Analysis
-
max time kernel
146s -
max time network
172s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
24/12/2023, 15:39
Static task
static1
Behavioral task
behavioral1
Sample
0421857eaa36c8b74155d7950e709ae6.exe
Resource
win7-20231129-en
General
-
Target
0421857eaa36c8b74155d7950e709ae6.exe
-
Size
92KB
-
MD5
0421857eaa36c8b74155d7950e709ae6
-
SHA1
e5c75a8679787d64e80605ca7e979b533a7962a5
-
SHA256
eb09851c234dd55c561d12e70d6eb347e364aa1240d9ee7156fe44188d5b206f
-
SHA512
3fb3850550bef85cb87078c2bb10aa2a78c592188ee4d691ee3ec88b90df1dcc47b32b13b2da95a301606b3ea588faf5868d8dfceb5a956994054f4161c15484
-
SSDEEP
1536:EVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApE:UnxwgxgfR/DVG7wBpE
Malware Config
Signatures
-
Executes dropped EXE 1 IoCs
pid Process 1592 WaterMark.exe -
resource yara_rule behavioral2/memory/2972-2-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-1-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-3-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/2972-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1592-18-0x0000000000400000-0x0000000000461000-memory.dmp upx behavioral2/memory/1592-25-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1592-35-0x0000000000400000-0x0000000000461000-memory.dmp upx behavioral2/memory/1592-36-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1592-37-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxC6CA.tmp 0421857eaa36c8b74155d7950e709ae6.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 0421857eaa36c8b74155d7950e709ae6.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 0421857eaa36c8b74155d7950e709ae6.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 3168 4776 WerFault.exe 90 -
description ioc Process Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2372655769" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "410219290" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\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-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLHighDateTime = "50" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "2474688041" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B82BB990-A2A5-11EE-BCD9-DE9D3A49EF0E} = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2372655769" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078066" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31078066" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078066" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateLowDateTime = "2474688041" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastUpdateHighDateTime = "31078066" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{B82490B4-A2A5-11EE-BCD9-DE9D3A49EF0E} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-996941297-2279405024-2328152752-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastTTLLowDateTime = "1251635200" iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe 1592 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 1592 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 404 iexplore.exe 3448 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 404 iexplore.exe 404 iexplore.exe 3448 iexplore.exe 3448 iexplore.exe 2504 IEXPLORE.EXE 2504 IEXPLORE.EXE 2172 IEXPLORE.EXE 2172 IEXPLORE.EXE 2504 IEXPLORE.EXE 2504 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 2972 0421857eaa36c8b74155d7950e709ae6.exe 1592 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 2972 wrote to memory of 1592 2972 0421857eaa36c8b74155d7950e709ae6.exe 89 PID 2972 wrote to memory of 1592 2972 0421857eaa36c8b74155d7950e709ae6.exe 89 PID 2972 wrote to memory of 1592 2972 0421857eaa36c8b74155d7950e709ae6.exe 89 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 4776 1592 WaterMark.exe 90 PID 1592 wrote to memory of 3448 1592 WaterMark.exe 96 PID 1592 wrote to memory of 3448 1592 WaterMark.exe 96 PID 1592 wrote to memory of 404 1592 WaterMark.exe 97 PID 1592 wrote to memory of 404 1592 WaterMark.exe 97 PID 404 wrote to memory of 2172 404 iexplore.exe 99 PID 404 wrote to memory of 2172 404 iexplore.exe 99 PID 404 wrote to memory of 2172 404 iexplore.exe 99 PID 3448 wrote to memory of 2504 3448 iexplore.exe 98 PID 3448 wrote to memory of 2504 3448 iexplore.exe 98 PID 3448 wrote to memory of 2504 3448 iexplore.exe 98
Processes
-
C:\Users\Admin\AppData\Local\Temp\0421857eaa36c8b74155d7950e709ae6.exe"C:\Users\Admin\AppData\Local\Temp\0421857eaa36c8b74155d7950e709ae6.exe"1⤵
- Drops file in Program Files directory
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:2972 -
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:1592 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:4776
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4776 -s 2084⤵
- Program crash
PID:3168
-
-
-
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:3448 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:3448 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2504
-
-
-
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:404 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:404 CREDAT:17410 /prefetch:24⤵
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:2172
-
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4776 -ip 47761⤵PID:4804
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
-
Filesize
92KB
MD50421857eaa36c8b74155d7950e709ae6
SHA1e5c75a8679787d64e80605ca7e979b533a7962a5
SHA256eb09851c234dd55c561d12e70d6eb347e364aa1240d9ee7156fe44188d5b206f
SHA5123fb3850550bef85cb87078c2bb10aa2a78c592188ee4d691ee3ec88b90df1dcc47b32b13b2da95a301606b3ea588faf5868d8dfceb5a956994054f4161c15484
-
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B82490B4-A2A5-11EE-BCD9-DE9D3A49EF0E}.dat
Filesize5KB
MD5d46b46a2f95478fe7153c42104ec7882
SHA107876b3717b30470231fd437938ab4af587b9115
SHA256fb659b1657ddd3cdec553bb224bb1ac987bf16d3c8b48398eb676ced43051ac8
SHA5127fefff1aaf6422ef4730a3326a1bb5ebfea19b2d1a0b58d7e636342f0b88cd2b6e474935f635903e5bc58de1a13b94bdab20a4cd90437385e67322a483ee51f6
-
C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{B82BB990-A2A5-11EE-BCD9-DE9D3A49EF0E}.dat
Filesize5KB
MD566721387b8d92b5df12f8bb1308fd73e
SHA17a375455c158c35f433b75d8c35b52c026b399f3
SHA256a2d1e4f2d6c6614957729ce4f6ddb1897ed785719c68f9cc90dcd1f35d8edeab
SHA512cb4cd5dddec65277c6c3b6e9b1a718c74fc51efecfa4c7cbc868523299e71acdac479ae45df48db5de3eb81a0f803a83a05fd61f59a29913cef1765040fa7d01
-
Filesize
15KB
MD51a545d0052b581fbb2ab4c52133846bc
SHA162f3266a9b9925cd6d98658b92adec673cbe3dd3
SHA256557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1
SHA512bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d
-
Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee