Analysis
- max time kernel
144s - max time network
156s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system - submitted
15/03/2024, 17:25
Static task
static1
1 signatures
Behavioral task
behavioral1
Sample
cbfdae7fe306137ec5b180a3f1cfbd40.exe
Resource
win7-20240221-en
10 signatures
150 seconds
General
- Target cbfdae7fe306137ec5b180a3f1cfbd40.exe
- Size 120KB
- Sample240315-vzf5caeb2x
- SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
- MD5 cbfdae7fe306137ec5b180a3f1cfbd40
- SHA1 52aa114df59c5acf175381e50d18cf53f1dd1334
- SHA512 13587853c4a6507726220b0a2f2209393c16b6124b306448f605b0b647548608f7794eae8c6cde4c5b80e1e7f33c87dbf38c5b116bb12c49aef71e9f1a2be52d
- SSDEEP 768:8QxkwieBsIqHpcrkMEYEhA7P4RhAtmaZFb79U9MKAjBEig6/1k21m3uHRdMNDj2Y:88kwiYTEhU4HDa1KkjWXUa21mc/Mue9
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Signatures
- Executes dropped EXE 1 IoCs
pid Process 2176 WaterMark.exe -
resource yara_rule behavioral2/memory/2176-7-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/4484-8-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/2176-20-0x0000000000400000-0x0000000000426000-memory.dmp upx behavioral2/memory/2176-21-0x0000000000400000-0x0000000000426000-memory.dmp upx - Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\px1FF.tmp cbfdae7fe306137ec5b180a3f1cfbd40.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe cbfdae7fe306137ec5b180a3f1cfbd40.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe cbfdae7fe306137ec5b180a3f1cfbd40.exe - Program crash 1 IoCs
pid pid_target Process procid_target 4792 1184 WerFault.exe 90 -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3969219435" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\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-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094525" IEXPLORE.EXE Set value (data) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31094525" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094525" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4021718037" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{17E20208-E2F1-11EE-BC63-F2C20ACFDC46} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "4021718037" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "417288537" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3969219435" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{17D15153-E2F1-11EE-BC63-F2C20ACFDC46} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31094525" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-513485977-2495024337-1260977654-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe - Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe 2176 WaterMark.exe - Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2176 WaterMark.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1416 iexplore.exe 3084 iexplore.exe - Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1416 iexplore.exe 1416 iexplore.exe 3084 iexplore.exe 3084 iexplore.exe 4612 IEXPLORE.EXE 4612 IEXPLORE.EXE 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE 4456 IEXPLORE.EXE - Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 4484 wrote to memory of 2176 4484 cbfdae7fe306137ec5b180a3f1cfbd40.exe 89 PID 4484 wrote to memory of 2176 4484 cbfdae7fe306137ec5b180a3f1cfbd40.exe 89 PID 4484 wrote to memory of 2176 4484 cbfdae7fe306137ec5b180a3f1cfbd40.exe 89 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1184 2176 WaterMark.exe 90 PID 2176 wrote to memory of 1416 2176 WaterMark.exe 97 PID 2176 wrote to memory of 1416 2176 WaterMark.exe 97 PID 2176 wrote to memory of 3084 2176 WaterMark.exe 98 PID 2176 wrote to memory of 3084 2176 WaterMark.exe 98 PID 1416 wrote to memory of 4456 1416 iexplore.exe 100 PID 1416 wrote to memory of 4456 1416 iexplore.exe 100 PID 1416 wrote to memory of 4456 1416 iexplore.exe 100 PID 3084 wrote to memory of 4612 3084 iexplore.exe 99 PID 3084 wrote to memory of 4612 3084 iexplore.exe 99 PID 3084 wrote to memory of 4612 3084 iexplore.exe 99
Processes
-
C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe"C:\Users\Admin\AppData\Local\Temp\cbfdae7fe306137ec5b180a3f1cfbd40.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
PID:4484 -
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 WriteProcessMemory
PID:2176 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:1184
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 2044⤵
- Program crash
PID:4792
-
-
-
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:1416 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1416 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4456
-
-
-
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:3084 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3084 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4612
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1184 -ip 11841⤵PID:960
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
- Path C:\Program Files (x86)\Microsoft\WaterMark.exe
- Size 120KB
- SHA256 1d8086cbd134f292febdf6bfa05b5de9ee836e9b806e088ff4f164d580d0c5b8
- MD5 cbfdae7fe306137ec5b180a3f1cfbd40
- SHA1 52aa114df59c5acf175381e50d18cf53f1dd1334
- SHA512 13587853c4a6507726220b0a2f2209393c16b6124b306448f605b0b647548608f7794eae8c6cde4c5b80e1e7f33c87dbf38c5b116bb12c49aef71e9f1a2be52d
- SSDEEP 768:8QxkwieBsIqHpcrkMEYEhA7P4RhAtmaZFb79U9MKAjBEig6/1k21m3uHRdMNDj2Y:88kwiYTEhU4HDa1KkjWXUa21mc/Mue9
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{17D15153-E2F1-11EE-BC63-F2C20ACFDC46}.dat
- Size 3KB
- SHA256 db5ef1e587be69d6cdb714d480ba7296ccfe8d5fb1ccd9c6da1148147cb708c8
- MD5 cdffa83e93b1834ef3f38e0ead9dd3ba
- SHA1 8c01ee0e64e7f00b4aecbaaca397803baf85b093
- SHA512 a6e2bfc6627fecd2a343137d24290f7302691cbc9df86fc9a6d00be2ae1b466315610e01a1ca65bf1298854c6512c1b96a0e0a085ced134ee6d9d2396e2a8df6
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{17E20208-E2F1-11EE-BC63-F2C20ACFDC46}.dat
- Size 5KB
- SHA256 eb4663580f3a786be46772306037a79aa83742d49c61e21c2d5d891538960bce
- MD5 da8dc4c6211e89c33405e8857200050d
- SHA1 61ab4bf8aae3950644f1c3848d62cefee3d340af
- SHA512 5e0ac20945f588eac82c6c838a4565aa8c4917895beeb5adb05b873fea4b49b6a5a1e71ef4be1ab7ac9dd7603b2365fb249ca1f654bd522249ee40c5d164390f
- SSDEEP 24:rsGo/Q4liDYGo/MliDLliD879lWrrqlY6s9lWrrqlY6S:rsGo44li0GoEliPliIC3qlBB3qlBS
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\ver88D2.tmp
- Size 15KB
- SHA256 557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
- MD5 1a545d0052b581fbb2ab4c52133846bc
- SHA1 62f3266a9b9925cd6d98658b92adec673cbe3dd3
- SHA512 bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
- SSDEEP 384:79Jv9DF9/C9qc9/J9V791T9TK9Xf9Nm9xQ95a9BR9fV:79Jv9DF9/C9qc9/J9V791T9TK9Xf9NmT
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\G7TWCMRP\suggestions[1].en-US
- Size 17KB
- SHA256 c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
- MD5 5a34cb996293fde2cb7a4ac89587393a
- SHA1 3c96c993500690d1a77873cd62bc639b3a10653f
- SHA512 e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
- SSDEEP 384:K4gN8sGygaEKfWYSJUKbO7UckxtBjCdY7mO3D0C5l+piEieDSV126ry1/XSGKwG3:K4gNFXiKfWfJ1Kockxbd7mAt5Mp5ie2F
- MD5 SHA1 SHA512 SSDEEP