Analysis
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max time kernel
138s -
max time network
162s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
30/12/2023, 11:31
Static task
static1
Behavioral task
behavioral1
Sample
172f88d6876468eac5058d62c34d5168.exe
Resource
win7-20231215-en
General
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Target
172f88d6876468eac5058d62c34d5168.exe
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Size
136KB
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MD5
172f88d6876468eac5058d62c34d5168
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SHA1
0d43c39f26639d97cdc6f262bc47475f4e026ea8
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SHA256
e151ebfe6bc13e25d516821346952e1ed220b781860e9d9f215731aee1929142
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SHA512
54b7ecbc36976318e09f06b06f7f4997f1766288fa4d43011953a3001f1315a9f9d369f919a59ce50bd3cc3d286742d991061ff446ab4f3cfda8a46f6100ed70
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SSDEEP
768:K06R0UEgnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9ICY:gR0In3Pc0LCH9MtbvabUDzJYWu3Bb
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 4700 WaterMark.exe -
resource yara_rule behavioral2/memory/2228-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4700-23-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4700-25-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4700-22-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-3-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2228-2-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4700-34-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4700-35-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\WaterMark.exe 172f88d6876468eac5058d62c34d5168.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 172f88d6876468eac5058d62c34d5168.exe File opened for modification C:\Program Files (x86)\Microsoft\px8ABB.tmp 172f88d6876468eac5058d62c34d5168.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 2852 1188 WerFault.exe 90 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079447" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079447" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079447" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "274056411" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "306400764" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{3815EE48-A80A-11EE-BB4F-EAB06C7B55B6} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079447" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "274056411" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{380A03EC-A80A-11EE-BB4F-EAB06C7B55B6} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "263432119" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "263432119" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31079447" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31079447" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "306400764" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410812216" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\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-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-2398549320-3657759451-817663969-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe 4700 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 4700 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1136 iexplore.exe 1012 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1012 iexplore.exe 1012 iexplore.exe 1136 iexplore.exe 1136 iexplore.exe 4124 IEXPLORE.EXE 4124 IEXPLORE.EXE 2992 IEXPLORE.EXE 2992 IEXPLORE.EXE 4124 IEXPLORE.EXE 4124 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2228 172f88d6876468eac5058d62c34d5168.exe 4700 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 2228 wrote to memory of 4700 2228 172f88d6876468eac5058d62c34d5168.exe 92 PID 2228 wrote to memory of 4700 2228 172f88d6876468eac5058d62c34d5168.exe 92 PID 2228 wrote to memory of 4700 2228 172f88d6876468eac5058d62c34d5168.exe 92 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1188 4700 WaterMark.exe 90 PID 4700 wrote to memory of 1012 4700 WaterMark.exe 95 PID 4700 wrote to memory of 1012 4700 WaterMark.exe 95 PID 4700 wrote to memory of 1136 4700 WaterMark.exe 96 PID 4700 wrote to memory of 1136 4700 WaterMark.exe 96 PID 1012 wrote to memory of 2992 1012 iexplore.exe 98 PID 1012 wrote to memory of 2992 1012 iexplore.exe 98 PID 1012 wrote to memory of 2992 1012 iexplore.exe 98 PID 1136 wrote to memory of 4124 1136 iexplore.exe 97 PID 1136 wrote to memory of 4124 1136 iexplore.exe 97 PID 1136 wrote to memory of 4124 1136 iexplore.exe 97
Processes
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C:\Users\Admin\AppData\Local\Temp\172f88d6876468eac5058d62c34d5168.exe"C:\Users\Admin\AppData\Local\Temp\172f88d6876468eac5058d62c34d5168.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2228 -
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:4700 -
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:1012 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1012 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2992
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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:1136 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1136 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4124
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe1⤵PID:1188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1188 -s 2042⤵
- Program crash
PID:2852
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 416 -p 1188 -ip 11881⤵PID:1684
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{3815EE48-A80A-11EE-BB4F-EAB06C7B55B6}.dat
Filesize3KB
MD513b7bc2bc02db0b81f835aeab35c3a6d
SHA1f034ad8707cd1bb53cfc857a0230211ddd5d854d
SHA256b8fad7f973943d5ce39d51da58804b97b5bf36bd8d2f3a626c94713049d8268c
SHA51299c94a8221b71ae9300da3a2c31c9c241b4a72334acb9c8cd38bb7a0f1fdcfb1ef4e6eca3b1305ea63c304959522565cfae0540b3c93ee8d3c9e8e1afcfd1f6b
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee