Analysis
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max time kernel
140s -
max time network
156s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
04-02-2024 07:01
Static task
static1
Behavioral task
behavioral1
Sample
8e838a072bc5a7dffe12cfa15425a6c1.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
8e838a072bc5a7dffe12cfa15425a6c1.exe
Resource
win10v2004-20231215-en
General
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Target
8e838a072bc5a7dffe12cfa15425a6c1.exe
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Size
159KB
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MD5
8e838a072bc5a7dffe12cfa15425a6c1
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SHA1
aa9e8dfe5cff401e7a10b333307c7c27a738e1c7
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SHA256
17cdbe491e6632b19cd2ff3e7d849065398ab8c865f0c5824b06a608e0346790
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SHA512
17fa2bc425638ad070e3dac2e0bfef1c5afe314e7af2a58046dfe90a35f30154ba9504b6cc615d083160ccb42f8174b916e295121c85b50722f67a437e9e78e1
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SSDEEP
3072:Aja1EwdENasVEPXzbKyHwLR3Rt7qXPQjcU8w3kzDQ:Bd8CPXzbkt7qXPAcU8h/Q
Malware Config
Signatures
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Suspicious use of SetThreadContext 1 IoCs
Processes:
8e838a072bc5a7dffe12cfa15425a6c1.exedescription pid process target process PID 2360 set thread context of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe -
Processes:
IEXPLORE.EXEIEXPLORE.EXEdescription ioc process Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086392" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31086392" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "305305769" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "326719886" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\GPU\AdapterInfo = "vendorId=\"0x10de\",deviceID=\"0x8c\",subSysID=\"0x0\",revision=\"0x0\",version=\"10.0.19041.546\"hypervisor=\"No Hypervisor (No SLAT)\"" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31086392" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3D994080-C32B-11EE-B6AD-72AE6231743A} = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "305454481" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "413795074" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
Processes:
8e838a072bc5a7dffe12cfa15425a6c1.exepid process 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
8e838a072bc5a7dffe12cfa15425a6c1.exeIEXPLORE.EXEdescription pid process Token: SeDebugPrivilege 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe Token: SeDebugPrivilege 4276 IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
Processes:
IEXPLORE.EXEpid process 4112 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
Processes:
8e838a072bc5a7dffe12cfa15425a6c1.exeIEXPLORE.EXEIEXPLORE.EXEpid process 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 4112 IEXPLORE.EXE 4112 IEXPLORE.EXE 4276 IEXPLORE.EXE 4276 IEXPLORE.EXE 4276 IEXPLORE.EXE 4276 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 19 IoCs
Processes:
8e838a072bc5a7dffe12cfa15425a6c1.exe8e838a072bc5a7dffe12cfa15425a6c1.exeiexplore.exeIEXPLORE.EXEdescription pid process target process PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 2360 wrote to memory of 4908 2360 8e838a072bc5a7dffe12cfa15425a6c1.exe 8e838a072bc5a7dffe12cfa15425a6c1.exe PID 4908 wrote to memory of 2968 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe iexplore.exe PID 4908 wrote to memory of 2968 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe iexplore.exe PID 4908 wrote to memory of 2968 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe iexplore.exe PID 2968 wrote to memory of 4112 2968 iexplore.exe IEXPLORE.EXE PID 2968 wrote to memory of 4112 2968 iexplore.exe IEXPLORE.EXE PID 4112 wrote to memory of 4276 4112 IEXPLORE.EXE IEXPLORE.EXE PID 4112 wrote to memory of 4276 4112 IEXPLORE.EXE IEXPLORE.EXE PID 4112 wrote to memory of 4276 4112 IEXPLORE.EXE IEXPLORE.EXE PID 4908 wrote to memory of 4276 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe IEXPLORE.EXE PID 4908 wrote to memory of 4276 4908 8e838a072bc5a7dffe12cfa15425a6c1.exe IEXPLORE.EXE
Processes
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C:\Users\Admin\AppData\Local\Temp\8e838a072bc5a7dffe12cfa15425a6c1.exe"C:\Users\Admin\AppData\Local\Temp\8e838a072bc5a7dffe12cfa15425a6c1.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2360 -
C:\Users\Admin\AppData\Local\Temp\8e838a072bc5a7dffe12cfa15425a6c1.exeC:\Users\Admin\AppData\Local\Temp\8e838a072bc5a7dffe12cfa15425a6c1.exe2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4908 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:2968 -
C:\Program Files\Internet Explorer\IEXPLORE.EXE"C:\Program Files\Internet Explorer\IEXPLORE.EXE"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4112 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4112 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4276
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD552bfc02b370f1b48b834ce1c58ad6560
SHA1d3dbca3ed04caabf69ec8d525a83cde0919809cf
SHA256fce02a7cb2ed194e21949d8a394e69f1dd30c4c517addc831018b8a0b7235a97
SHA5125fb4c1b2d4173f5de1237e2fd55b9081b99756217d5d639da3e0e1bbe339d87be2e9b732ef783446bdedee2af8730e4bedb3184d58ba0bce0881ddc199495289
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5141c7802a3a301feb5a66cd714ed9256
SHA1491d52e6dcd815d73b741be67703257a6bac395d
SHA2564b59a3e1070bc59e2610b9601dc69d0af215b2cae71b07f69d3a11bff72be063
SHA512f33cba09cf722be94f1b91ce0606d5708fadc54480129505f29577177b3fb64aef7f7f22170eca8111fab90701d415a32a8521e740cfbb5126245dd551f02da4
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee