Analysis
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max time kernel
136s -
max time network
153s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
25/12/2023, 05:23
Static task
static1
Behavioral task
behavioral1
Sample
07baf8c70bc24883ae7a15fcb4445c33.exe
Resource
win7-20231215-en
General
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Target
07baf8c70bc24883ae7a15fcb4445c33.exe
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Size
127KB
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MD5
07baf8c70bc24883ae7a15fcb4445c33
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SHA1
463c23d8df22bdaabdfa3751eb4b816f9ff0e325
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SHA256
712c71b9c476ef9ac415de7432fa231661473fead108cd4d09c7ca54081b00a4
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SHA512
782f1ad21eb8a41a2d640d162af3e5214d24864cfb2e10201e4ac8387bdabfcd8251166056f06ab040a9cc30cd0c107a0079d50d767d019df0d2c0631907e8ed
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SSDEEP
768:f06R0UcegnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9I/:FR0Ddn3Pc0LCH9MtbvabUDzJYWu3B
Malware Config
Signatures
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Executes dropped EXE 1 IoCs
pid Process 1108 WaterMark.exe -
resource yara_rule behavioral2/memory/4348-3-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-7-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1108-28-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1108-27-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/4348-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1108-37-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1108-38-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px4844.tmp 07baf8c70bc24883ae7a15fcb4445c33.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 07baf8c70bc24883ae7a15fcb4445c33.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 07baf8c70bc24883ae7a15fcb4445c33.exe -
Program crash 1 IoCs
pid pid_target Process 2976 404 WerFault.exe -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3283250988" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078524" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3285907121" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3283250988" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3283250988" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078524" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3285907121" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078524" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078524" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078524" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078524" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078524" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3293251265" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410416090" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EEB77466-A46F-11EE-8184-CA152A8DAB80} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078524" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3283250988" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{EEB2AEF5-A46F-11EE-8184-CA152A8DAB80} = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3293251265" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\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-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-768304381-2824894965-3840216961-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe 1108 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1108 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1736 iexplore.exe 4748 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 4748 iexplore.exe 1736 iexplore.exe 4748 iexplore.exe 1736 iexplore.exe 2768 IEXPLORE.EXE 2768 IEXPLORE.EXE 1616 IEXPLORE.EXE 1616 IEXPLORE.EXE 2768 IEXPLORE.EXE 2768 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 4348 07baf8c70bc24883ae7a15fcb4445c33.exe 1108 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 4348 wrote to memory of 1108 4348 07baf8c70bc24883ae7a15fcb4445c33.exe 95 PID 4348 wrote to memory of 1108 4348 07baf8c70bc24883ae7a15fcb4445c33.exe 95 PID 4348 wrote to memory of 1108 4348 07baf8c70bc24883ae7a15fcb4445c33.exe 95 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 404 1108 WaterMark.exe 94 PID 1108 wrote to memory of 4748 1108 WaterMark.exe 98 PID 1108 wrote to memory of 4748 1108 WaterMark.exe 98 PID 1108 wrote to memory of 1736 1108 WaterMark.exe 99 PID 1108 wrote to memory of 1736 1108 WaterMark.exe 99 PID 4748 wrote to memory of 1616 4748 iexplore.exe 101 PID 4748 wrote to memory of 1616 4748 iexplore.exe 101 PID 4748 wrote to memory of 1616 4748 iexplore.exe 101 PID 1736 wrote to memory of 2768 1736 iexplore.exe 100 PID 1736 wrote to memory of 2768 1736 iexplore.exe 100 PID 1736 wrote to memory of 2768 1736 iexplore.exe 100
Processes
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C:\Users\Admin\AppData\Local\Temp\07baf8c70bc24883ae7a15fcb4445c33.exe"C:\Users\Admin\AppData\Local\Temp\07baf8c70bc24883ae7a15fcb4445c33.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:4348 -
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:1108 -
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:4748 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4748 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1616
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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:1736 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1736 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2768
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 404 -ip 4041⤵PID:1880
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 404 -s 841⤵
- Program crash
PID:2976
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe1⤵PID:404
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
127KB
MD507baf8c70bc24883ae7a15fcb4445c33
SHA1463c23d8df22bdaabdfa3751eb4b816f9ff0e325
SHA256712c71b9c476ef9ac415de7432fa231661473fead108cd4d09c7ca54081b00a4
SHA512782f1ad21eb8a41a2d640d162af3e5214d24864cfb2e10201e4ac8387bdabfcd8251166056f06ab040a9cc30cd0c107a0079d50d767d019df0d2c0631907e8ed
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EEB2AEF5-A46F-11EE-8184-CA152A8DAB80}.dat
Filesize3KB
MD5b26a945a102038924a2305fe9caf86c4
SHA16a8767476242084ae717c3ef83c988cec85c8c28
SHA256e7b9f85d045a3137ef436ca2d0434982ded5c9c4e0242a60582bb8cbe6264af6
SHA512e1a3b626ec484016b34bffd9807dffb3632308f9717ad6d7a1686096541a86b61ad05591598b5f96d224e08a18ee881f3cb1281a58313db29e047b6b8ef45ed4
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{EEB77466-A46F-11EE-8184-CA152A8DAB80}.dat
Filesize5KB
MD597066b6c9166eb735d8582300e116a6a
SHA1d239752b1e526531d894ded38ea34062465caf3b
SHA256e798b6f6b5adea25c6c6848f746e34b52283b112efd01e920e57ee1cc6ca9389
SHA512a0fc02d2ef5f00dd7b49ce11f18d50defc886176126218ab05395def8d438e3f2e150aafdb9e115c5aa291e8fc9936fc8215370a338a1bc7fa9375bd4901c79d
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Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee