Analysis
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max time kernel
14s -
max time network
11s -
platform
windows7_x64 -
resource
win7v20210408 -
submitted
07-05-2021 13:05
Static task
static1
Behavioral task
behavioral1
Sample
ECF21D23BC761CD82181A9C50C8E7323.exe
Resource
win7v20210408
Behavioral task
behavioral2
Sample
ECF21D23BC761CD82181A9C50C8E7323.exe
Resource
win10v20210410
General
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Target
ECF21D23BC761CD82181A9C50C8E7323.exe
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Size
1.4MB
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MD5
ecf21d23bc761cd82181a9c50c8e7323
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SHA1
4175dd599ca9dce7a9c4d2c7bcfdf4738164a162
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SHA256
f515d67b069dfb177559d773b872dfeacadbfbdb4dde4a7903357b6dc181087f
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SHA512
8843675a5354b74c18863c17053f64fef1c5d62cd0a6c84bf493bc50756dd389be45895de6c4a6ff5ea079ba22a1477bc1924a31928733f8797240e5ae779966
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
Processes:
HVNUhLUUhc.exeWYCT.exepid process 2016 HVNUhLUUhc.exe 1432 WYCT.exe -
Loads dropped DLL 2 IoCs
Processes:
ECF21D23BC761CD82181A9C50C8E7323.exeHVNUhLUUhc.exepid process 1632 ECF21D23BC761CD82181A9C50C8E7323.exe 2016 HVNUhLUUhc.exe -
Adds Run key to start application 2 TTPs 2 IoCs
Processes:
ECF21D23BC761CD82181A9C50C8E7323.exedescription ioc process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\"" ECF21D23BC761CD82181A9C50C8E7323.exe Key created \REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\RunOnce ECF21D23BC761CD82181A9C50C8E7323.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
WYCT.exedescription pid process target process PID 1432 set thread context of 1216 1432 WYCT.exe RegSvcs.exe -
Suspicious behavior: EnumeratesProcesses 7 IoCs
Processes:
HVNUhLUUhc.exeWYCT.exepid process 2016 HVNUhLUUhc.exe 2016 HVNUhLUUhc.exe 2016 HVNUhLUUhc.exe 2016 HVNUhLUUhc.exe 1432 WYCT.exe 1432 WYCT.exe 1432 WYCT.exe -
Suspicious use of AdjustPrivilegeToken 32 IoCs
Processes:
RegSvcs.exedescription pid process Token: SeImpersonatePrivilege 1216 RegSvcs.exe Token: SeTcbPrivilege 1216 RegSvcs.exe Token: SeChangeNotifyPrivilege 1216 RegSvcs.exe Token: SeCreateTokenPrivilege 1216 RegSvcs.exe Token: SeBackupPrivilege 1216 RegSvcs.exe Token: SeRestorePrivilege 1216 RegSvcs.exe Token: SeIncreaseQuotaPrivilege 1216 RegSvcs.exe Token: SeAssignPrimaryTokenPrivilege 1216 RegSvcs.exe Token: SeImpersonatePrivilege 1216 RegSvcs.exe Token: SeTcbPrivilege 1216 RegSvcs.exe Token: SeChangeNotifyPrivilege 1216 RegSvcs.exe Token: SeCreateTokenPrivilege 1216 RegSvcs.exe Token: SeBackupPrivilege 1216 RegSvcs.exe Token: SeRestorePrivilege 1216 RegSvcs.exe Token: SeIncreaseQuotaPrivilege 1216 RegSvcs.exe Token: SeAssignPrimaryTokenPrivilege 1216 RegSvcs.exe Token: SeImpersonatePrivilege 1216 RegSvcs.exe Token: SeTcbPrivilege 1216 RegSvcs.exe Token: SeChangeNotifyPrivilege 1216 RegSvcs.exe Token: SeCreateTokenPrivilege 1216 RegSvcs.exe Token: SeBackupPrivilege 1216 RegSvcs.exe Token: SeRestorePrivilege 1216 RegSvcs.exe Token: SeIncreaseQuotaPrivilege 1216 RegSvcs.exe Token: SeAssignPrimaryTokenPrivilege 1216 RegSvcs.exe Token: SeImpersonatePrivilege 1216 RegSvcs.exe Token: SeTcbPrivilege 1216 RegSvcs.exe Token: SeChangeNotifyPrivilege 1216 RegSvcs.exe Token: SeCreateTokenPrivilege 1216 RegSvcs.exe Token: SeBackupPrivilege 1216 RegSvcs.exe Token: SeRestorePrivilege 1216 RegSvcs.exe Token: SeIncreaseQuotaPrivilege 1216 RegSvcs.exe Token: SeAssignPrimaryTokenPrivilege 1216 RegSvcs.exe -
Suspicious use of WriteProcessMemory 21 IoCs
Processes:
ECF21D23BC761CD82181A9C50C8E7323.exeHVNUhLUUhc.exeWYCT.exeRegSvcs.exedescription pid process target process PID 1632 wrote to memory of 2016 1632 ECF21D23BC761CD82181A9C50C8E7323.exe HVNUhLUUhc.exe PID 1632 wrote to memory of 2016 1632 ECF21D23BC761CD82181A9C50C8E7323.exe HVNUhLUUhc.exe PID 1632 wrote to memory of 2016 1632 ECF21D23BC761CD82181A9C50C8E7323.exe HVNUhLUUhc.exe PID 1632 wrote to memory of 2016 1632 ECF21D23BC761CD82181A9C50C8E7323.exe HVNUhLUUhc.exe PID 2016 wrote to memory of 1432 2016 HVNUhLUUhc.exe WYCT.exe PID 2016 wrote to memory of 1432 2016 HVNUhLUUhc.exe WYCT.exe PID 2016 wrote to memory of 1432 2016 HVNUhLUUhc.exe WYCT.exe PID 2016 wrote to memory of 1432 2016 HVNUhLUUhc.exe WYCT.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1432 wrote to memory of 1216 1432 WYCT.exe RegSvcs.exe PID 1216 wrote to memory of 580 1216 RegSvcs.exe cmd.exe PID 1216 wrote to memory of 580 1216 RegSvcs.exe cmd.exe PID 1216 wrote to memory of 580 1216 RegSvcs.exe cmd.exe PID 1216 wrote to memory of 580 1216 RegSvcs.exe cmd.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\ECF21D23BC761CD82181A9C50C8E7323.exe"C:\Users\Admin\AppData\Local\Temp\ECF21D23BC761CD82181A9C50C8E7323.exe"1⤵
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HVNUhLUUhc.exeC:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HVNUhLUUhc.exe2⤵
- Executes dropped EXE
- Loads dropped DLL
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Roaming\WYCT.exe"C:\Users\Admin\AppData\Roaming\WYCT.exe" "C:\Users\Admin\AppData\Roaming\QDTac"3⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"4⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\SysWOW64\cmd.execmd /c ""C:\Users\Admin\AppData\Local\Temp\259292771.bat" "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe" "5⤵
Network
MITRE ATT&CK Matrix ATT&CK v6
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\Local\Temp\259292771.batMD5
3880eeb1c736d853eb13b44898b718ab
SHA14eec9d50360cd815211e3c4e6bdd08271b6ec8e6
SHA256936d9411d5226b7c5a150ecaf422987590a8870c8e095e1caa072273041a86e7
SHA5123eaa3dddd7a11942e75acd44208fbe3d3ff8f4006951cd970fb9ab748c160739409803450d28037e577443504707fc310c634e9dc54d0c25e8cfe6094f017c6b
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HVNUhLUUhc.exeMD5
a59141b12cc64d52f4785f6007abbf66
SHA19f0509932a0cfd50d5c38007361ddfc9bab8c5bf
SHA256663d9a51b07dd14b63261ac7049b885f6371bb46aa5f71a9501eeafad6f14016
SHA512cf44342dce70fb41b57aa1bb6da58af4463689af43fb9f83851ff95feeb152f500c3afa90d7f9db4f9cea2d8a54e9f1928df7380d3dd55f835ba340b7caa4f42
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\HVNUhLUUhc.exeMD5
a59141b12cc64d52f4785f6007abbf66
SHA19f0509932a0cfd50d5c38007361ddfc9bab8c5bf
SHA256663d9a51b07dd14b63261ac7049b885f6371bb46aa5f71a9501eeafad6f14016
SHA512cf44342dce70fb41b57aa1bb6da58af4463689af43fb9f83851ff95feeb152f500c3afa90d7f9db4f9cea2d8a54e9f1928df7380d3dd55f835ba340b7caa4f42
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\QDTacMD5
55af7b04f7c77d2d99b234c17bfe5296
SHA1af2aaf8c925893c872299248958688212fbf24bd
SHA256f23e23c993dd86101e730884c03e3e0ae62b866f35087146e8738ca7eef2b5b9
SHA5125cd2473fe69c5f819651f3a358caccc680cd6344453eb296dd5117473badf07778714f301b389041ea98eb44ec737706636418d5b5e1e09abdfb4a2d3777373b
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C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\WYCT.exeMD5
b06e67f9767e5023892d9698703ad098
SHA1acc07666f4c1d4461d3e1c263cf6a194a8dd1544
SHA2568498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
SHA5127972c78acebdd86c57d879c12cb407120155a24a52fda23ddb7d9e181dd59dac1eb74f327817adbc364d37c8dc704f8236f3539b4d3ee5a022814924a1616943
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C:\Users\Admin\AppData\Roaming\QDTacMD5
5fb74b11b33a01483d297c3440f5d8a4
SHA12470d19cdf9fb759a2a616cb111b9528a0f0ed8b
SHA256c7011f9efc1b48badca16733ba041e92c31e35e246ebb16cd17ac1ee6838b620
SHA512030216026bcd7af34d899d48e81928eba9bb6da5e8539d24233a6eadc92be6b9a9cdd6c20c990622dd96ab1ceb25b6381c61b3dd30518bdeb37f3301cfae2bbe
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C:\Users\Admin\AppData\Roaming\WYCT.exeMD5
b06e67f9767e5023892d9698703ad098
SHA1acc07666f4c1d4461d3e1c263cf6a194a8dd1544
SHA2568498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
SHA5127972c78acebdd86c57d879c12cb407120155a24a52fda23ddb7d9e181dd59dac1eb74f327817adbc364d37c8dc704f8236f3539b4d3ee5a022814924a1616943
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\Users\Admin\AppData\Local\Temp\IXP000.TMP\HVNUhLUUhc.exeMD5
a59141b12cc64d52f4785f6007abbf66
SHA19f0509932a0cfd50d5c38007361ddfc9bab8c5bf
SHA256663d9a51b07dd14b63261ac7049b885f6371bb46aa5f71a9501eeafad6f14016
SHA512cf44342dce70fb41b57aa1bb6da58af4463689af43fb9f83851ff95feeb152f500c3afa90d7f9db4f9cea2d8a54e9f1928df7380d3dd55f835ba340b7caa4f42
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\Users\Admin\AppData\Roaming\WYCT.exeMD5
b06e67f9767e5023892d9698703ad098
SHA1acc07666f4c1d4461d3e1c263cf6a194a8dd1544
SHA2568498900e57a490404e7ec4d8159bee29aed5852ae88bd484141780eaadb727bb
SHA5127972c78acebdd86c57d879c12cb407120155a24a52fda23ddb7d9e181dd59dac1eb74f327817adbc364d37c8dc704f8236f3539b4d3ee5a022814924a1616943
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memory/580-76-0x0000000000000000-mapping.dmp
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memory/1216-73-0x0000000000410621-mapping.dmp
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memory/1216-72-0x0000000000400000-0x0000000000419000-memory.dmpFilesize
100KB
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memory/1216-75-0x0000000000400000-0x0000000000419000-memory.dmpFilesize
100KB
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memory/1432-66-0x0000000000000000-mapping.dmp
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memory/2016-63-0x0000000075551000-0x0000000075553000-memory.dmpFilesize
8KB
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memory/2016-61-0x0000000000000000-mapping.dmp