Analysis
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max time kernel
165s -
max time network
185s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
26-12-2023 16:07
Static task
static1
Behavioral task
behavioral1
Sample
7b738cb9a61a10ab1fc7041cc6254f3a.exe
Resource
win7-20231215-en
General
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Target
7b738cb9a61a10ab1fc7041cc6254f3a.exe
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Size
92KB
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MD5
7b738cb9a61a10ab1fc7041cc6254f3a
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SHA1
49c16f17896295f06704f7064b94d328d5a555f9
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SHA256
5ef1598a22f4f3ad2cadc8ed0779197cff0b470747395cd4e5c4f16110c9cb39
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SHA512
7bb616176dcd3183c6796664c6de74cc633fb4decd0606cad7c0b206025469398376277979e36ffe654bd6c84f6ed010377c155ddafe602cc32a3f846d00ffab
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SSDEEP
1536:wVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:AnxwgxgfR/DVG7wBpE
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 2692 WaterMark.exe -
resource yara_rule behavioral2/memory/976-1-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-2-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/976-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2692-23-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2692-32-0x0000000000400000-0x0000000000449000-memory.dmp upx behavioral2/memory/2692-33-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2692-34-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\WaterMark.exe 7b738cb9a61a10ab1fc7041cc6254f3a.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 7b738cb9a61a10ab1fc7041cc6254f3a.exe File opened for modification C:\Program Files (x86)\Microsoft\pxE4F1.tmp 7b738cb9a61a10ab1fc7041cc6254f3a.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2236 1388 WerFault.exe 92 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1281421824" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31080664" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6628D1C5-ACCB-11EE-8024-CAE9171F1CAB} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "411334988" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1007984409" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31080664" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1033607959" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31080664" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{6621AAF5-ACCB-11EE-8024-CAE9171F1CAB} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1281421824" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "1033607959" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31080664" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1007984409" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31080664" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31080664" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\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 (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\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 Key created \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3336304223-2978740688-3645194410-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe 2692 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2692 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 5116 iexplore.exe 2976 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 2976 iexplore.exe 2976 iexplore.exe 5116 iexplore.exe 5116 iexplore.exe 4112 IEXPLORE.EXE 4112 IEXPLORE.EXE 1028 IEXPLORE.EXE 1028 IEXPLORE.EXE 1028 IEXPLORE.EXE 1028 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 976 7b738cb9a61a10ab1fc7041cc6254f3a.exe 2692 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 976 wrote to memory of 2692 976 7b738cb9a61a10ab1fc7041cc6254f3a.exe 91 PID 976 wrote to memory of 2692 976 7b738cb9a61a10ab1fc7041cc6254f3a.exe 91 PID 976 wrote to memory of 2692 976 7b738cb9a61a10ab1fc7041cc6254f3a.exe 91 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 1388 2692 WaterMark.exe 92 PID 2692 wrote to memory of 2976 2692 WaterMark.exe 96 PID 2692 wrote to memory of 2976 2692 WaterMark.exe 96 PID 2692 wrote to memory of 5116 2692 WaterMark.exe 97 PID 2692 wrote to memory of 5116 2692 WaterMark.exe 97 PID 2976 wrote to memory of 4112 2976 iexplore.exe 99 PID 2976 wrote to memory of 4112 2976 iexplore.exe 99 PID 2976 wrote to memory of 4112 2976 iexplore.exe 99 PID 5116 wrote to memory of 1028 5116 iexplore.exe 98 PID 5116 wrote to memory of 1028 5116 iexplore.exe 98 PID 5116 wrote to memory of 1028 5116 iexplore.exe 98
Processes
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C:\Users\Admin\AppData\Local\Temp\7b738cb9a61a10ab1fc7041cc6254f3a.exe"C:\Users\Admin\AppData\Local\Temp\7b738cb9a61a10ab1fc7041cc6254f3a.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:976 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2692 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:1388
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1388 -s 1884⤵
- Program crash
PID:2236
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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:2976 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2976 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4112
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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:5116 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:5116 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1028
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1388 -ip 13881⤵PID:2328
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
92KB
MD57b738cb9a61a10ab1fc7041cc6254f3a
SHA149c16f17896295f06704f7064b94d328d5a555f9
SHA2565ef1598a22f4f3ad2cadc8ed0779197cff0b470747395cd4e5c4f16110c9cb39
SHA5127bb616176dcd3183c6796664c6de74cc633fb4decd0606cad7c0b206025469398376277979e36ffe654bd6c84f6ed010377c155ddafe602cc32a3f846d00ffab
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{6621AAF5-ACCB-11EE-8024-CAE9171F1CAB}.dat
Filesize3KB
MD509336d608a34688871a3f4a876a88641
SHA1a4f60db59a759684c6b152b6368b09a79c7b291c
SHA25609afc80f3182968d073468c531438b1ddf15ac9740a998b3fdf16bb8d8af87f8
SHA5120a8ba3bd44fddcf9268c2c21b045d97444293301514ad3b341f2ce73433b8b91c8a9b92337228f3954f0b2dba54f3f848c276aecb4dca6ac3671d6e4abc3af70
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{6628D1C5-ACCB-11EE-8024-CAE9171F1CAB}.dat
Filesize3KB
MD5652ea12f9907214577e1102a578203ab
SHA1f0713b703435a3348c783079ef9712081eb0e74f
SHA25681d579ce9e3d9cd6da99f368396f3b3b08f7107a0c6d36897dbaac1e1b1e4251
SHA512ea94434cecd4cd3627c9b3a2926b044809a06b4bd0c40b4a528e1815116744f50dfdd8719fc826c25b6146527a548a7a77bdde6a8a8e7b4e8886291605dc4bbc
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee