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Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
13/02/2024, 10:01
Behavioral task
behavioral1
Sample
992216b5af8c928d1e2cf4b1c94595a2.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
992216b5af8c928d1e2cf4b1c94595a2.exe
Resource
win10v2004-20231215-en
General
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Target
992216b5af8c928d1e2cf4b1c94595a2.exe
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Size
157KB
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MD5
992216b5af8c928d1e2cf4b1c94595a2
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SHA1
aa81a072b639be776170cb28f0d4c5f826c8a3dd
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SHA256
8ca085425f4a95646ed40fafe6ddf7e6a9d83306f5ce94fdfdf612ff0e1cdc29
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SHA512
3c8138744fe6244ed12de058583ad2935b92dccc9ca66a075c093d17ee08d7fce6451d5b7294850c5707daaaa94445324ce618bb03150309b77ff9ba1ec50c08
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SSDEEP
3072:UtzFZdNMB6+7PmCuW5HbfyfC/lSIJ2UbGsSAIySL6zuk:KBizqWZ6fC9SIAUb/q3L6q
Malware Config
Signatures
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resource yara_rule behavioral2/memory/4148-0-0x0000000000400000-0x0000000000455000-memory.dmp upx behavioral2/memory/4148-5-0x0000000000400000-0x0000000000455000-memory.dmp upx -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4148 set thread context of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "414583458" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2899934356" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{D86B2CF1-CA56-11EE-9ECD-52EF8B93895E} = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\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-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31088227" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2899934356" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2901497108" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2901497108" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31088227" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31088227" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-1232405761-1209240240-3206092754-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31088227" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 3 IoCs
pid Process 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 1644 992216b5af8c928d1e2cf4b1c94595a2.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 1644 992216b5af8c928d1e2cf4b1c94595a2.exe Token: SeDebugPrivilege 984 IEXPLORE.EXE -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 5068 IEXPLORE.EXE -
Suspicious use of SetWindowsHookEx 7 IoCs
pid Process 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 5068 IEXPLORE.EXE 5068 IEXPLORE.EXE 984 IEXPLORE.EXE 984 IEXPLORE.EXE 984 IEXPLORE.EXE 984 IEXPLORE.EXE -
Suspicious use of WriteProcessMemory 19 IoCs
description pid Process procid_target PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 4148 wrote to memory of 1644 4148 992216b5af8c928d1e2cf4b1c94595a2.exe 84 PID 1644 wrote to memory of 216 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 85 PID 1644 wrote to memory of 216 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 85 PID 1644 wrote to memory of 216 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 85 PID 216 wrote to memory of 5068 216 iexplore.exe 86 PID 216 wrote to memory of 5068 216 iexplore.exe 86 PID 5068 wrote to memory of 984 5068 IEXPLORE.EXE 87 PID 5068 wrote to memory of 984 5068 IEXPLORE.EXE 87 PID 5068 wrote to memory of 984 5068 IEXPLORE.EXE 87 PID 1644 wrote to memory of 984 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 87 PID 1644 wrote to memory of 984 1644 992216b5af8c928d1e2cf4b1c94595a2.exe 87
Processes
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C:\Users\Admin\AppData\Local\Temp\992216b5af8c928d1e2cf4b1c94595a2.exe"C:\Users\Admin\AppData\Local\Temp\992216b5af8c928d1e2cf4b1c94595a2.exe"1⤵
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4148 -
C:\Users\Admin\AppData\Local\Temp\992216b5af8c928d1e2cf4b1c94595a2.exe"C:\Users\Admin\AppData\Local\Temp\992216b5af8c928d1e2cf4b1c94595a2.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1644 -
C:\Program Files (x86)\Internet Explorer\iexplore.exe"C:\Program Files (x86)\Internet Explorer\iexplore.exe"3⤵
- Suspicious use of WriteProcessMemory
PID:216 -
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:5068 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5068 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:984
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD534a715b7eff98727a79196c12548166d
SHA1d5e289b29da4499777553a8a18000554d3664059
SHA2566b41a389423de69980de3d667fca2f72e5ce6224dcea62d765862d07e76f9f01
SHA51262de58bac2f19abcfd8503f2b0abf64872a6354c140e020975d40fda1c975ed3ccc9f05a58ab45663c3eee52dbb5d6974aca6df78f7e60e780f5320622516860
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD56c0cde026eb8ed2b5785f7ceacabbc59
SHA11233a9c81bee217a8264fd124cd4ca4d77bd7b74
SHA256e08c81297277702b9a5d067980bcfc7e85280a5ff193845a2ce6c854154fc48a
SHA51212b8bf4d7e714a86578c82a5ffeff0cb8689618d2563985f5f9e05c3cbc9e25390d9394b4bd035d9dfd5315e2bd899af853427f59e9ba35ae3d50e3446aeb0bc
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee