Analysis
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max time kernel
91s -
max time network
144s -
platform
windows10-2004_x64 -
resource
win10v2004-20241007-en -
resource tags
arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system -
submitted
22-01-2025 21:47
Static task
static1
Behavioral task
behavioral1
Sample
25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe
Resource
win7-20240903-en
General
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Target
25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe
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Size
116KB
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MD5
ea51400c42c8b72137ec73f82b662096
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SHA1
66aac478e6ad8670f632411a110e073eb9e3387d
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SHA256
25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3
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SHA512
5ba150487aaa124307ee7eedd53f18bbc2898b42ac33b91e1fa96b54a7482b84ff44e1accb46f244f4f1d0bf57b9e924c3aeb2a2dcf05b92e2f9ebf5c620687b
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SSDEEP
1536:AVZnxm6MG9xgfrvEaoiT/GyphjXDYjKwttoswRmhApEa:wnxwgxgfR/DVG7wBpEa
Malware Config
Signatures
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Ramnit family
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Executes dropped EXE 1 IoCs
pid Process 380 WaterMark.exe -
resource yara_rule behavioral2/memory/1216-6-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1216-5-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1216-12-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1216-11-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/380-29-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/380-23-0x0000000000400000-0x0000000000437000-memory.dmp upx behavioral2/memory/1216-9-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1216-8-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/1216-4-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/380-35-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/380-37-0x0000000000400000-0x0000000000421000-memory.dmp upx behavioral2/memory/380-39-0x0000000000400000-0x0000000000421000-memory.dmp upx -
Drops file in Program Files directory 3 IoCs
description ioc Process File opened for modification C:\Program Files (x86)\Microsoft\pxAB44.tmp 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe File created C:\Program Files (x86)\Microsoft\WaterMark.exe 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe File opened for modification C:\Program Files (x86)\Microsoft\WaterMark.exe 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 4980 4144 WerFault.exe 84 -
System Location Discovery: System Language Discovery 1 TTPs 4 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language WaterMark.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language IEXPLORE.EXE -
description ioc Process Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157527" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\GPU IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157527" IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff2400000024000000aa04000089020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\WindowsSearch\Version = "WS not running" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\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-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1269264910" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1271609121" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\PendingRecovery iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{773B855D-D90A-11EF-A7EA-CAFD856C81B1} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main\WindowsSearch iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1269109051" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (data) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\Window_Placement = 2c0000000200000003000000ffffffffffffffffffffffffffffffff3e0000003e000000c4040000a3020000 iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateLowDateTime = "1271609121" IEXPLORE.EXE Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157527" IEXPLORE.EXE Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\ iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\CompatibilityFlags = "0" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\AdminActive\{7739222B-D90A-11EF-A7EA-CAFD856C81B1} = "0" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\DomainSuggestion iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames iexplore.exe Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\FileNames\en-US = "en-US.1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Main IEXPLORE.EXE Set value (str) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Main\FullScreen = "no" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\Recovery\PendingRecovery\AdminActive = "1" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\VersionManager iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\VersionManager\LastCheckForUpdateHighDateTime = "31157527" iexplore.exe Set value (int) \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\SOFTWARE\Microsoft\Internet Explorer\DomainSuggestion\NextUpdateDate = "444347419" iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe Key created \REGISTRY\USER\S-1-5-21-3350944739-639801879-157714471-1000\Software\Microsoft\Internet Explorer\Recovery\AdminActive iexplore.exe -
Suspicious behavior: EnumeratesProcesses 16 IoCs
pid Process 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe 380 WaterMark.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 380 WaterMark.exe -
Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 4516 iexplore.exe 1528 iexplore.exe -
Suspicious use of SetWindowsHookEx 10 IoCs
pid Process 1528 iexplore.exe 1528 iexplore.exe 4516 iexplore.exe 4516 iexplore.exe 1224 IEXPLORE.EXE 1224 IEXPLORE.EXE 1832 IEXPLORE.EXE 1832 IEXPLORE.EXE 1224 IEXPLORE.EXE 1224 IEXPLORE.EXE -
Suspicious use of UnmapMainImage 2 IoCs
pid Process 1216 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe 380 WaterMark.exe -
Suspicious use of WriteProcessMemory 22 IoCs
description pid Process procid_target PID 1216 wrote to memory of 380 1216 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe 83 PID 1216 wrote to memory of 380 1216 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe 83 PID 1216 wrote to memory of 380 1216 25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe 83 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 4144 380 WaterMark.exe 84 PID 380 wrote to memory of 1528 380 WaterMark.exe 89 PID 380 wrote to memory of 1528 380 WaterMark.exe 89 PID 380 wrote to memory of 4516 380 WaterMark.exe 90 PID 380 wrote to memory of 4516 380 WaterMark.exe 90 PID 4516 wrote to memory of 1224 4516 iexplore.exe 92 PID 4516 wrote to memory of 1224 4516 iexplore.exe 92 PID 4516 wrote to memory of 1224 4516 iexplore.exe 92 PID 1528 wrote to memory of 1832 1528 iexplore.exe 93 PID 1528 wrote to memory of 1832 1528 iexplore.exe 93 PID 1528 wrote to memory of 1832 1528 iexplore.exe 93
Processes
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C:\Users\Admin\AppData\Local\Temp\25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe"C:\Users\Admin\AppData\Local\Temp\25b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3.exe"1⤵
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:1216 -
C:\Program Files (x86)\Microsoft\WaterMark.exe"C:\Program Files (x86)\Microsoft\WaterMark.exe"2⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of UnmapMainImage
- Suspicious use of WriteProcessMemory
PID:380 -
C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe3⤵PID:4144
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4144 -s 2044⤵
- Program crash
PID:4980
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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:1528 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1528 CREDAT:17410 /prefetch:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1832
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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:4516 -
C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE"C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4516 CREDAT:17410 /prefetch:24⤵
- System Location Discovery: System Language Discovery
- Modifies Internet Explorer settings
- Suspicious use of SetWindowsHookEx
PID:1224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 4144 -ip 41441⤵PID:4788
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
116KB
MD5ea51400c42c8b72137ec73f82b662096
SHA166aac478e6ad8670f632411a110e073eb9e3387d
SHA25625b61913dd908b2ad3953638404c2ed3e762ea80a87ca3c93859c589cfb109b3
SHA5125ba150487aaa124307ee7eedd53f18bbc2898b42ac33b91e1fa96b54a7482b84ff44e1accb46f244f4f1d0bf57b9e924c3aeb2a2dcf05b92e2f9ebf5c620687b
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize471B
MD52c48c73220d62a8faffe599e95896274
SHA1452cd4222360fe7e881055d815ec65a2bbac564b
SHA25635a3978f9dea3056b0c4a0a1945d785bb7a0022484782f414fa9ffa04f3d5967
SHA5126547f2798297acc7ac11506328ef05f29074655f3e5a60adb188106c769806a2b1a8a15c7bd38c39da560df7df953798561398245667095536fc5748692cc9d8
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD5efd5583a84bf2bb04cdbc4cfc165b518
SHA17ff8fe3b3a18b2a8fea6159ef8990f5e00761a37
SHA256abd0c57f89b680d6c25202ba06386fcc5591dc1431ef29078ae24df70480ba2b
SHA51244e94df926b6b905df10d41002e3e7b64f1649b0362c564d938f8d2a385d5b589eb9c88b9c4c230e7ca3899cabd099a39025b5f658942f935416c715dcfcd49f
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776
Filesize404B
MD51bc75fecbdd5cbbdb3ebad71d99a357c
SHA10c3497433d74a9ae479011ba00bae7026ef76394
SHA256d29183f4a5b2f39a3111dd07395eadbc1860eeefc1ede4eeb634c5be2d4207b6
SHA5122cedc8e00f67eb7ba7a726361ec778580c61e44ca77cc472294e3e59e155275f522e271ab47b4935907312f7b732a7317df573517ff92d87a3471367093ab651
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{7739222B-D90A-11EF-A7EA-CAFD856C81B1}.dat
Filesize3KB
MD52645e6c2426c2539faf861828d845504
SHA1a3510098c00de4b9b6d8fbb5d88d27da6a241829
SHA256f415e90331a8cd956090e14b591940c0950fd360957d273973181fd5ba34d524
SHA5120832a8269574d3157a4056273ed06cb4a249b3a071be61309d26c3789929a67ba3c14adca3fa1f8ded7f687a3fda7dda8b65ffa820f34570f16d64a682036d5d
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C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{773B855D-D90A-11EF-A7EA-CAFD856C81B1}.dat
Filesize5KB
MD579eb8b3c0d102abef7926f6beed7c1e3
SHA168535c68fb1715f20ec7057b1936848946047fa1
SHA256dcf4ebe450c990f86036f8b2fa9eb95711cdc4459fb55127f1b44036b429760a
SHA512e8669f3169605e264f906b6640784c56d5311f276ac1fbccba0ee2db422da2cc079951cdade65593105e9afe29091d9178489872e2480772025dd9fc1ba56707
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Filesize
17KB
MD55a34cb996293fde2cb7a4ac89587393a
SHA13c96c993500690d1a77873cd62bc639b3a10653f
SHA256c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad
SHA512e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee