Analysis
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max time kernel
153s -
max time network
187s -
platform
windows7_x64 -
resource
win7-20220812-en -
resource tags
arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system -
submitted
06/11/2022, 09:00
Static task
static1
Behavioral task
behavioral1
Sample
4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe
Resource
win7-20220812-en
General
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Target
4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe
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Size
126KB
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MD5
131d36fb1f24847f7b861246b9eecb82
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SHA1
024c063173f9fd377247deae0b01404af51146ef
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SHA256
4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f
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SHA512
e05c76d39e8c437dc222744b07a19e6c652f5770122aec03182710762330b0cc1017ab407f57c27a1064513d749d9c3b22bcdcf93623bfc92dfa0a06bc1b3730
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SSDEEP
768:106R0UugnKqGR7//GPc0LOBhvBrHks3IiyhDYQbGmxlNaM+WGa1wuxnzgOYw9IC3:jR0Cn3Pc0LCH9MtbvabUDzJYWu3Bg
Malware Config
Signatures
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Modifies WinLogon for persistence 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,c:\\program files (x86)\\microsoft\\watermark.exe" svchost.exe -
Executes dropped EXE 1 IoCs
pid Process 1668 WaterMark.exe -
resource yara_rule behavioral1/memory/1948-57-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/1948-58-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/1948-63-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral1/memory/1668-70-0x0000000000400000-0x0000000000444000-memory.dmp upx behavioral1/memory/1668-81-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Loads dropped DLL 2 IoCs
pid Process 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe -
Drops file in System32 directory 2 IoCs
description ioc Process File created C:\Windows\SysWOW64\dmlconf.dat svchost.exe File opened for modification C:\Windows\SysWOW64\dmlconf.dat svchost.exe -
Drops file in Program Files directory 4 IoCs
description ioc Process File created C:\Program Files (x86)\Microsoft\WaterMark.exe 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe svchost.exe File opened for modification C:\Program Files (x86)\Microsoft\pxBC8C.tmp 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "374499462" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{FFB3F930-5DC6-11ED-A674-466E2F293893} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\PageSetup iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\InternetRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive\{FFB3D220-5DC6-11ED-A674-466E2F293893} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DOMStorage iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\GPU iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3d0000003d000000c3040000a2020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IntelliForms iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\BrowserEmulation\LowMic iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\LowRegistry\DontShowMeThisDialogAgain iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Zoom iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\IETld\LowMic iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 8 IoCs
pid Process 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe 1668 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1668 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1168 iexplore.exe 1240 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1240 iexplore.exe 1240 iexplore.exe 1168 iexplore.exe 1168 iexplore.exe 820 IEXPLORE.EXE 668 IEXPLORE.EXE 668 IEXPLORE.EXE 820 IEXPLORE.EXE 668 IEXPLORE.EXE 668 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 1668 WaterMark.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1948 wrote to memory of 1668 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 28 PID 1948 wrote to memory of 1668 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 28 PID 1948 wrote to memory of 1668 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 28 PID 1948 wrote to memory of 1668 1948 4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe 28 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 972 1668 WaterMark.exe 29 PID 1668 wrote to memory of 1240 1668 WaterMark.exe 30 PID 1668 wrote to memory of 1240 1668 WaterMark.exe 30 PID 1668 wrote to memory of 1240 1668 WaterMark.exe 30 PID 1668 wrote to memory of 1240 1668 WaterMark.exe 30 PID 1668 wrote to memory of 1168 1668 WaterMark.exe 31 PID 1668 wrote to memory of 1168 1668 WaterMark.exe 31 PID 1668 wrote to memory of 1168 1668 WaterMark.exe 31 PID 1668 wrote to memory of 1168 1668 WaterMark.exe 31 PID 1240 wrote to memory of 668 1240 iexplore.exe 33 PID 1240 wrote to memory of 668 1240 iexplore.exe 33 PID 1240 wrote to memory of 668 1240 iexplore.exe 33 PID 1240 wrote to memory of 668 1240 iexplore.exe 33 PID 1168 wrote to memory of 820 1168 iexplore.exe 34 PID 1168 wrote to memory of 820 1168 iexplore.exe 34 PID 1168 wrote to memory of 820 1168 iexplore.exe 34 PID 1168 wrote to memory of 820 1168 iexplore.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe"C:\Users\Admin\AppData\Local\Temp\4a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f.exe"1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1948 -
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:1668 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Drops file in Program Files directory
PID:972
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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:1240 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1240 CREDAT:275457 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:668
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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:1168 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1168 CREDAT:275457 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:820
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
126KB
MD5131d36fb1f24847f7b861246b9eecb82
SHA1024c063173f9fd377247deae0b01404af51146ef
SHA2564a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f
SHA512e05c76d39e8c437dc222744b07a19e6c652f5770122aec03182710762330b0cc1017ab407f57c27a1064513d749d9c3b22bcdcf93623bfc92dfa0a06bc1b3730
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Filesize
126KB
MD5131d36fb1f24847f7b861246b9eecb82
SHA1024c063173f9fd377247deae0b01404af51146ef
SHA2564a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f
SHA512e05c76d39e8c437dc222744b07a19e6c652f5770122aec03182710762330b0cc1017ab407f57c27a1064513d749d9c3b22bcdcf93623bfc92dfa0a06bc1b3730
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FFB3D220-5DC6-11ED-A674-466E2F293893}.dat
Filesize3KB
MD51c4885feca2ba3cd9db7c77b35ce9fb6
SHA15a8833a5e9d8540f9ef5251995c5481407be62c2
SHA256f2c7cf177251a4cbb7472c1e8580c63b57fc2fa5a879130612c7830de816c264
SHA512a8f2577de0a131152ff5a0cdd53ceb2b8680625961747d40bc723ddc1fa3cece1c472709ee8aba67189194b5a4e697eeaf9bdb3732fb48aa6d2d06f725aac640
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{FFB3F930-5DC6-11ED-A674-466E2F293893}.dat
Filesize5KB
MD5271d4df766cdb00af15cce31aafc86fe
SHA167ea71d585cd725cfa38ce6a1af9b8a5ee095fe2
SHA25636c535959ab271596fd98c352a972651d0ade4a631d7a3ed91f51b05d16d6908
SHA51232c61601879805aa25614cea93de6ca2f3bed0b37b9a0fb37a7bd03ad5b39e51f320eec7e109b12c91d856edfddbdf6c3a7ecb9208b5a98eae46d988e0c82d26
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Filesize
603B
MD5082b5304e7ead2d96cfde545e31f0b77
SHA1d55f0012e1d41468b1c4bbf4f8f2fa3f57f3b300
SHA2560d1eeef19ddffab1904962184c7fe27a2367affffde4d25e565788554da91a9f
SHA5126fe883edcc33993a9fc30bff8f035a80e433631f0f24564c8b670f00ea6fa39982c91369877aae2b0bb9127e2c1961b0b0bb11169457c11470d725e56a0ee0fd
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Filesize
126KB
MD5131d36fb1f24847f7b861246b9eecb82
SHA1024c063173f9fd377247deae0b01404af51146ef
SHA2564a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f
SHA512e05c76d39e8c437dc222744b07a19e6c652f5770122aec03182710762330b0cc1017ab407f57c27a1064513d749d9c3b22bcdcf93623bfc92dfa0a06bc1b3730
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Filesize
126KB
MD5131d36fb1f24847f7b861246b9eecb82
SHA1024c063173f9fd377247deae0b01404af51146ef
SHA2564a0c9a68ecf1ec1ed13f0bf696e94c8fd51a522cf1fb74ff8b353065fae4772f
SHA512e05c76d39e8c437dc222744b07a19e6c652f5770122aec03182710762330b0cc1017ab407f57c27a1064513d749d9c3b22bcdcf93623bfc92dfa0a06bc1b3730