Analysis
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max time kernel
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max time network
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platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
27/03/2024, 13:22
Static task
static1
Behavioral task
behavioral1
Sample
e1c448b6b98a231ca9a8529f82eb702d.exe
Resource
win7-20240221-en
General
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Target
e1c448b6b98a231ca9a8529f82eb702d.exe
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Size
166KB
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MD5
e1c448b6b98a231ca9a8529f82eb702d
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SHA1
8d57de92ce60fbca562fef596006c7aa28885ed7
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SHA256
357ccf22db104e18215de1ee6e16817880594f488705b97f54d0b0599b2af29c
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SHA512
f13bb4ae08353308e47e330647ab7a2d1675ad1b07588dea7b8cba98777cdabf2c227f3c70d74793408a8d00993c265661f7f51705020aee65d5c4995858e3ee
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SSDEEP
3072:NdKFOoL16A4gVr9kYaQBqaFM2oVhyAn1+p:7KF/LAFgVrwwM2uf1W
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 2544 e1c448b6b98a231ca9a8529f82eb702dmgr.exe 3112 WaterMark.exe -
resource yara_rule behavioral2/memory/2544-10-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-13-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-14-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-15-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-17-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2544-18-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3112-31-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3112-40-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/3112-41-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxC20.tmp e1c448b6b98a231ca9a8529f82eb702dmgr.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe e1c448b6b98a231ca9a8529f82eb702dmgr.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe e1c448b6b98a231ca9a8529f82eb702dmgr.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4460 3368 WerFault.exe 102 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "3720592578" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3720592578" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096905" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31096905" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "3766062106" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31096905" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{0925BF9D-EC3D-11EE-B9F7-5E2396FD2BC6} = "0" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\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-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3808065738-1666277613-1125846146-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "418310718" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe 3112 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 3112 WaterMark.exe -
Suspicious use of FindShellTrayWindow 1 IoCs
pid Process 2864 iexplore.exe -
Suspicious use of SetWindowsHookEx 6 IoCs
pid Process 2864 iexplore.exe 2864 iexplore.exe 4596 IEXPLORE.EXE 4596 IEXPLORE.EXE 4596 IEXPLORE.EXE 4596 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2544 e1c448b6b98a231ca9a8529f82eb702dmgr.exe 3112 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 220 wrote to memory of 2544 220 e1c448b6b98a231ca9a8529f82eb702d.exe 100 PID 220 wrote to memory of 2544 220 e1c448b6b98a231ca9a8529f82eb702d.exe 100 PID 220 wrote to memory of 2544 220 e1c448b6b98a231ca9a8529f82eb702d.exe 100 PID 2544 wrote to memory of 3112 2544 e1c448b6b98a231ca9a8529f82eb702dmgr.exe 101 PID 2544 wrote to memory of 3112 2544 e1c448b6b98a231ca9a8529f82eb702dmgr.exe 101 PID 2544 wrote to memory of 3112 2544 e1c448b6b98a231ca9a8529f82eb702dmgr.exe 101 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 3368 3112 WaterMark.exe 102 PID 3112 wrote to memory of 2408 3112 WaterMark.exe 106 PID 3112 wrote to memory of 2408 3112 WaterMark.exe 106 PID 3112 wrote to memory of 2864 3112 WaterMark.exe 107 PID 3112 wrote to memory of 2864 3112 WaterMark.exe 107 PID 2864 wrote to memory of 4596 2864 iexplore.exe 108 PID 2864 wrote to memory of 4596 2864 iexplore.exe 108 PID 2864 wrote to memory of 4596 2864 iexplore.exe 108
Processes
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C:\Users\Admin\AppData\Local\Temp\e1c448b6b98a231ca9a8529f82eb702d.exe"C:\Users\Admin\AppData\Local\Temp\e1c448b6b98a231ca9a8529f82eb702d.exe"1⤵
- Suspicious use of WriteProcessMemory
PID:220 -
C:\Users\Admin\AppData\Local\Temp\e1c448b6b98a231ca9a8529f82eb702dmgr.exeC:\Users\Admin\AppData\Local\Temp\e1c448b6b98a231ca9a8529f82eb702dmgr.exe2⤵
- Executes dropped EXE
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2544 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"3⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:3112 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe4⤵PID:3368
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3368 -s 2085⤵
- Program crash
PID:4460
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
PID:2408
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C:\Program Files\Internet Explorer\iexplore.exe"C:\Program Files\Internet Explorer\iexplore.exe"4⤵
- Modifies Internet Explorer settings
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:2864 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2864 CREDAT:17410 /prefetch:25⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:4596
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3368 -ip 33681⤵PID:792
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C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4144 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:81⤵PID:4120
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee
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Filesize
96KB
MD58c51fd9d6daa7b6137634de19a49452c
SHA1db2a11cca434bacad2bf42adeecae38e99cf64f8
SHA256528d190fc376cff62a83391a5ba10ae4ef0c02bedabd0360274ddc2784e11da3
SHA512b93dd6c86d0618798a11dbaa2ded7dac659f6516ca4a87da7297601c27f340fffa4126a852c257654d562529273d8a3f639ec020ab54b879c68226deae549837