Analysis
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max time kernel
96s -
max time network
115s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
17-12-2024 13:14
Static task
static1
Behavioral task
behavioral1
Sample
213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe
Resource
win7-20241010-en
General
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Target
213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe
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Size
92KB
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MD5
f1263af9a4ed4288a9bb0d8214a6f040
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SHA1
9d835f7e7f92fd440fbd8fd5ed400b6b3e913a26
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SHA256
213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbf
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SHA512
4cb6f01d825ddf104946fa02871e7a3aa5575ef622e4dbdbb9ee4d926e05ac7b968f8e36989b7311eb0546ed366546d066292b3c7a5779a4503912fa5e23ff74
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SSDEEP
1536:YVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEM:InxwgxgfR/DVG7wBpEM
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 4564 WaterMark.exe -
resource yara_rule behavioral2/memory/3436-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-3-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3436-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4564-26-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4564-25-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4564-34-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4564-33-0x0000000000400000-0x0000000000431000-memory.dmp upx behavioral2/memory/4564-38-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4564-39-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px8899.tmp 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2756 428 WerFault.exe 83 -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150213" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EB773632-BC78-11EF-ADF2-468C69F2ED48} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\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 (data) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3219802674" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150213" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "441206275" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3219802674" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3221208887" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3221208887" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31150213" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EB799700-BC78-11EF-ADF2-468C69F2ED48} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-4089630652-1596403869-279772308-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31150213" IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe 4564 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4564 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 5068 iexplore.exe 3508 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 5068 iexplore.exe 5068 iexplore.exe 3508 iexplore.exe 3508 iexplore.exe 4336 IEXPLORE.EXE 4336 IEXPLORE.EXE 3976 IEXPLORE.EXE 3976 IEXPLORE.EXE 4336 IEXPLORE.EXE 4336 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 3436 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe 4564 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 3436 wrote to memory of 4564 3436 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe 82 PID 3436 wrote to memory of 4564 3436 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe 82 PID 3436 wrote to memory of 4564 3436 213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe 82 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 428 4564 WaterMark.exe 83 PID 4564 wrote to memory of 3508 4564 WaterMark.exe 87 PID 4564 wrote to memory of 3508 4564 WaterMark.exe 87 PID 4564 wrote to memory of 5068 4564 WaterMark.exe 88 PID 4564 wrote to memory of 5068 4564 WaterMark.exe 88 PID 3508 wrote to memory of 3976 3508 iexplore.exe 90 PID 3508 wrote to memory of 3976 3508 iexplore.exe 90 PID 3508 wrote to memory of 3976 3508 iexplore.exe 90 PID 5068 wrote to memory of 4336 5068 iexplore.exe 89 PID 5068 wrote to memory of 4336 5068 iexplore.exe 89 PID 5068 wrote to memory of 4336 5068 iexplore.exe 89
Processes
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C:\Users\Admin\AppData\Local\Temp\213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe"C:\Users\Admin\AppData\Local\Temp\213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbfN.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3436 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4564 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:428
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 428 -s 2044⤵
- Program crash
PID:2756
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"3⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3508 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3508 CREDAT:17410 /prefetch:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:3976
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"3⤵
- 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:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4336
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 428 -ip 4281⤵PID:3564
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
92KB
MD5f1263af9a4ed4288a9bb0d8214a6f040
SHA19d835f7e7f92fd440fbd8fd5ed400b6b3e913a26
SHA256213ad7fbfc95bb62b0353a8c3640ee7172d9541882c13229f8e9fde429f60cbf
SHA5124cb6f01d825ddf104946fa02871e7a3aa5575ef622e4dbdbb9ee4d926e05ac7b968f8e36989b7311eb0546ed366546d066292b3c7a5779a4503912fa5e23ff74
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD5641fd00a680e2a2b7c46da9f49d4ac01
SHA191342c03f46164a5ffba758b6201387912e09026
SHA25669b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d
SHA512004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5c4f6767d3c4311e09dcfbc54fea2c23e
SHA1dd3772427a58653ab79c311e2fdd3a654f22f250
SHA2565c14966aff827399d823c13f70287c67559a2cc21211c6cdb6f0b834856da5e5
SHA51290d4a65aeb205a05b60e5e561565133762a2f198075fca3f07ab89b79d9c68891c8f2884d4cad431e11674c6385103e8ca9d138f29a8ff0397b8f8b4ca4e9920
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EB773632-BC78-11EF-ADF2-468C69F2ED48}.dat
Filesize3KB
MD56796554e7a7d94d51ce7fbf5a1902ef5
SHA18d2cf6614c490cbfc7c6bd4053b9613ea2d46673
SHA25621f2b1b5d669444945a1b6953ce23f4e100e0205db9076975399cdde562c7eda
SHA5122d3eb4d6134fd0857ae6dac781c2698da289e2927c5ace3d550683896a5fc8cc54a1a853c958c8800fff0e9e010e4002e95d4055d616d4b9e2e95c7789bf3aaf
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EB799700-BC78-11EF-ADF2-468C69F2ED48}.dat
Filesize5KB
MD519592f1986003a4c94b3dd7afd069bd1
SHA1ef8f05b4d6339c287ca822cd10bc1e380c1f2a08
SHA256bcff292f4f80b24e52745416ec44598df569ef80f935342ddd51c84200949f3f
SHA512044747bf4acfd24cc5df74a11b686690d9da7ab96522443cf3090a84007a4bbeb7402c860e1646fa3eff1f6355b436306758fbc0ab126fe097f4e96610da87a6
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee