1b30b5b7d77d5b7284d883a60fac0d802e7b9b624b45ee0362af08d5d8426b5d010e0f71cc1bd01c46a329e
- SSDEEP 49152:KGX3o2lDES/ed3+XMxfE36PalsLFA8ppBnVIk1o:goELE+LO8pTA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\build.exe
- Size 3.0MB
- SHA256 a7e18f8334187302d07b411518c03f7b472b7ba17751e6f5d239541105aedd36
- MD5 a22f4f4fd882dc77ae4adcf180d34f1a
- SHA1 b630ffa68e2fe05f60dec473368354e8c07a53c5
- SHA512 1f1e5cb83dc8b95630702faea3107ffd6929dcbad1b30b5b7d77d5b7284d883a60fac0d802e7b9b624b45ee0362af08d5d8426b5d010e0f71cc1bd01c46a329e
- SSDEEP 49152:KGX3o2lDES/ed3+XMxfE36PalsLFA8ppBnVIk1o:goELE+LO8pTA
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\build.exe
- Size 3.0MB
- SHA256 a7e18f8334187302d07b411518c03f7b472b7ba17751e6f5d239541105aedd36
- MD5 a22f4f4fd882dc77ae4adcf180d34f1a
- SHA1 b630ffa68e2fe05f60dec473368354e8c07a53c5
- SHA512 1f1e5cb83dc8b95630702faea3107ffd6929dcbad1b30b5b7d77d5b7284d883a60fac0d802e7b9b624b45ee0362af08d5d8426b5d010e0f71cc1bd01c46a329e
- SSDEEP 49152:KGX3o2lDES/ed3+XMxfE36PalsLFA8ppBnVIk1o:goELE+LO8pTA
- MD5 SHA1 SHA512 SSDEEP